/*  Prototype JavaScript framework, version 1.6.0.1
 *  (c) 2005-2007 Sam Stephenson
 *
 *  Prototype is freely distributable under the terms of an MIT-style license.
 *  For details, see the Prototype web site: http://www.prototypejs.org/
 *
 *--------------------------------------------------------------------------*/

var Prototype = {
  Version: '1.6.0.1',

  Browser: {
    IE:     !!(window.attachEvent && !window.opera),
    Opera:  !!window.opera,
    WebKit: navigator.userAgent.indexOf('AppleWebKit/') > -1,
    Gecko:  navigator.userAgent.indexOf('Gecko') > -1 && navigator.userAgent.indexOf('KHTML') == -1,
    MobileSafari: !!navigator.userAgent.match(/Apple.*Mobile.*Safari/)
  },

  BrowserFeatures: {
    XPath: !!document.evaluate,
    ElementExtensions: !!window.HTMLElement,
    SpecificElementExtensions:
      document.createElement('div').__proto__ &&
      document.createElement('div').__proto__ !==
        document.createElement('form').__proto__
  },

  ScriptFragment: '<script[^>]*>([\\S\\s]*?)<\/script>',
  JSONFilter: /^\/\*-secure-([\s\S]*)\*\/\s*$/,

  emptyFunction: function() { },
  K: function(x) { return x }
};

if (Prototype.Browser.MobileSafari)
  Prototype.BrowserFeatures.SpecificElementExtensions = false;


/* Based on Alex Arnell's inheritance implementation. */
var Class = {
  create: function() {
    var parent = null, properties = $A(arguments);
    if (Object.isFunction(properties[0]))
      parent = properties.shift();

    function klass() {
      this.initialize.apply(this, arguments);
    }

    Object.extend(klass, Class.Methods);
    klass.superclass = parent;
    klass.subclasses = [];

    if (parent) {
      var subclass = function() { };
      subclass.prototype = parent.prototype;
      klass.prototype = new subclass;
      parent.subclasses.push(klass);
    }

    for (var i = 0; i < properties.length; i++)
      klass.addMethods(properties[i]);

    if (!klass.prototype.initialize)
      klass.prototype.initialize = Prototype.emptyFunction;

    klass.prototype.constructor = klass;

    return klass;
  }
};

Class.Methods = {
  addMethods: function(source) {
    var ancestor   = this.superclass && this.superclass.prototype;
    var properties = Object.keys(source);

    if (!Object.keys({ toString: true }).length)
      properties.push("toString", "valueOf");

    for (var i = 0, length = properties.length; i < length; i++) {
      var property = properties[i], value = source[property];
      if (ancestor && Object.isFunction(value) &&
          value.argumentNames().first() == "$super") {
        var method = value, value = Object.extend((function(m) {
          return function() { return ancestor[m].apply(this, arguments) };
        })(property).wrap(method), {
          valueOf:  function() { return method },
          toString: function() { return method.toString() }
        });
      }
      this.prototype[property] = value;
    }

    return this;
  }
};

var Abstract = { };

Object.extend = function(destination, source) {
  for (var property in source)
    destination[property] = source[property];
  return destination;
};

Object.extend(Object, {
  inspect: function(object) {
    try {
      if (Object.isUndefined(object)) return 'undefined';
      if (object === null) return 'null';
      return object.inspect ? object.inspect() : object.toString();
    } catch (e) {
      if (e instanceof RangeError) return '...';
      throw e;
    }
  },

  toJSON: function(object) {
    var type = typeof object;
    switch (type) {
      case 'undefined':
      case 'function':
      case 'unknown': return;
      case 'boolean': return object.toString();
    }

    if (object === null) return 'null';
    if (object.toJSON) return object.toJSON();
    if (Object.isElement(object)) return;

    var results = [];
    for (var property in object) {
      var value = Object.toJSON(object[property]);
      if (!Object.isUndefined(value))
        results.push(property.toJSON() + ': ' + value);
    }

    return '{' + results.join(', ') + '}';
  },

  toQueryString: function(object) {
    return $H(object).toQueryString();
  },

  toHTML: function(object) {
    return object && object.toHTML ? object.toHTML() : String.interpret(object);
  },

  keys: function(object) {
    var keys = [];
    for (var property in object)
      keys.push(property);
    return keys;
  },

  values: function(object) {
    var values = [];
    for (var property in object)
      values.push(object[property]);
    return values;
  },

  clone: function(object) {
    return Object.extend({ }, object);
  },

  isElement: function(object) {
    return object && object.nodeType == 1;
  },

  isArray: function(object) {
    return object && object.constructor === Array;
  },

  isHash: function(object) {
    return object instanceof Hash;
  },

  isFunction: function(object) {
    return typeof object == "function";
  },

  isString: function(object) {
    return typeof object == "string";
  },

  isNumber: function(object) {
    return typeof object == "number";
  },

  isUndefined: function(object) {
    return typeof object == "undefined";
  }
});

Object.extend(Function.prototype, {
  argumentNames: function() {
    var names = this.toString().match(/^[\s\(]*function[^(]*\((.*?)\)/)[1].split(",").invoke("strip");
    return names.length == 1 && !names[0] ? [] : names;
  },

  bind: function() {
    if (arguments.length < 2 && Object.isUndefined(arguments[0])) return this;
    var __method = this, args = $A(arguments), object = args.shift();
    return function() {
      return __method.apply(object, args.concat($A(arguments)));
    }
  },

  bindAsEventListener: function() {
    var __method = this, args = $A(arguments), object = args.shift();
    return function(event) {
      return __method.apply(object, [event || window.event].concat(args));
    }
  },

  curry: function() {
    if (!arguments.length) return this;
    var __method = this, args = $A(arguments);
    return function() {
      return __method.apply(this, args.concat($A(arguments)));
    }
  },

  delay: function() {
    var __method = this, args = $A(arguments), timeout = args.shift() * 1000;
    return window.setTimeout(function() {
      return __method.apply(__method, args);
    }, timeout);
  },

  wrap: function(wrapper) {
    var __method = this;
    return function() {
      return wrapper.apply(this, [__method.bind(this)].concat($A(arguments)));
    }
  },

  methodize: function() {
    if (this._methodized) return this._methodized;
    var __method = this;
    return this._methodized = function() {
      return __method.apply(null, [this].concat($A(arguments)));
    };
  }
});

Function.prototype.defer = Function.prototype.delay.curry(0.01);

Date.prototype.toJSON = function() {
  return '"' + this.getUTCFullYear() + '-' +
    (this.getUTCMonth() + 1).toPaddedString(2) + '-' +
    this.getUTCDate().toPaddedString(2) + 'T' +
    this.getUTCHours().toPaddedString(2) + ':' +
    this.getUTCMinutes().toPaddedString(2) + ':' +
    this.getUTCSeconds().toPaddedString(2) + 'Z"';
};

var Try = {
  these: function() {
    var returnValue;

    for (var i = 0, length = arguments.length; i < length; i++) {
      var lambda = arguments[i];
      try {
        returnValue = lambda();
        break;
      } catch (e) { }
    }

    return returnValue;
  }
};

RegExp.prototype.match = RegExp.prototype.test;

RegExp.escape = function(str) {
  return String(str).replace(/([.*+?^=!:${}()|[\]\/\\])/g, '\\$1');
};

/*--------------------------------------------------------------------------*/

var PeriodicalExecuter = Class.create({
  initialize: function(callback, frequency) {
    this.callback = callback;
    this.frequency = frequency;
    this.currentlyExecuting = false;

    this.registerCallback();
  },

  registerCallback: function() {
    this.timer = setInterval(this.onTimerEvent.bind(this), this.frequency * 1000);
  },

  execute: function() {
    this.callback(this);
  },

  stop: function() {
    if (!this.timer) return;
    clearInterval(this.timer);
    this.timer = null;
  },

  onTimerEvent: function() {
    if (!this.currentlyExecuting) {
      try {
        this.currentlyExecuting = true;
        this.execute();
      } finally {
        this.currentlyExecuting = false;
      }
    }
  }
});
Object.extend(String, {
  interpret: function(value) {
    return value == null ? '' : String(value);
  },
  specialChar: {
    '\b': '\\b',
    '\t': '\\t',
    '\n': '\\n',
    '\f': '\\f',
    '\r': '\\r',
    '\\': '\\\\'
  }
});

Object.extend(String.prototype, {
  gsub: function(pattern, replacement) {
    var result = '', source = this, match;
    replacement = arguments.callee.prepareReplacement(replacement);

    while (source.length > 0) {
      if (match = source.match(pattern)) {
        result += source.slice(0, match.index);
        result += String.interpret(replacement(match));
        source  = source.slice(match.index + match[0].length);
      } else {
        result += source, source = '';
      }
    }
    return result;
  },

  sub: function(pattern, replacement, count) {
    replacement = this.gsub.prepareReplacement(replacement);
    count = Object.isUndefined(count) ? 1 : count;

    return this.gsub(pattern, function(match) {
      if (--count < 0) return match[0];
      return replacement(match);
    });
  },

  scan: function(pattern, iterator) {
    this.gsub(pattern, iterator);
    return String(this);
  },

  truncate: function(length, truncation) {
    length = length || 30;
    truncation = Object.isUndefined(truncation) ? '...' : truncation;
    return this.length > length ?
      this.slice(0, length - truncation.length) + truncation : String(this);
  },

  strip: function() {
    return this.replace(/^\s+/, '').replace(/\s+$/, '');
  },

  stripTags: function() {
    return this.replace(/<\/?[^>]+>/gi, '');
  },

  stripScripts: function() {
    return this.replace(new RegExp(Prototype.ScriptFragment, 'img'), '');
  },

  extractScripts: function() {
    var matchAll = new RegExp(Prototype.ScriptFragment, 'img');
    var matchOne = new RegExp(Prototype.ScriptFragment, 'im');
    return (this.match(matchAll) || []).map(function(scriptTag) {
      return (scriptTag.match(matchOne) || ['', ''])[1];
    });
  },

  evalScripts: function() {
    return this.extractScripts().map(function(script) { return eval(script) });
  },

  escapeHTML: function() {
    var self = arguments.callee;
    self.text.data = this;
    return self.div.innerHTML;
  },

  unescapeHTML: function() {
    var div = new Element('div');
    div.innerHTML = this.stripTags();
    return div.childNodes[0] ? (div.childNodes.length > 1 ?
      $A(div.childNodes).inject('', function(memo, node) { return memo+node.nodeValue }) :
      div.childNodes[0].nodeValue) : '';
  },

  toQueryParams: function(separator) {
    var match = this.strip().match(/([^?#]*)(#.*)?$/);
    if (!match) return { };

    return match[1].split(separator || '&').inject({ }, function(hash, pair) {
      if ((pair = pair.split('='))[0]) {
        var key = decodeURIComponent(pair.shift());
        var value = pair.length > 1 ? pair.join('=') : pair[0];
        if (value != undefined) value = decodeURIComponent(value);

        if (key in hash) {
          if (!Object.isArray(hash[key])) hash[key] = [hash[key]];
          hash[key].push(value);
        }
        else hash[key] = value;
      }
      return hash;
    });
  },

  toArray: function() {
    return this.split('');
  },

  succ: function() {
    return this.slice(0, this.length - 1) +
      String.fromCharCode(this.charCodeAt(this.length - 1) + 1);
  },

  times: function(count) {
    return count < 1 ? '' : new Array(count + 1).join(this);
  },

  camelize: function() {
    var parts = this.split('-'), len = parts.length;
    if (len == 1) return parts[0];

    var camelized = this.charAt(0) == '-'
      ? parts[0].charAt(0).toUpperCase() + parts[0].substring(1)
      : parts[0];

    for (var i = 1; i < len; i++)
      camelized += parts[i].charAt(0).toUpperCase() + parts[i].substring(1);

    return camelized;
  },

  capitalize: function() {
    return this.charAt(0).toUpperCase() + this.substring(1).toLowerCase();
  },

  underscore: function() {
    return this.gsub(/::/, '/').gsub(/([A-Z]+)([A-Z][a-z])/,'#{1}_#{2}').gsub(/([a-z\d])([A-Z])/,'#{1}_#{2}').gsub(/-/,'_').toLowerCase();
  },

  dasherize: function() {
    return this.gsub(/_/,'-');
  },

  inspect: function(useDoubleQuotes) {
    var escapedString = this.gsub(/[\x00-\x1f\\]/, function(match) {
      var character = String.specialChar[match[0]];
      return character ? character : '\\u00' + match[0].charCodeAt().toPaddedString(2, 16);
    });
    if (useDoubleQuotes) return '"' + escapedString.replace(/"/g, '\\"') + '"';
    return "'" + escapedString.replace(/'/g, '\\\'') + "'";
  },

  toJSON: function() {
    return this.inspect(true);
  },

  unfilterJSON: function(filter) {
    return this.sub(filter || Prototype.JSONFilter, '#{1}');
  },

  isJSON: function() {
    var str = this;
    if (str.blank()) return false;
    str = this.replace(/\\./g, '@').replace(/"[^"\\\n\r]*"/g, '');
    return (/^[,:{}\[\]0-9.\-+Eaeflnr-u \n\r\t]*$/).test(str);
  },

  evalJSON: function(sanitize) {
    var json = this.unfilterJSON();
    try {
      if (!sanitize || json.isJSON()) return eval('(' + json + ')');
    } catch (e) { }
    throw new SyntaxError('Badly formed JSON string: ' + this.inspect());
  },

  include: function(pattern) {
    return this.indexOf(pattern) > -1;
  },

  startsWith: function(pattern) {
    return this.indexOf(pattern) === 0;
  },

  endsWith: function(pattern) {
    var d = this.length - pattern.length;
    return d >= 0 && this.lastIndexOf(pattern) === d;
  },

  empty: function() {
    return this == '';
  },

  blank: function() {
    return /^\s*$/.test(this);
  },

  interpolate: function(object, pattern) {
    return new Template(this, pattern).evaluate(object);
  }
});

if (Prototype.Browser.WebKit || Prototype.Browser.IE) Object.extend(String.prototype, {
  escapeHTML: function() {
    return this.replace(/&/g,'&amp;').replace(/</g,'&lt;').replace(/>/g,'&gt;');
  },
  unescapeHTML: function() {
    return this.replace(/&amp;/g,'&').replace(/&lt;/g,'<').replace(/&gt;/g,'>');
  }
});

String.prototype.gsub.prepareReplacement = function(replacement) {
  if (Object.isFunction(replacement)) return replacement;
  var template = new Template(replacement);
  return function(match) { return template.evaluate(match) };
};

String.prototype.parseQuery = String.prototype.toQueryParams;

Object.extend(String.prototype.escapeHTML, {
  div:  document.createElement('div'),
  text: document.createTextNode('')
});

with (String.prototype.escapeHTML) div.appendChild(text);

var Template = Class.create({
  initialize: function(template, pattern) {
    this.template = template.toString();
    this.pattern = pattern || Template.Pattern;
  },

  evaluate: function(object) {
    if (Object.isFunction(object.toTemplateReplacements))
      object = object.toTemplateReplacements();

    return this.template.gsub(this.pattern, function(match) {
      if (object == null) return '';

      var before = match[1] || '';
      if (before == '\\') return match[2];

      var ctx = object, expr = match[3];
      var pattern = /^([^.[]+|\[((?:.*?[^\\])?)\])(\.|\[|$)/;
      match = pattern.exec(expr);
      if (match == null) return before;

      while (match != null) {
        var comp = match[1].startsWith('[') ? match[2].gsub('\\\\]', ']') : match[1];
        ctx = ctx[comp];
        if (null == ctx || '' == match[3]) break;
        expr = expr.substring('[' == match[3] ? match[1].length : match[0].length);
        match = pattern.exec(expr);
      }

      return before + String.interpret(ctx);
    }.bind(this));
  }
});
Template.Pattern = /(^|.|\r|\n)(#\{(.*?)\})/;

var $break = { };

var Enumerable = {
  each: function(iterator, context) {
    var index = 0;
    iterator = iterator.bind(context);
    try {
      this._each(function(value) {
        iterator(value, index++);
      });
    } catch (e) {
      if (e != $break) throw e;
    }
    return this;
  },

  eachSlice: function(number, iterator, context) {
    iterator = iterator ? iterator.bind(context) : Prototype.K;
    var index = -number, slices = [], array = this.toArray();
    while ((index += number) < array.length)
      slices.push(array.slice(index, index+number));
    return slices.collect(iterator, context);
  },

  all: function(iterator, context) {
    iterator = iterator ? iterator.bind(context) : Prototype.K;
    var result = true;
    this.each(function(value, index) {
      result = result && !!iterator(value, index);
      if (!result) throw $break;
    });
    return result;
  },

  any: function(iterator, context) {
    iterator = iterator ? iterator.bind(context) : Prototype.K;
    var result = false;
    this.each(function(value, index) {
      if (result = !!iterator(value, index))
        throw $break;
    });
    return result;
  },

  collect: function(iterator, context) {
    iterator = iterator ? iterator.bind(context) : Prototype.K;
    var results = [];
    this.each(function(value, index) {
      results.push(iterator(value, index));
    });
    return results;
  },

  detect: function(iterator, context) {
    iterator = iterator.bind(context);
    var result;
    this.each(function(value, index) {
      if (iterator(value, index)) {
        result = value;
        throw $break;
      }
    });
    return result;
  },

  findAll: function(iterator, context) {
    iterator = iterator.bind(context);
    var results = [];
    this.each(function(value, index) {
      if (iterator(value, index))
        results.push(value);
    });
    return results;
  },

  grep: function(filter, iterator, context) {
    iterator = iterator ? iterator.bind(context) : Prototype.K;
    var results = [];

    if (Object.isString(filter))
      filter = new RegExp(filter);

    this.each(function(value, index) {
      if (filter.match(value))
        results.push(iterator(value, index));
    });
    return results;
  },

  include: function(object) {
    if (Object.isFunction(this.indexOf))
      if (this.indexOf(object) != -1) return true;

    var found = false;
    this.each(function(value) {
      if (value == object) {
        found = true;
        throw $break;
      }
    });
    return found;
  },

  inGroupsOf: function(number, fillWith) {
    fillWith = Object.isUndefined(fillWith) ? null : fillWith;
    return this.eachSlice(number, function(slice) {
      while(slice.length < number) slice.push(fillWith);
      return slice;
    });
  },

  inject: function(memo, iterator, context) {
    iterator = iterator.bind(context);
    this.each(function(value, index) {
      memo = iterator(memo, value, index);
    });
    return memo;
  },

  invoke: function(method) {
    var args = $A(arguments).slice(1);
    return this.map(function(value) {
      return value[method].apply(value, args);
    });
  },

  max: function(iterator, context) {
    iterator = iterator ? iterator.bind(context) : Prototype.K;
    var result;
    this.each(function(value, index) {
      value = iterator(value, index);
      if (result == null || value >= result)
        result = value;
    });
    return result;
  },

  min: function(iterator, context) {
    iterator = iterator ? iterator.bind(context) : Prototype.K;
    var result;
    this.each(function(value, index) {
      value = iterator(value, index);
      if (result == null || value < result)
        result = value;
    });
    return result;
  },

  partition: function(iterator, context) {
    iterator = iterator ? iterator.bind(context) : Prototype.K;
    var trues = [], falses = [];
    this.each(function(value, index) {
      (iterator(value, index) ?
        trues : falses).push(value);
    });
    return [trues, falses];
  },

  pluck: function(property) {
    var results = [];
    this.each(function(value) {
      results.push(value[property]);
    });
    return results;
  },

  reject: function(iterator, context) {
    iterator = iterator.bind(context);
    var results = [];
    this.each(function(value, index) {
      if (!iterator(value, index))
        results.push(value);
    });
    return results;
  },

  sortBy: function(iterator, context) {
    iterator = iterator.bind(context);
    return this.map(function(value, index) {
      return {value: value, criteria: iterator(value, index)};
    }).sort(function(left, right) {
      var a = left.criteria, b = right.criteria;
      return a < b ? -1 : a > b ? 1 : 0;
    }).pluck('value');
  },

  toArray: function() {
    return this.map();
  },

  zip: function() {
    var iterator = Prototype.K, args = $A(arguments);
    if (Object.isFunction(args.last()))
      iterator = args.pop();

    var collections = [this].concat(args).map($A);
    return this.map(function(value, index) {
      return iterator(collections.pluck(index));
    });
  },

  size: function() {
    return this.toArray().length;
  },

  inspect: function() {
    return '#<Enumerable:' + this.toArray().inspect() + '>';
  }
};

Object.extend(Enumerable, {
  map:     Enumerable.collect,
  find:    Enumerable.detect,
  select:  Enumerable.findAll,
  filter:  Enumerable.findAll,
  member:  Enumerable.include,
  entries: Enumerable.toArray,
  every:   Enumerable.all,
  some:    Enumerable.any
});
function $A(iterable) {
  if (!iterable) return [];
  if (iterable.toArray) return iterable.toArray();
  var length = iterable.length || 0, results = new Array(length);
  while (length--) results[length] = iterable[length];
  return results;
}

if (Prototype.Browser.WebKit) {
  function $A(iterable) {
    if (!iterable) return [];
    if (!(Object.isFunction(iterable) && iterable == '[object NodeList]') &&
        iterable.toArray) return iterable.toArray();
    var length = iterable.length || 0, results = new Array(length);
    while (length--) results[length] = iterable[length];
    return results;
  }
}

Array.from = $A;

Object.extend(Array.prototype, Enumerable);

if (!Array.prototype._reverse) Array.prototype._reverse = Array.prototype.reverse;

Object.extend(Array.prototype, {
  _each: function(iterator) {
    for (var i = 0, length = this.length; i < length; i++)
      iterator(this[i]);
  },

  clear: function() {
    this.length = 0;
    return this;
  },

  first: function() {
    return this[0];
  },

  last: function() {
    return this[this.length - 1];
  },

  compact: function() {
    return this.select(function(value) {
      return value != null;
    });
  },

  flatten: function() {
    return this.inject([], function(array, value) {
      return array.concat(Object.isArray(value) ?
        value.flatten() : [value]);
    });
  },

  without: function() {
    var values = $A(arguments);
    return this.select(function(value) {
      return !values.include(value);
    });
  },

  reverse: function(inline) {
    return (inline !== false ? this : this.toArray())._reverse();
  },

  reduce: function() {
    return this.length > 1 ? this : this[0];
  },

  uniq: function(sorted) {
    return this.inject([], function(array, value, index) {
      if (0 == index || (sorted ? array.last() != value : !array.include(value)))
        array.push(value);
      return array;
    });
  },

  intersect: function(array) {
    return this.uniq().findAll(function(item) {
      return array.detect(function(value) { return item === value });
    });
  },

  clone: function() {
    return [].concat(this);
  },

  size: function() {
    return this.length;
  },

  inspect: function() {
    return '[' + this.map(Object.inspect).join(', ') + ']';
  },

  toJSON: function() {
    var results = [];
    this.each(function(object) {
      var value = Object.toJSON(object);
      if (!Object.isUndefined(value)) results.push(value);
    });
    return '[' + results.join(', ') + ']';
  }
});

// use native browser JS 1.6 implementation if available
if (Object.isFunction(Array.prototype.forEach))
  Array.prototype._each = Array.prototype.forEach;

if (!Array.prototype.indexOf) Array.prototype.indexOf = function(item, i) {
  i || (i = 0);
  var length = this.length;
  if (i < 0) i = length + i;
  for (; i < length; i++)
    if (this[i] === item) return i;
  return -1;
};

if (!Array.prototype.lastIndexOf) Array.prototype.lastIndexOf = function(item, i) {
  i = isNaN(i) ? this.length : (i < 0 ? this.length + i : i) + 1;
  var n = this.slice(0, i).reverse().indexOf(item);
  return (n < 0) ? n : i - n - 1;
};

Array.prototype.toArray = Array.prototype.clone;

function $w(string) {
  if (!Object.isString(string)) return [];
  string = string.strip();
  return string ? string.split(/\s+/) : [];
}

if (Prototype.Browser.Opera){
  Array.prototype.concat = function() {
    var array = [];
    for (var i = 0, length = this.length; i < length; i++) array.push(this[i]);
    for (var i = 0, length = arguments.length; i < length; i++) {
      if (Object.isArray(arguments[i])) {
        for (var j = 0, arrayLength = arguments[i].length; j < arrayLength; j++)
          array.push(arguments[i][j]);
      } else {
        array.push(arguments[i]);
      }
    }
    return array;
  };
}
Object.extend(Number.prototype, {
  toColorPart: function() {
    return this.toPaddedString(2, 16);
  },

  succ: function() {
    return this + 1;
  },

  times: function(iterator) {
    $R(0, this, true).each(iterator);
    return this;
  },

  toPaddedString: function(length, radix) {
    var string = this.toString(radix || 10);
    return '0'.times(length - string.length) + string;
  },

  toJSON: function() {
    return isFinite(this) ? this.toString() : 'null';
  }
});

$w('abs round ceil floor').each(function(method){
  Number.prototype[method] = Math[method].methodize();
});
function $H(object) {
  return new Hash(object);
};

var Hash = Class.create(Enumerable, (function() {

  function toQueryPair(key, value) {
    if (Object.isUndefined(value)) return key;
    return key + '=' + encodeURIComponent(String.interpret(value));
  }

  return {
    initialize: function(object) {
      this._object = Object.isHash(object) ? object.toObject() : Object.clone(object);
    },

    _each: function(iterator) {
      for (var key in this._object) {
        var value = this._object[key], pair = [key, value];
        pair.key = key;
        pair.value = value;
        iterator(pair);
      }
    },

    set: function(key, value) {
      return this._object[key] = value;
    },

    get: function(key) {
      return this._object[key];
    },

    unset: function(key) {
      var value = this._object[key];
      delete this._object[key];
      return value;
    },

    toObject: function() {
      return Object.clone(this._object);
    },

    keys: function() {
      return this.pluck('key');
    },

    values: function() {
      return this.pluck('value');
    },

    index: function(value) {
      var match = this.detect(function(pair) {
        return pair.value === value;
      });
      return match && match.key;
    },

    merge: function(object) {
      return this.clone().update(object);
    },

    update: function(object) {
      return new Hash(object).inject(this, function(result, pair) {
        result.set(pair.key, pair.value);
        return result;
      });
    },

    toQueryString: function() {
      return this.map(function(pair) {
        var key = encodeURIComponent(pair.key), values = pair.value;

        if (values && typeof values == 'object') {
          if (Object.isArray(values))
            return values.map(toQueryPair.curry(key)).join('&');
        }
        return toQueryPair(key, values);
      }).join('&');
    },

    inspect: function() {
      return '#<Hash:{' + this.map(function(pair) {
        return pair.map(Object.inspect).join(': ');
      }).join(', ') + '}>';
    },

    toJSON: function() {
      return Object.toJSON(this.toObject());
    },

    clone: function() {
      return new Hash(this);
    }
  }
})());

Hash.prototype.toTemplateReplacements = Hash.prototype.toObject;
Hash.from = $H;
var ObjectRange = Class.create(Enumerable, {
  initialize: function(start, end, exclusive) {
    this.start = start;
    this.end = end;
    this.exclusive = exclusive;
  },

  _each: function(iterator) {
    var value = this.start;
    while (this.include(value)) {
      iterator(value);
      value = value.succ();
    }
  },

  include: function(value) {
    if (value < this.start)
      return false;
    if (this.exclusive)
      return value < this.end;
    return value <= this.end;
  }
});

var $R = function(start, end, exclusive) {
  return new ObjectRange(start, end, exclusive);
};

var Ajax = {
  getTransport: function() {
    return Try.these(
      function() {return new XMLHttpRequest()},
      function() {return new ActiveXObject('Msxml2.XMLHTTP')},
      function() {return new ActiveXObject('Microsoft.XMLHTTP')}
    ) || false;
  },

  activeRequestCount: 0
};

Ajax.Responders = {
  responders: [],

  _each: function(iterator) {
    this.responders._each(iterator);
  },

  register: function(responder) {
    if (!this.include(responder))
      this.responders.push(responder);
  },

  unregister: function(responder) {
    this.responders = this.responders.without(responder);
  },

  dispatch: function(callback, request, transport, json) {
    this.each(function(responder) {
      if (Object.isFunction(responder[callback])) {
        try {
          responder[callback].apply(responder, [request, transport, json]);
        } catch (e) { }
      }
    });
  }
};

Object.extend(Ajax.Responders, Enumerable);

Ajax.Responders.register({
  onCreate:   function() { Ajax.activeRequestCount++ },
  onComplete: function() { Ajax.activeRequestCount-- }
});

Ajax.Base = Class.create({
  initialize: function(options) {
    this.options = {
      method:       'post',
      asynchronous: true,
      contentType:  'application/x-www-form-urlencoded',
      encoding:     'UTF-8',
      parameters:   '',
      evalJSON:     true,
      evalJS:       true
    };
    Object.extend(this.options, options || { });

    this.options.method = this.options.method.toLowerCase();

    if (Object.isString(this.options.parameters))
      this.options.parameters = this.options.parameters.toQueryParams();
    else if (Object.isHash(this.options.parameters))
      this.options.parameters = this.options.parameters.toObject();
  }
});

Ajax.Request = Class.create(Ajax.Base, {
  _complete: false,

  initialize: function($super, url, options) {
    $super(options);
    this.transport = Ajax.getTransport();
    this.request(url);
  },

  request: function(url) {
    this.url = url;
    this.method = this.options.method;
    var params = Object.clone(this.options.parameters);

    if (!['get', 'post'].include(this.method)) {
      // simulate other verbs over post
      params['_method'] = this.method;
      this.method = 'post';
    }

    this.parameters = params;

    if (params = Object.toQueryString(params)) {
      // when GET, append parameters to URL
      if (this.method == 'get')
        this.url += (this.url.include('?') ? '&' : '?') + params;
      else if (/Konqueror|Safari|KHTML/.test(navigator.userAgent))
        params += '&_=';
    }

    try {
      var response = new Ajax.Response(this);
      if (this.options.onCreate) this.options.onCreate(response);
      Ajax.Responders.dispatch('onCreate', this, response);

      this.transport.open(this.method.toUpperCase(), this.url,
        this.options.asynchronous);

      if (this.options.asynchronous) this.respondToReadyState.bind(this).defer(1);

      this.transport.onreadystatechange = this.onStateChange.bind(this);
      this.setRequestHeaders();

      this.body = this.method == 'post' ? (this.options.postBody || params) : null;
      this.transport.send(this.body);

      /* Force Firefox to handle ready state 4 for synchronous requests */
      if (!this.options.asynchronous && this.transport.overrideMimeType)
        this.onStateChange();

    }
    catch (e) {
      this.dispatchException(e);
    }
  },

  onStateChange: function() {
    var readyState = this.transport.readyState;
    if (readyState > 1 && !((readyState == 4) && this._complete))
      this.respondToReadyState(this.transport.readyState);
  },

  setRequestHeaders: function() {
    var headers = {
      'X-Requested-With': 'XMLHttpRequest',
      'X-Prototype-Version': Prototype.Version,
      'Accept': 'text/javascript, text/html, application/xml, text/xml, */*'
    };

    if (this.method == 'post') {
      headers['Content-type'] = this.options.contentType +
        (this.options.encoding ? '; charset=' + this.options.encoding : '');

      /* Force "Connection: close" for older Mozilla browsers to work
       * around a bug where XMLHttpRequest sends an incorrect
       * Content-length header. See Mozilla Bugzilla #246651.
       */
      if (this.transport.overrideMimeType &&
          (navigator.userAgent.match(/Gecko\/(\d{4})/) || [0,2005])[1] < 2005)
            headers['Connection'] = 'close';
    }

    // user-defined headers
    if (typeof this.options.requestHeaders == 'object') {
      var extras = this.options.requestHeaders;

      if (Object.isFunction(extras.push))
        for (var i = 0, length = extras.length; i < length; i += 2)
          headers[extras[i]] = extras[i+1];
      else
        $H(extras).each(function(pair) { headers[pair.key] = pair.value });
    }

    for (var name in headers)
      this.transport.setRequestHeader(name, headers[name]);
  },

  success: function() {
    var status = this.getStatus();
    return !status || (status >= 200 && status < 300);
  },

  getStatus: function() {
    try {
      return this.transport.status || 0;
    } catch (e) { return 0 }
  },

  respondToReadyState: function(readyState) {
    var state = Ajax.Request.Events[readyState], response = new Ajax.Response(this);

    if (state == 'Complete') {
      try {
        this._complete = true;
        (this.options['on' + response.status]
         || this.options['on' + (this.success() ? 'Success' : 'Failure')]
         || Prototype.emptyFunction)(response, response.headerJSON);
      } catch (e) {
        this.dispatchException(e);
      }

      var contentType = response.getHeader('Content-type');
      if (this.options.evalJS == 'force'
          || (this.options.evalJS && contentType
          && contentType.match(/^\s*(text|application)\/(x-)?(java|ecma)script(;.*)?\s*$/i)))
        this.evalResponse();
    }

    try {
      (this.options['on' + state] || Prototype.emptyFunction)(response, response.headerJSON);
      Ajax.Responders.dispatch('on' + state, this, response, response.headerJSON);
    } catch (e) {
      this.dispatchException(e);
    }

    if (state == 'Complete') {
      // avoid memory leak in MSIE: clean up
      this.transport.onreadystatechange = Prototype.emptyFunction;
    }
  },

  getHeader: function(name) {
    try {
      return this.transport.getResponseHeader(name) || null;
    } catch (e) { return null }
  },

  evalResponse: function() {
    try {
      return eval((this.transport.responseText || '').unfilterJSON());
    } catch (e) {
      this.dispatchException(e);
    }
  },

  dispatchException: function(exception) {
    (this.options.onException || Prototype.emptyFunction)(this, exception);
    Ajax.Responders.dispatch('onException', this, exception);
  }
});

Ajax.Request.Events =
  ['Uninitialized', 'Loading', 'Loaded', 'Interactive', 'Complete'];

Ajax.Response = Class.create({
  initialize: function(request){
    this.request = request;
    var transport  = this.transport  = request.transport,
        readyState = this.readyState = transport.readyState;

    if((readyState > 2 && !Prototype.Browser.IE) || readyState == 4) {
      this.status       = this.getStatus();
      this.statusText   = this.getStatusText();
      this.responseText = String.interpret(transport.responseText);
      this.headerJSON   = this._getHeaderJSON();
    }

    if(readyState == 4) {
      var xml = transport.responseXML;
      this.responseXML  = Object.isUndefined(xml) ? null : xml;
      this.responseJSON = this._getResponseJSON();
    }
  },

  status:      0,
  statusText: '',

  getStatus: Ajax.Request.prototype.getStatus,

  getStatusText: function() {
    try {
      return this.transport.statusText || '';
    } catch (e) { return '' }
  },

  getHeader: Ajax.Request.prototype.getHeader,

  getAllHeaders: function() {
    try {
      return this.getAllResponseHeaders();
    } catch (e) { return null }
  },

  getResponseHeader: function(name) {
    return this.transport.getResponseHeader(name);
  },

  getAllResponseHeaders: function() {
    return this.transport.getAllResponseHeaders();
  },

  _getHeaderJSON: function() {
    var json = this.getHeader('X-JSON');
    if (!json) return null;
    json = decodeURIComponent(escape(json));
    try {
      return json.evalJSON(this.request.options.sanitizeJSON);
    } catch (e) {
      this.request.dispatchException(e);
    }
  },

  _getResponseJSON: function() {
    var options = this.request.options;
    if (!options.evalJSON || (options.evalJSON != 'force' &&
      !(this.getHeader('Content-type') || '').include('application/json')) ||
        this.responseText.blank())
          return null;
    try {
      return this.responseText.evalJSON(options.sanitizeJSON);
    } catch (e) {
      this.request.dispatchException(e);
    }
  }
});

Ajax.Updater = Class.create(Ajax.Request, {
  initialize: function($super, container, url, options) {
    this.container = {
      success: (container.success || container),
      failure: (container.failure || (container.success ? null : container))
    };

    options = Object.clone(options);
    var onComplete = options.onComplete;
    options.onComplete = (function(response, json) {
      this.updateContent(response.responseText);
      if (Object.isFunction(onComplete)) onComplete(response, json);
    }).bind(this);

    $super(url, options);
  },

  updateContent: function(responseText) {
    var receiver = this.container[this.success() ? 'success' : 'failure'],
        options = this.options;

    if (!options.evalScripts) responseText = responseText.stripScripts();

    if (receiver = $(receiver)) {
      if (options.insertion) {
        if (Object.isString(options.insertion)) {
          var insertion = { }; insertion[options.insertion] = responseText;
          receiver.insert(insertion);
        }
        else options.insertion(receiver, responseText);
      }
      else receiver.update(responseText);
    }
  }
});

Ajax.PeriodicalUpdater = Class.create(Ajax.Base, {
  initialize: function($super, container, url, options) {
    $super(options);
    this.onComplete = this.options.onComplete;

    this.frequency = (this.options.frequency || 2);
    this.decay = (this.options.decay || 1);

    this.updater = { };
    this.container = container;
    this.url = url;

    this.start();
  },

  start: function() {
    this.options.onComplete = this.updateComplete.bind(this);
    this.onTimerEvent();
  },

  stop: function() {
    this.updater.options.onComplete = undefined;
    clearTimeout(this.timer);
    (this.onComplete || Prototype.emptyFunction).apply(this, arguments);
  },

  updateComplete: function(response) {
    if (this.options.decay) {
      this.decay = (response.responseText == this.lastText ?
        this.decay * this.options.decay : 1);

      this.lastText = response.responseText;
    }
    this.timer = this.onTimerEvent.bind(this).delay(this.decay * this.frequency);
  },

  onTimerEvent: function() {
    this.updater = new Ajax.Updater(this.container, this.url, this.options);
  }
});
function $(element) {
  if (arguments.length > 1) {
    for (var i = 0, elements = [], length = arguments.length; i < length; i++)
      elements.push($(arguments[i]));
    return elements;
  }
  if (Object.isString(element))
    element = document.getElementById(element);
  return Element.extend(element);
}

if (Prototype.BrowserFeatures.XPath) {
  document._getElementsByXPath = function(expression, parentElement) {
    var results = [];
    var query = document.evaluate(expression, $(parentElement) || document,
      null, XPathResult.ORDERED_NODE_SNAPSHOT_TYPE, null);
    for (var i = 0, length = query.snapshotLength; i < length; i++)
      results.push(Element.extend(query.snapshotItem(i)));
    return results;
  };
}

/*--------------------------------------------------------------------------*/

if (!window.Node) var Node = { };

if (!Node.ELEMENT_NODE) {
  // DOM level 2 ECMAScript Language Binding
  Object.extend(Node, {
    ELEMENT_NODE: 1,
    ATTRIBUTE_NODE: 2,
    TEXT_NODE: 3,
    CDATA_SECTION_NODE: 4,
    ENTITY_REFERENCE_NODE: 5,
    ENTITY_NODE: 6,
    PROCESSING_INSTRUCTION_NODE: 7,
    COMMENT_NODE: 8,
    DOCUMENT_NODE: 9,
    DOCUMENT_TYPE_NODE: 10,
    DOCUMENT_FRAGMENT_NODE: 11,
    NOTATION_NODE: 12
  });
}

(function() {
  var element = this.Element;
  this.Element = function(tagName, attributes) {
    attributes = attributes || { };
    tagName = tagName.toLowerCase();
    var cache = Element.cache;
    if (Prototype.Browser.IE && attributes.name) {
      tagName = '<' + tagName + ' name="' + attributes.name + '">';
      delete attributes.name;
      return Element.writeAttribute(document.createElement(tagName), attributes);
    }
    if (!cache[tagName]) cache[tagName] = Element.extend(document.createElement(tagName));
    return Element.writeAttribute(cache[tagName].cloneNode(false), attributes);
  };
  Object.extend(this.Element, element || { });
}).call(window);

Element.cache = { };

Element.Methods = {
  visible: function(element) {
    return $(element).style.display != 'none';
  },

  toggle: function(element) {
    element = $(element);
    Element[Element.visible(element) ? 'hide' : 'show'](element);
    return element;
  },

  hide: function(element) {
    $(element).style.display = 'none';
    return element;
  },

  show: function(element) {
    $(element).style.display = '';
    return element;
  },

  remove: function(element) {
    element = $(element);
    element.parentNode.removeChild(element);
    return element;
  },

  update: function(element, content) {
    element = $(element);
    if (content && content.toElement) content = content.toElement();
    if (Object.isElement(content)) return element.update().insert(content);
    content = Object.toHTML(content);
    element.innerHTML = content.stripScripts();
    content.evalScripts.bind(content).defer();
    return element;
  },

  replace: function(element, content) {
    element = $(element);
    if (content && content.toElement) content = content.toElement();
    else if (!Object.isElement(content)) {
      content = Object.toHTML(content);
      var range = element.ownerDocument.createRange();
      range.selectNode(element);
      content.evalScripts.bind(content).defer();
      content = range.createContextualFragment(content.stripScripts());
    }
    element.parentNode.replaceChild(content, element);
    return element;
  },

  insert: function(element, insertions) {
    element = $(element);

    if (Object.isString(insertions) || Object.isNumber(insertions) ||
        Object.isElement(insertions) || (insertions && (insertions.toElement || insertions.toHTML)))
          insertions = {bottom:insertions};

    var content, insert, tagName, childNodes;

    for (position in insertions) {
      content  = insertions[position];
      position = position.toLowerCase();
      insert = Element._insertionTranslations[position];

      if (content && content.toElement) content = content.toElement();
      if (Object.isElement(content)) {
        insert(element, content);
        continue;
      }

      content = Object.toHTML(content);

      tagName = ((position == 'before' || position == 'after')
        ? element.parentNode : element).tagName.toUpperCase();

      childNodes = Element._getContentFromAnonymousElement(tagName, content.stripScripts());

      if (position == 'top' || position == 'after') childNodes.reverse();
      childNodes.each(insert.curry(element));

      content.evalScripts.bind(content).defer();
    }

    return element;
  },

  wrap: function(element, wrapper, attributes) {
    element = $(element);
    if (Object.isElement(wrapper))
      $(wrapper).writeAttribute(attributes || { });
    else if (Object.isString(wrapper)) wrapper = new Element(wrapper, attributes);
    else wrapper = new Element('div', wrapper);
    if (element.parentNode)
      element.parentNode.replaceChild(wrapper, element);
    wrapper.appendChild(element);
    return wrapper;
  },

  inspect: function(element) {
    element = $(element);
    var result = '<' + element.tagName.toLowerCase();
    $H({'id': 'id', 'className': 'class'}).each(function(pair) {
      var property = pair.first(), attribute = pair.last();
      var value = (element[property] || '').toString();
      if (value) result += ' ' + attribute + '=' + value.inspect(true);
    });
    return result + '>';
  },

  recursivelyCollect: function(element, property) {
    element = $(element);
    var elements = [];
    while (element = element[property])
      if (element.nodeType == 1)
        elements.push(Element.extend(element));
    return elements;
  },

  ancestors: function(element) {
    return $(element).recursivelyCollect('parentNode');
  },

  descendants: function(element) {
    return $(element).getElementsBySelector("*");
  },

  firstDescendant: function(element) {
    element = $(element).firstChild;
    while (element && element.nodeType != 1) element = element.nextSibling;
    return $(element);
  },

  immediateDescendants: function(element) {
    if (!(element = $(element).firstChild)) return [];
    while (element && element.nodeType != 1) element = element.nextSibling;
    if (element) return [element].concat($(element).nextSiblings());
    return [];
  },

  previousSiblings: function(element) {
    return $(element).recursivelyCollect('previousSibling');
  },

  nextSiblings: function(element) {
    return $(element).recursivelyCollect('nextSibling');
  },

  siblings: function(element) {
    element = $(element);
    return element.previousSiblings().reverse().concat(element.nextSiblings());
  },

  match: function(element, selector) {
    if (Object.isString(selector))
      selector = new Selector(selector);
    return selector.match($(element));
  },

  up: function(element, expression, index) {
    element = $(element);
    if (arguments.length == 1) return $(element.parentNode);
    var ancestors = element.ancestors();
    return Object.isNumber(expression) ? ancestors[expression] :
      Selector.findElement(ancestors, expression, index);
  },

  down: function(element, expression, index) {
    element = $(element);
    if (arguments.length == 1) return element.firstDescendant();
    return Object.isNumber(expression) ? element.descendants()[expression] :
      element.select(expression)[index || 0];
  },

  previous: function(element, expression, index) {
    element = $(element);
    if (arguments.length == 1) return $(Selector.handlers.previousElementSibling(element));
    var previousSiblings = element.previousSiblings();
    return Object.isNumber(expression) ? previousSiblings[expression] :
      Selector.findElement(previousSiblings, expression, index);
  },

  next: function(element, expression, index) {
    element = $(element);
    if (arguments.length == 1) return $(Selector.handlers.nextElementSibling(element));
    var nextSiblings = element.nextSiblings();
    return Object.isNumber(expression) ? nextSiblings[expression] :
      Selector.findElement(nextSiblings, expression, index);
  },

  select: function() {
    var args = $A(arguments), element = $(args.shift());
    return Selector.findChildElements(element, args);
  },

  adjacent: function() {
    var args = $A(arguments), element = $(args.shift());
    return Selector.findChildElements(element.parentNode, args).without(element);
  },

  identify: function(element) {
    element = $(element);
    var id = element.readAttribute('id'), self = arguments.callee;
    if (id) return id;
    do { id = 'anonymous_element_' + self.counter++ } while ($(id));
    element.writeAttribute('id', id);
    return id;
  },

  readAttribute: function(element, name) {
    element = $(element);
    if (Prototype.Browser.IE) {
      var t = Element._attributeTranslations.read;
      if (t.values[name]) return t.values[name](element, name);
      if (t.names[name]) name = t.names[name];
      if (name.include(':')) {
        return (!element.attributes || !element.attributes[name]) ? null :
         element.attributes[name].value;
      }
    }
    return element.getAttribute(name);
  },

  writeAttribute: function(element, name, value) {
    element = $(element);
    var attributes = { }, t = Element._attributeTranslations.write;

    if (typeof name == 'object') attributes = name;
    else attributes[name] = Object.isUndefined(value) ? true : value;

    for (var attr in attributes) {
      name = t.names[attr] || attr;
      value = attributes[attr];
      if (t.values[attr]) name = t.values[attr](element, value);
      if (value === false || value === null)
        element.removeAttribute(name);
      else if (value === true)
        element.setAttribute(name, name);
      else element.setAttribute(name, value);
    }
    return element;
  },

  getHeight: function(element) {
    return $(element).getDimensions().height;
  },

  getWidth: function(element) {
    return $(element).getDimensions().width;
  },

  classNames: function(element) {
    return new Element.ClassNames(element);
  },

  hasClassName: function(element, className) {
    if (!(element = $(element))) return;
    var elementClassName = element.className;
    return (elementClassName.length > 0 && (elementClassName == className ||
      new RegExp("(^|\\s)" + className + "(\\s|$)").test(elementClassName)));
  },

  addClassName: function(element, className) {
    if (!(element = $(element))) return;
    if (!element.hasClassName(className))
      element.className += (element.className ? ' ' : '') + className;
    return element;
  },

  removeClassName: function(element, className) {
    if (!(element = $(element))) return;
    element.className = element.className.replace(
      new RegExp("(^|\\s+)" + className + "(\\s+|$)"), ' ').strip();
    return element;
  },

  toggleClassName: function(element, className) {
    if (!(element = $(element))) return;
    return element[element.hasClassName(className) ?
      'removeClassName' : 'addClassName'](className);
  },

  // removes whitespace-only text node children
  cleanWhitespace: function(element) {
    element = $(element);
    var node = element.firstChild;
    while (node) {
      var nextNode = node.nextSibling;
      if (node.nodeType == 3 && !/\S/.test(node.nodeValue))
        element.removeChild(node);
      node = nextNode;
    }
    return element;
  },

  empty: function(element) {
    return $(element).innerHTML.blank();
  },

  descendantOf: function(element, ancestor) {
    element = $(element), ancestor = $(ancestor);
    var originalAncestor = ancestor;

    if (element.compareDocumentPosition)
      return (element.compareDocumentPosition(ancestor) & 8) === 8;

    if (element.sourceIndex && !Prototype.Browser.Opera) {
      var e = element.sourceIndex, a = ancestor.sourceIndex,
       nextAncestor = ancestor.nextSibling;
      if (!nextAncestor) {
        do { ancestor = ancestor.parentNode; }
        while (!(nextAncestor = ancestor.nextSibling) && ancestor.parentNode);
      }
      if (nextAncestor) return (e > a && e < nextAncestor.sourceIndex);
    }

    while (element = element.parentNode)
      if (element == originalAncestor) return true;
    return false;
  },

  scrollTo: function(element) {
    element = $(element);
    var pos = element.cumulativeOffset();
    window.scrollTo(pos[0], pos[1]);
    return element;
  },

  getStyle: function(element, style) {
    element = $(element);
    style = style == 'float' ? 'cssFloat' : style.camelize();
    var value = element.style[style];
    if (!value) {
      var css = document.defaultView.getComputedStyle(element, null);
      value = css ? css[style] : null;
    }
    if (style == 'opacity') return value ? parseFloat(value) : 1.0;
    return value == 'auto' ? null : value;
  },

  getOpacity: function(element) {
    return $(element).getStyle('opacity');
  },

  setStyle: function(element, styles) {
    element = $(element);
    var elementStyle = element.style, match;
    if (Object.isString(styles)) {
      element.style.cssText += ';' + styles;
      return styles.include('opacity') ?
        element.setOpacity(styles.match(/opacity:\s*(\d?\.?\d*)/)[1]) : element;
    }
    for (var property in styles)
      if (property == 'opacity') element.setOpacity(styles[property]);
      else
        elementStyle[(property == 'float' || property == 'cssFloat') ?
          (Object.isUndefined(elementStyle.styleFloat) ? 'cssFloat' : 'styleFloat') :
            property] = styles[property];

    return element;
  },

  setOpacity: function(element, value) {
    element = $(element);
    element.style.opacity = (value == 1 || value === '') ? '' :
      (value < 0.00001) ? 0 : value;
    return element;
  },

  getDimensions: function(element) {
    element = $(element);
    var display = $(element).getStyle('display');
    if (display != 'none' && display != null) // Safari bug
      return {width: element.offsetWidth, height: element.offsetHeight};

    // All *Width and *Height properties give 0 on elements with display none,
    // so enable the element temporarily
    var els = element.style;
    var originalVisibility = els.visibility;
    var originalPosition = els.position;
    var originalDisplay = els.display;
    els.visibility = 'hidden';
    els.position = 'absolute';
    els.display = 'block';
    var originalWidth = element.clientWidth;
    var originalHeight = element.clientHeight;
    els.display = originalDisplay;
    els.position = originalPosition;
    els.visibility = originalVisibility;
    return {width: originalWidth, height: originalHeight};
  },

  makePositioned: function(element) {
    element = $(element);
    var pos = Element.getStyle(element, 'position');
    if (pos == 'static' || !pos) {
      element._madePositioned = true;
      element.style.position = 'relative';
      // Opera returns the offset relative to the positioning context, when an
      // element is position relative but top and left have not been defined
      if (window.opera) {
        element.style.top = 0;
        element.style.left = 0;
      }
    }
    return element;
  },

  undoPositioned: function(element) {
    element = $(element);
    if (element._madePositioned) {
      element._madePositioned = undefined;
      element.style.position =
        element.style.top =
        element.style.left =
        element.style.bottom =
        element.style.right = '';
    }
    return element;
  },

  makeClipping: function(element) {
    element = $(element);
    if (element._overflow) return element;
    element._overflow = Element.getStyle(element, 'overflow') || 'auto';
    if (element._overflow !== 'hidden')
      element.style.overflow = 'hidden';
    return element;
  },

  undoClipping: function(element) {
    element = $(element);
    if (!element._overflow) return element;
    element.style.overflow = element._overflow == 'auto' ? '' : element._overflow;
    element._overflow = null;
    return element;
  },

  cumulativeOffset: function(element) {
    var valueT = 0, valueL = 0;
    do {
      valueT += element.offsetTop  || 0;
      valueL += element.offsetLeft || 0;
      element = element.offsetParent;
    } while (element);
    return Element._returnOffset(valueL, valueT);
  },

  positionedOffset: function(element) {
    var valueT = 0, valueL = 0;
    do {
      valueT += element.offsetTop  || 0;
      valueL += element.offsetLeft || 0;
      element = element.offsetParent;
      if (element) {
        if (element.tagName == 'BODY') break;
        var p = Element.getStyle(element, 'position');
        if (p == 'relative' || p == 'absolute') break;
      }
    } while (element);
    return Element._returnOffset(valueL, valueT);
  },

  absolutize: function(element) {
    element = $(element);
    if (element.getStyle('position') == 'absolute') return;
    // Position.prepare(); // To be done manually by Scripty when it needs it.

    var offsets = element.positionedOffset();
    var top     = offsets[1];
    var left    = offsets[0];
    var width   = element.clientWidth;
    var height  = element.clientHeight;

    element._originalLeft   = left - parseFloat(element.style.left  || 0);
    element._originalTop    = top  - parseFloat(element.style.top || 0);
    element._originalWidth  = element.style.width;
    element._originalHeight = element.style.height;

    element.style.position = 'absolute';
    element.style.top    = top + 'px';
    element.style.left   = left + 'px';
    element.style.width  = width + 'px';
    element.style.height = height + 'px';
    return element;
  },

  relativize: function(element) {
    element = $(element);
    if (element.getStyle('position') == 'relative') return;
    // Position.prepare(); // To be done manually by Scripty when it needs it.

    element.style.position = 'relative';
    var top  = parseFloat(element.style.top  || 0) - (element._originalTop || 0);
    var left = parseFloat(element.style.left || 0) - (element._originalLeft || 0);

    element.style.top    = top + 'px';
    element.style.left   = left + 'px';
    element.style.height = element._originalHeight;
    element.style.width  = element._originalWidth;
    return element;
  },

  cumulativeScrollOffset: function(element) {
    var valueT = 0, valueL = 0;
    do {
      valueT += element.scrollTop  || 0;
      valueL += element.scrollLeft || 0;
      element = element.parentNode;
    } while (element);
    return Element._returnOffset(valueL, valueT);
  },

  getOffsetParent: function(element) {
    if (element.offsetParent) return $(element.offsetParent);
    if (element == document.body) return $(element);

    while ((element = element.parentNode) && element != document.body)
      if (Element.getStyle(element, 'position') != 'static')
        return $(element);

    return $(document.body);
  },

  viewportOffset: function(forElement) {
    var valueT = 0, valueL = 0;

    var element = forElement;
    do {
      valueT += element.offsetTop  || 0;
      valueL += element.offsetLeft || 0;

      // Safari fix
      if (element.offsetParent == document.body &&
        Element.getStyle(element, 'position') == 'absolute') break;

    } while (element = element.offsetParent);

    element = forElement;
    do {
      if (!Prototype.Browser.Opera || element.tagName == 'BODY') {
        valueT -= element.scrollTop  || 0;
        valueL -= element.scrollLeft || 0;
      }
    } while (element = element.parentNode);

    return Element._returnOffset(valueL, valueT);
  },

  clonePosition: function(element, source) {
    var options = Object.extend({
      setLeft:    true,
      setTop:     true,
      setWidth:   true,
      setHeight:  true,
      offsetTop:  0,
      offsetLeft: 0
    }, arguments[2] || { });

    // find page position of source
    source = $(source);
    var p = source.viewportOffset();

    // find coordinate system to use
    element = $(element);
    var delta = [0, 0];
    var parent = null;
    // delta [0,0] will do fine with position: fixed elements,
    // position:absolute needs offsetParent deltas
    if (Element.getStyle(element, 'position') == 'absolute') {
      parent = element.getOffsetParent();
      delta = parent.viewportOffset();
    }

    // correct by body offsets (fixes Safari)
    if (parent == document.body) {
      delta[0] -= document.body.offsetLeft;
      delta[1] -= document.body.offsetTop;
    }

    // set position
    if (options.setLeft)   element.style.left  = (p[0] - delta[0] + options.offsetLeft) + 'px';
    if (options.setTop)    element.style.top   = (p[1] - delta[1] + options.offsetTop) + 'px';
    if (options.setWidth)  element.style.width = source.offsetWidth + 'px';
    if (options.setHeight) element.style.height = source.offsetHeight + 'px';
    return element;
  }
};

Element.Methods.identify.counter = 1;

Object.extend(Element.Methods, {
  getElementsBySelector: Element.Methods.select,
  childElements: Element.Methods.immediateDescendants
});

Element._attributeTranslations = {
  write: {
    names: {
      className: 'class',
      htmlFor:   'for'
    },
    values: { }
  }
};

if (Prototype.Browser.Opera) {
  Element.Methods.getStyle = Element.Methods.getStyle.wrap(
    function(proceed, element, style) {
      switch (style) {
        case 'left': case 'top': case 'right': case 'bottom':
          if (proceed(element, 'position') === 'static') return null;
        case 'height': case 'width':
          // returns '0px' for hidden elements; we want it to return null
          if (!Element.visible(element)) return null;

          // returns the border-box dimensions rather than the content-box
          // dimensions, so we subtract padding and borders from the value
          var dim = parseInt(proceed(element, style), 10);

          if (dim !== element['offset' + style.capitalize()])
            return dim + 'px';

          var properties;
          if (style === 'height') {
            properties = ['border-top-width', 'padding-top',
             'padding-bottom', 'border-bottom-width'];
          }
          else {
            properties = ['border-left-width', 'padding-left',
             'padding-right', 'border-right-width'];
          }
          return properties.inject(dim, function(memo, property) {
            var val = proceed(element, property);
            return val === null ? memo : memo - parseInt(val, 10);
          }) + 'px';
        default: return proceed(element, style);
      }
    }
  );

  Element.Methods.readAttribute = Element.Methods.readAttribute.wrap(
    function(proceed, element, attribute) {
      if (attribute === 'title') return element.title;
      return proceed(element, attribute);
    }
  );
}

else if (Prototype.Browser.IE) {
  $w('positionedOffset getOffsetParent viewportOffset').each(function(method) {
    Element.Methods[method] = Element.Methods[method].wrap(
      function(proceed, element) {
        element = $(element);
        var position = element.getStyle('position');
        if (position != 'static') return proceed(element);
        element.setStyle({ position: 'relative' });
        var value = proceed(element);
        element.setStyle({ position: position });
        return value;
      }
    );
  });

  Element.Methods.getStyle = function(element, style) {
    element = $(element);
    style = (style == 'float' || style == 'cssFloat') ? 'styleFloat' : style.camelize();
    var value = element.style[style];
    if (!value && element.currentStyle) value = element.currentStyle[style];

    if (style == 'opacity') {
      if (value = (element.getStyle('filter') || '').match(/alpha\(opacity=(.*)\)/))
        if (value[1]) return parseFloat(value[1]) / 100;
      return 1.0;
    }

    if (value == 'auto') {
      if ((style == 'width' || style == 'height') && (element.getStyle('display') != 'none'))
        return element['offset' + style.capitalize()] + 'px';
      return null;
    }
    return value;
  };

  Element.Methods.setOpacity = function(element, value) {
    function stripAlpha(filter){
      return filter.replace(/alpha\([^\)]*\)/gi,'');
    }
    element = $(element);
    var currentStyle = element.currentStyle;
    if ((currentStyle && !currentStyle.hasLayout) ||
      (!currentStyle && element.style.zoom == 'normal'))
        element.style.zoom = 1;

    var filter = element.getStyle('filter'), style = element.style;
    if (value == 1 || value === '') {
      (filter = stripAlpha(filter)) ?
        style.filter = filter : style.removeAttribute('filter');
      return element;
    } else if (value < 0.00001) value = 0;
    style.filter = stripAlpha(filter) +
      'alpha(opacity=' + (value * 100) + ')';
    return element;
  };

  Element._attributeTranslations = {
    read: {
      names: {
        'class': 'className',
        'for':   'htmlFor'
      },
      values: {
        _getAttr: function(element, attribute) {
          return element.getAttribute(attribute, 2);
        },
        _getAttrNode: function(element, attribute) {
          var node = element.getAttributeNode(attribute);
          return node ? node.value : "";
        },
        _getEv: function(element, attribute) {
          attribute = element.getAttribute(attribute);
          return attribute ? attribute.toString().slice(23, -2) : null;
        },
        _flag: function(element, attribute) {
          return $(element).hasAttribute(attribute) ? attribute : null;
        },
        style: function(element) {
          return element.style.cssText.toLowerCase();
        },
        title: function(element) {
          return element.title;
        }
      }
    }
  };

  Element._attributeTranslations.write = {
    names: Object.clone(Element._attributeTranslations.read.names),
    values: {
      checked: function(element, value) {
        element.checked = !!value;
      },

      style: function(element, value) {
        element.style.cssText = value ? value : '';
      }
    }
  };

  Element._attributeTranslations.has = {};

  $w('colSpan rowSpan vAlign dateTime accessKey tabIndex ' +
      'encType maxLength readOnly longDesc').each(function(attr) {
    Element._attributeTranslations.write.names[attr.toLowerCase()] = attr;
    Element._attributeTranslations.has[attr.toLowerCase()] = attr;
  });

  (function(v) {
    Object.extend(v, {
      href:        v._getAttr,
      src:         v._getAttr,
      type:        v._getAttr,
      action:      v._getAttrNode,
      disabled:    v._flag,
      checked:     v._flag,
      readonly:    v._flag,
      multiple:    v._flag,
      onload:      v._getEv,
      onunload:    v._getEv,
      onclick:     v._getEv,
      ondblclick:  v._getEv,
      onmousedown: v._getEv,
      onmouseup:   v._getEv,
      onmouseover: v._getEv,
      onmousemove: v._getEv,
      onmouseout:  v._getEv,
      onfocus:     v._getEv,
      onblur:      v._getEv,
      onkeypress:  v._getEv,
      onkeydown:   v._getEv,
      onkeyup:     v._getEv,
      onsubmit:    v._getEv,
      onreset:     v._getEv,
      onselect:    v._getEv,
      onchange:    v._getEv
    });
  })(Element._attributeTranslations.read.values);
}

else if (Prototype.Browser.Gecko && /rv:1\.8\.0/.test(navigator.userAgent)) {
  Element.Methods.setOpacity = function(element, value) {
    element = $(element);
    element.style.opacity = (value == 1) ? 0.999999 :
      (value === '') ? '' : (value < 0.00001) ? 0 : value;
    return element;
  };
}

else if (Prototype.Browser.WebKit) {
  Element.Methods.setOpacity = function(element, value) {
    element = $(element);
    element.style.opacity = (value == 1 || value === '') ? '' :
      (value < 0.00001) ? 0 : value;

    if (value == 1)
      if(element.tagName == 'IMG' && element.width) {
        element.width++; element.width--;
      } else try {
        var n = document.createTextNode(' ');
        element.appendChild(n);
        element.removeChild(n);
      } catch (e) { }

    return element;
  };

  // Safari returns margins on body which is incorrect if the child is absolutely
  // positioned.  For performance reasons, redefine Element#cumulativeOffset for
  // KHTML/WebKit only.
  Element.Methods.cumulativeOffset = function(element) {
    var valueT = 0, valueL = 0;
    do {
      valueT += element.offsetTop  || 0;
      valueL += element.offsetLeft || 0;
      if (element.offsetParent == document.body)
        if (Element.getStyle(element, 'position') == 'absolute') break;

      element = element.offsetParent;
    } while (element);

    return Element._returnOffset(valueL, valueT);
  };
}

if (Prototype.Browser.IE || Prototype.Browser.Opera) {
  // IE and Opera are missing .innerHTML support for TABLE-related and SELECT elements
  Element.Methods.update = function(element, content) {
    element = $(element);

    if (content && content.toElement) content = content.toElement();
    if (Object.isElement(content)) return element.update().insert(content);

    content = Object.toHTML(content);
    var tagName = element.tagName.toUpperCase();

    if (tagName in Element._insertionTranslations.tags) {
      $A(element.childNodes).each(function(node) { element.removeChild(node) });
      Element._getContentFromAnonymousElement(tagName, content.stripScripts())
        .each(function(node) { element.appendChild(node) });
    }
    else element.innerHTML = content.stripScripts();

    content.evalScripts.bind(content).defer();
    return element;
  };
}

if (document.createElement('div').outerHTML) {
  Element.Methods.replace = function(element, content) {
    element = $(element);

    if (content && content.toElement) content = content.toElement();
    if (Object.isElement(content)) {
      element.parentNode.replaceChild(content, element);
      return element;
    }

    content = Object.toHTML(content);
    var parent = element.parentNode, tagName = parent.tagName.toUpperCase();

    if (Element._insertionTranslations.tags[tagName]) {
      var nextSibling = element.next();
      var fragments = Element._getContentFromAnonymousElement(tagName, content.stripScripts());
      parent.removeChild(element);
      if (nextSibling)
        fragments.each(function(node) { parent.insertBefore(node, nextSibling) });
      else
        fragments.each(function(node) { parent.appendChild(node) });
    }
    else element.outerHTML = content.stripScripts();

    content.evalScripts.bind(content).defer();
    return element;
  };
}

Element._returnOffset = function(l, t) {
  var result = [l, t];
  result.left = l;
  result.top = t;
  return result;
};

Element._getContentFromAnonymousElement = function(tagName, html) {
  var div = new Element('div'), t = Element._insertionTranslations.tags[tagName];
  if (t) {
    div.innerHTML = t[0] + html + t[1];
    t[2].times(function() { div = div.firstChild });
  } else div.innerHTML = html;
  return $A(div.childNodes);
};

Element._insertionTranslations = {
  before: function(element, node) {
    element.parentNode.insertBefore(node, element);
  },
  top: function(element, node) {
    element.insertBefore(node, element.firstChild);
  },
  bottom: function(element, node) {
    element.appendChild(node);
  },
  after: function(element, node) {
    element.parentNode.insertBefore(node, element.nextSibling);
  },
  tags: {
    TABLE:  ['<table>',                '</table>',                   1],
    TBODY:  ['<table><tbody>',         '</tbody></table>',           2],
    TR:     ['<table><tbody><tr>',     '</tr></tbody></table>',      3],
    TD:     ['<table><tbody><tr><td>', '</td></tr></tbody></table>', 4],
    SELECT: ['<select>',               '</select>',                  1]
  }
};

(function() {
  Object.extend(this.tags, {
    THEAD: this.tags.TBODY,
    TFOOT: this.tags.TBODY,
    TH:    this.tags.TD
  });
}).call(Element._insertionTranslations);

Element.Methods.Simulated = {
  hasAttribute: function(element, attribute) {
    attribute = Element._attributeTranslations.has[attribute] || attribute;
    var node = $(element).getAttributeNode(attribute);
    return node && node.specified;
  }
};

Element.Methods.ByTag = { };

Object.extend(Element, Element.Methods);

if (!Prototype.BrowserFeatures.ElementExtensions &&
    document.createElement('div').__proto__) {
  window.HTMLElement = { };
  window.HTMLElement.prototype = document.createElement('div').__proto__;
  Prototype.BrowserFeatures.ElementExtensions = true;
}

Element.extend = (function() {
  if (Prototype.BrowserFeatures.SpecificElementExtensions)
    return Prototype.K;

  var Methods = { }, ByTag = Element.Methods.ByTag;

  var extend = Object.extend(function(element) {
    if (!element || element._extendedByPrototype ||
        element.nodeType != 1 || element == window) return element;

    var methods = Object.clone(Methods),
      tagName = element.tagName, property, value;

    // extend methods for specific tags
    if (ByTag[tagName]) Object.extend(methods, ByTag[tagName]);

    for (property in methods) {
      value = methods[property];
      if (Object.isFunction(value) && !(property in element))
        element[property] = value.methodize();
    }

    element._extendedByPrototype = Prototype.emptyFunction;
    return element;

  }, {
    refresh: function() {
      // extend methods for all tags (Safari doesn't need this)
      if (!Prototype.BrowserFeatures.ElementExtensions) {
        Object.extend(Methods, Element.Methods);
        Object.extend(Methods, Element.Methods.Simulated);
      }
    }
  });

  extend.refresh();
  return extend;
})();

Element.hasAttribute = function(element, attribute) {
  if (element.hasAttribute) return element.hasAttribute(attribute);
  return Element.Methods.Simulated.hasAttribute(element, attribute);
};

Element.addMethods = function(methods) {
  var F = Prototype.BrowserFeatures, T = Element.Methods.ByTag;

  if (!methods) {
    Object.extend(Form, Form.Methods);
    Object.extend(Form.Element, Form.Element.Methods);
    Object.extend(Element.Methods.ByTag, {
      "FORM":     Object.clone(Form.Methods),
      "INPUT":    Object.clone(Form.Element.Methods),
      "SELECT":   Object.clone(Form.Element.Methods),
      "TEXTAREA": Object.clone(Form.Element.Methods)
    });
  }

  if (arguments.length == 2) {
    var tagName = methods;
    methods = arguments[1];
  }

  if (!tagName) Object.extend(Element.Methods, methods || { });
  else {
    if (Object.isArray(tagName)) tagName.each(extend);
    else extend(tagName);
  }

  function extend(tagName) {
    tagName = tagName.toUpperCase();
    if (!Element.Methods.ByTag[tagName])
      Element.Methods.ByTag[tagName] = { };
    Object.extend(Element.Methods.ByTag[tagName], methods);
  }

  function copy(methods, destination, onlyIfAbsent) {
    onlyIfAbsent = onlyIfAbsent || false;
    for (var property in methods) {
      var value = methods[property];
      if (!Object.isFunction(value)) continue;
      if (!onlyIfAbsent || !(property in destination))
        destination[property] = value.methodize();
    }
  }

  function findDOMClass(tagName) {
    var klass;
    var trans = {
      "OPTGROUP": "OptGroup", "TEXTAREA": "TextArea", "P": "Paragraph",
      "FIELDSET": "FieldSet", "UL": "UList", "OL": "OList", "DL": "DList",
      "DIR": "Directory", "H1": "Heading", "H2": "Heading", "H3": "Heading",
      "H4": "Heading", "H5": "Heading", "H6": "Heading", "Q": "Quote",
      "INS": "Mod", "DEL": "Mod", "A": "Anchor", "IMG": "Image", "CAPTION":
      "TableCaption", "COL": "TableCol", "COLGROUP": "TableCol", "THEAD":
      "TableSection", "TFOOT": "TableSection", "TBODY": "TableSection", "TR":
      "TableRow", "TH": "TableCell", "TD": "TableCell", "FRAMESET":
      "FrameSet", "IFRAME": "IFrame"
    };
    if (trans[tagName]) klass = 'HTML' + trans[tagName] + 'Element';
    if (window[klass]) return window[klass];
    klass = 'HTML' + tagName + 'Element';
    if (window[klass]) return window[klass];
    klass = 'HTML' + tagName.capitalize() + 'Element';
    if (window[klass]) return window[klass];

    window[klass] = { };
    window[klass].prototype = document.createElement(tagName).__proto__;
    return window[klass];
  }

  if (F.ElementExtensions) {
    copy(Element.Methods, HTMLElement.prototype);
    copy(Element.Methods.Simulated, HTMLElement.prototype, true);
  }

  if (F.SpecificElementExtensions) {
    for (var tag in Element.Methods.ByTag) {
      var klass = findDOMClass(tag);
      if (Object.isUndefined(klass)) continue;
      copy(T[tag], klass.prototype);
    }
  }

  Object.extend(Element, Element.Methods);
  delete Element.ByTag;

  if (Element.extend.refresh) Element.extend.refresh();
  Element.cache = { };
};

document.viewport = {
  getDimensions: function() {
    var dimensions = { };
    var B = Prototype.Browser;
    $w('width height').each(function(d) {
      var D = d.capitalize();
      dimensions[d] = (B.WebKit && !document.evaluate) ? self['inner' + D] :
        (B.Opera) ? document.body['client' + D] : document.documentElement['client' + D];
    });
    return dimensions;
  },

  getWidth: function() {
    return this.getDimensions().width;
  },

  getHeight: function() {
    return this.getDimensions().height;
  },

  getScrollOffsets: function() {
    return Element._returnOffset(
      window.pageXOffset || document.documentElement.scrollLeft || document.body.scrollLeft,
      window.pageYOffset || document.documentElement.scrollTop || document.body.scrollTop);
  }
};
/* Portions of the Selector class are derived from Jack Slocum’s DomQuery,
 * part of YUI-Ext version 0.40, distributed under the terms of an MIT-style
 * license.  Please see http://www.yui-ext.com/ for more information. */

var Selector = Class.create({
  initialize: function(expression) {
    this.expression = expression.strip();
    this.compileMatcher();
  },

  shouldUseXPath: function() {
    if (!Prototype.BrowserFeatures.XPath) return false;

    var e = this.expression;

    // Safari 3 chokes on :*-of-type and :empty
    if (Prototype.Browser.WebKit &&
     (e.include("-of-type") || e.include(":empty")))
      return false;

    // XPath can't do namespaced attributes, nor can it read
    // the "checked" property from DOM nodes
    if ((/(\[[\w-]*?:|:checked)/).test(this.expression))
      return false;

    return true;
  },

  compileMatcher: function() {
    if (this.shouldUseXPath())
      return this.compileXPathMatcher();

    var e = this.expression, ps = Selector.patterns, h = Selector.handlers,
        c = Selector.criteria, le, p, m;

    if (Selector._cache[e]) {
      this.matcher = Selector._cache[e];
      return;
    }

    this.matcher = ["this.matcher = function(root) {",
                    "var r = root, h = Selector.handlers, c = false, n;"];

    while (e && le != e && (/\S/).test(e)) {
      le = e;
      for (var i in ps) {
        p = ps[i];
        if (m = e.match(p)) {
          this.matcher.push(Object.isFunction(c[i]) ? c[i](m) :
    	      new Template(c[i]).evaluate(m));
          e = e.replace(m[0], '');
          break;
        }
      }
    }

    this.matcher.push("return h.unique(n);\n}");
    eval(this.matcher.join('\n'));
    Selector._cache[this.expression] = this.matcher;
  },

  compileXPathMatcher: function() {
    var e = this.expression, ps = Selector.patterns,
        x = Selector.xpath, le, m;

    if (Selector._cache[e]) {
      this.xpath = Selector._cache[e]; return;
    }

    this.matcher = ['.//*'];
    while (e && le != e && (/\S/).test(e)) {
      le = e;
      for (var i in ps) {
        if (m = e.match(ps[i])) {
          this.matcher.push(Object.isFunction(x[i]) ? x[i](m) :
            new Template(x[i]).evaluate(m));
          e = e.replace(m[0], '');
          break;
        }
      }
    }

    this.xpath = this.matcher.join('');
    Selector._cache[this.expression] = this.xpath;
  },

  findElements: function(root) {
    root = root || document;
    if (this.xpath) return document._getElementsByXPath(this.xpath, root);
    return this.matcher(root);
  },

  match: function(element) {
    this.tokens = [];

    var e = this.expression, ps = Selector.patterns, as = Selector.assertions;
    var le, p, m;

    while (e && le !== e && (/\S/).test(e)) {
      le = e;
      for (var i in ps) {
        p = ps[i];
        if (m = e.match(p)) {
          // use the Selector.assertions methods unless the selector
          // is too complex.
          if (as[i]) {
            this.tokens.push([i, Object.clone(m)]);
            e = e.replace(m[0], '');
          } else {
            // reluctantly do a document-wide search
            // and look for a match in the array
            return this.findElements(document).include(element);
          }
        }
      }
    }

    var match = true, name, matches;
    for (var i = 0, token; token = this.tokens[i]; i++) {
      name = token[0], matches = token[1];
      if (!Selector.assertions[name](element, matches)) {
        match = false; break;
      }
    }

    return match;
  },

  toString: function() {
    return this.expression;
  },

  inspect: function() {
    return "#<Selector:" + this.expression.inspect() + ">";
  }
});

Object.extend(Selector, {
  _cache: { },

  xpath: {
    descendant:   "//*",
    child:        "/*",
    adjacent:     "/following-sibling::*[1]",
    laterSibling: '/following-sibling::*',
    tagName:      function(m) {
      if (m[1] == '*') return '';
      return "[local-name()='" + m[1].toLowerCase() +
             "' or local-name()='" + m[1].toUpperCase() + "']";
    },
    className:    "[contains(concat(' ', @class, ' '), ' #{1} ')]",
    id:           "[@id='#{1}']",
    attrPresence: function(m) {
      m[1] = m[1].toLowerCase();
      return new Template("[@#{1}]").evaluate(m);
    },
    attr: function(m) {
      m[1] = m[1].toLowerCase();
      m[3] = m[5] || m[6];
      return new Template(Selector.xpath.operators[m[2]]).evaluate(m);
    },
    pseudo: function(m) {
      var h = Selector.xpath.pseudos[m[1]];
      if (!h) return '';
      if (Object.isFunction(h)) return h(m);
      return new Template(Selector.xpath.pseudos[m[1]]).evaluate(m);
    },
    operators: {
      '=':  "[@#{1}='#{3}']",
      '!=': "[@#{1}!='#{3}']",
      '^=': "[starts-with(@#{1}, '#{3}')]",
      '$=': "[substring(@#{1}, (string-length(@#{1}) - string-length('#{3}') + 1))='#{3}']",
      '*=': "[contains(@#{1}, '#{3}')]",
      '~=': "[contains(concat(' ', @#{1}, ' '), ' #{3} ')]",
      '|=': "[contains(concat('-', @#{1}, '-'), '-#{3}-')]"
    },
    pseudos: {
      'first-child': '[not(preceding-sibling::*)]',
      'last-child':  '[not(following-sibling::*)]',
      'only-child':  '[not(preceding-sibling::* or following-sibling::*)]',
      'empty':       "[count(*) = 0 and (count(text()) = 0 or translate(text(), ' \t\r\n', '') = '')]",
      'checked':     "[@checked]",
      'disabled':    "[@disabled]",
      'enabled':     "[not(@disabled)]",
      'not': function(m) {
        var e = m[6], p = Selector.patterns,
            x = Selector.xpath, le, v;

        var exclusion = [];
        while (e && le != e && (/\S/).test(e)) {
          le = e;
          for (var i in p) {
            if (m = e.match(p[i])) {
              v = Object.isFunction(x[i]) ? x[i](m) : new Template(x[i]).evaluate(m);
              exclusion.push("(" + v.substring(1, v.length - 1) + ")");
              e = e.replace(m[0], '');
              break;
            }
          }
        }
        return "[not(" + exclusion.join(" and ") + ")]";
      },
      'nth-child':      function(m) {
        return Selector.xpath.pseudos.nth("(count(./preceding-sibling::*) + 1) ", m);
      },
      'nth-last-child': function(m) {
        return Selector.xpath.pseudos.nth("(count(./following-sibling::*) + 1) ", m);
      },
      'nth-of-type':    function(m) {
        return Selector.xpath.pseudos.nth("position() ", m);
      },
      'nth-last-of-type': function(m) {
        return Selector.xpath.pseudos.nth("(last() + 1 - position()) ", m);
      },
      'first-of-type':  function(m) {
        m[6] = "1"; return Selector.xpath.pseudos['nth-of-type'](m);
      },
      'last-of-type':   function(m) {
        m[6] = "1"; return Selector.xpath.pseudos['nth-last-of-type'](m);
      },
      'only-of-type':   function(m) {
        var p = Selector.xpath.pseudos; return p['first-of-type'](m) + p['last-of-type'](m);
      },
      nth: function(fragment, m) {
        var mm, formula = m[6], predicate;
        if (formula == 'even') formula = '2n+0';
        if (formula == 'odd')  formula = '2n+1';
        if (mm = formula.match(/^(\d+)$/)) // digit only
          return '[' + fragment + "= " + mm[1] + ']';
        if (mm = formula.match(/^(-?\d*)?n(([+-])(\d+))?/)) { // an+b
          if (mm[1] == "-") mm[1] = -1;
          var a = mm[1] ? Number(mm[1]) : 1;
          var b = mm[2] ? Number(mm[2]) : 0;
          predicate = "[((#{fragment} - #{b}) mod #{a} = 0) and " +
          "((#{fragment} - #{b}) div #{a} >= 0)]";
          return new Template(predicate).evaluate({
            fragment: fragment, a: a, b: b });
        }
      }
    }
  },

  criteria: {
    tagName:      'n = h.tagName(n, r, "#{1}", c);   c = false;',
    className:    'n = h.className(n, r, "#{1}", c); c = false;',
    id:           'n = h.id(n, r, "#{1}", c);        c = false;',
    attrPresence: 'n = h.attrPresence(n, r, "#{1}"); c = false;',
    attr: function(m) {
      m[3] = (m[5] || m[6]);
      return new Template('n = h.attr(n, r, "#{1}", "#{3}", "#{2}"); c = false;').evaluate(m);
    },
    pseudo: function(m) {
      if (m[6]) m[6] = m[6].replace(/"/g, '\\"');
      return new Template('n = h.pseudo(n, "#{1}", "#{6}", r, c); c = false;').evaluate(m);
    },
    descendant:   'c = "descendant";',
    child:        'c = "child";',
    adjacent:     'c = "adjacent";',
    laterSibling: 'c = "laterSibling";'
  },

  patterns: {
    // combinators must be listed first
    // (and descendant needs to be last combinator)
    laterSibling: /^\s*~\s*/,
    child:        /^\s*>\s*/,
    adjacent:     /^\s*\+\s*/,
    descendant:   /^\s/,

    // selectors follow
    tagName:      /^\s*(\*|[\w\-]+)(\b|$)?/,
    id:           /^#([\w\-\*]+)(\b|$)/,
    className:    /^\.([\w\-\*]+)(\b|$)/,
    pseudo:
/^:((first|last|nth|nth-last|only)(-child|-of-type)|empty|checked|(en|dis)abled|not)(\((.*?)\))?(\b|$|(?=\s|[:+~>]))/,
    attrPresence: /^\[([\w]+)\]/,
    attr:         /\[((?:[\w-]*:)?[\w-]+)\s*(?:([!^$*~|]?=)\s*((['"])([^\4]*?)\4|([^'"][^\]]*?)))?\]/
  },

  // for Selector.match and Element#match
  assertions: {
    tagName: function(element, matches) {
      return matches[1].toUpperCase() == element.tagName.toUpperCase();
    },

    className: function(element, matches) {
      return Element.hasClassName(element, matches[1]);
    },

    id: function(element, matches) {
      return element.id === matches[1];
    },

    attrPresence: function(element, matches) {
      return Element.hasAttribute(element, matches[1]);
    },

    attr: function(element, matches) {
      var nodeValue = Element.readAttribute(element, matches[1]);
      return Selector.operators[matches[2]](nodeValue, matches[3]);
    }
  },

  handlers: {
    // UTILITY FUNCTIONS
    // joins two collections
    concat: function(a, b) {
      for (var i = 0, node; node = b[i]; i++)
        a.push(node);
      return a;
    },

    // marks an array of nodes for counting
    mark: function(nodes) {
      for (var i = 0, node; node = nodes[i]; i++)
        node._counted = true;
      return nodes;
    },

    unmark: function(nodes) {
      for (var i = 0, node; node = nodes[i]; i++)
        node._counted = undefined;
      return nodes;
    },

    // mark each child node with its position (for nth calls)
    // "ofType" flag indicates whether we're indexing for nth-of-type
    // rather than nth-child
    index: function(parentNode, reverse, ofType) {
      parentNode._counted = true;
      if (reverse) {
        for (var nodes = parentNode.childNodes, i = nodes.length - 1, j = 1; i >= 0; i--) {
          var node = nodes[i];
          if (node.nodeType == 1 && (!ofType || node._counted)) node.nodeIndex = j++;
        }
      } else {
        for (var i = 0, j = 1, nodes = parentNode.childNodes; node = nodes[i]; i++)
          if (node.nodeType == 1 && (!ofType || node._counted)) node.nodeIndex = j++;
      }
    },

    // filters out duplicates and extends all nodes
    unique: function(nodes) {
      if (nodes.length == 0) return nodes;
      var results = [], n;
      for (var i = 0, l = nodes.length; i < l; i++)
        if (!(n = nodes[i])._counted) {
          n._counted = true;
          results.push(Element.extend(n));
        }
      return Selector.handlers.unmark(results);
    },

    // COMBINATOR FUNCTIONS
    descendant: function(nodes) {
      var h = Selector.handlers;
      for (var i = 0, results = [], node; node = nodes[i]; i++)
        h.concat(results, node.getElementsByTagName('*'));
      return results;
    },

    child: function(nodes) {
      var h = Selector.handlers;
      for (var i = 0, results = [], node; node = nodes[i]; i++) {
        for (var j = 0, child; child = node.childNodes[j]; j++)
          if (child.nodeType == 1 && child.tagName != '!') results.push(child);
      }
      return results;
    },

    adjacent: function(nodes) {
      for (var i = 0, results = [], node; node = nodes[i]; i++) {
        var next = this.nextElementSibling(node);
        if (next) results.push(next);
      }
      return results;
    },

    laterSibling: function(nodes) {
      var h = Selector.handlers;
      for (var i = 0, results = [], node; node = nodes[i]; i++)
        h.concat(results, Element.nextSiblings(node));
      return results;
    },

    nextElementSibling: function(node) {
      while (node = node.nextSibling)
	      if (node.nodeType == 1) return node;
      return null;
    },

    previousElementSibling: function(node) {
      while (node = node.previousSibling)
        if (node.nodeType == 1) return node;
      return null;
    },

    // TOKEN FUNCTIONS
    tagName: function(nodes, root, tagName, combinator) {
      var uTagName = tagName.toUpperCase();
      var results = [], h = Selector.handlers;
      if (nodes) {
        if (combinator) {
          // fastlane for ordinary descendant combinators
          if (combinator == "descendant") {
            for (var i = 0, node; node = nodes[i]; i++)
              h.concat(results, node.getElementsByTagName(tagName));
            return results;
          } else nodes = this[combinator](nodes);
          if (tagName == "*") return nodes;
        }
        for (var i = 0, node; node = nodes[i]; i++)
          if (node.tagName.toUpperCase() === uTagName) results.push(node);
        return results;
      } else return root.getElementsByTagName(tagName);
    },

    id: function(nodes, root, id, combinator) {
      var targetNode = $(id), h = Selector.handlers;
      if (!targetNode) return [];
      if (!nodes && root == document) return [targetNode];
      if (nodes) {
        if (combinator) {
          if (combinator == 'child') {
            for (var i = 0, node; node = nodes[i]; i++)
              if (targetNode.parentNode == node) return [targetNode];
          } else if (combinator == 'descendant') {
            for (var i = 0, node; node = nodes[i]; i++)
              if (Element.descendantOf(targetNode, node)) return [targetNode];
          } else if (combinator == 'adjacent') {
            for (var i = 0, node; node = nodes[i]; i++)
              if (Selector.handlers.previousElementSibling(targetNode) == node)
                return [targetNode];
          } else nodes = h[combinator](nodes);
        }
        for (var i = 0, node; node = nodes[i]; i++)
          if (node == targetNode) return [targetNode];
        return [];
      }
      return (targetNode && Element.descendantOf(targetNode, root)) ? [targetNode] : [];
    },

    className: function(nodes, root, className, combinator) {
      if (nodes && combinator) nodes = this[combinator](nodes);
      return Selector.handlers.byClassName(nodes, root, className);
    },

    byClassName: function(nodes, root, className) {
      if (!nodes) nodes = Selector.handlers.descendant([root]);
      var needle = ' ' + className + ' ';
      for (var i = 0, results = [], node, nodeClassName; node = nodes[i]; i++) {
        nodeClassName = node.className;
        if (nodeClassName.length == 0) continue;
        if (nodeClassName == className || (' ' + nodeClassName + ' ').include(needle))
          results.push(node);
      }
      return results;
    },

    attrPresence: function(nodes, root, attr) {
      if (!nodes) nodes = root.getElementsByTagName("*");
      var results = [];
      for (var i = 0, node; node = nodes[i]; i++)
        if (Element.hasAttribute(node, attr)) results.push(node);
      return results;
    },

    attr: function(nodes, root, attr, value, operator) {
      if (!nodes) nodes = root.getElementsByTagName("*");
      var handler = Selector.operators[operator], results = [];
      for (var i = 0, node; node = nodes[i]; i++) {
        var nodeValue = Element.readAttribute(node, attr);
        if (nodeValue === null) continue;
        if (handler(nodeValue, value)) results.push(node);
      }
      return results;
    },

    pseudo: function(nodes, name, value, root, combinator) {
      if (nodes && combinator) nodes = this[combinator](nodes);
      if (!nodes) nodes = root.getElementsByTagName("*");
      return Selector.pseudos[name](nodes, value, root);
    }
  },

  pseudos: {
    'first-child': function(nodes, value, root) {
      for (var i = 0, results = [], node; node = nodes[i]; i++) {
        if (Selector.handlers.previousElementSibling(node)) continue;
          results.push(node);
      }
      return results;
    },
    'last-child': function(nodes, value, root) {
      for (var i = 0, results = [], node; node = nodes[i]; i++) {
        if (Selector.handlers.nextElementSibling(node)) continue;
          results.push(node);
      }
      return results;
    },
    'only-child': function(nodes, value, root) {
      var h = Selector.handlers;
      for (var i = 0, results = [], node; node = nodes[i]; i++)
        if (!h.previousElementSibling(node) && !h.nextElementSibling(node))
          results.push(node);
      return results;
    },
    'nth-child':        function(nodes, formula, root) {
      return Selector.pseudos.nth(nodes, formula, root);
    },
    'nth-last-child':   function(nodes, formula, root) {
      return Selector.pseudos.nth(nodes, formula, root, true);
    },
    'nth-of-type':      function(nodes, formula, root) {
      return Selector.pseudos.nth(nodes, formula, root, false, true);
    },
    'nth-last-of-type': function(nodes, formula, root) {
      return Selector.pseudos.nth(nodes, formula, root, true, true);
    },
    'first-of-type':    function(nodes, formula, root) {
      return Selector.pseudos.nth(nodes, "1", root, false, true);
    },
    'last-of-type':     function(nodes, formula, root) {
      return Selector.pseudos.nth(nodes, "1", root, true, true);
    },
    'only-of-type':     function(nodes, formula, root) {
      var p = Selector.pseudos;
      return p['last-of-type'](p['first-of-type'](nodes, formula, root), formula, root);
    },

    // handles the an+b logic
    getIndices: function(a, b, total) {
      if (a == 0) return b > 0 ? [b] : [];
      return $R(1, total).inject([], function(memo, i) {
        if (0 == (i - b) % a && (i - b) / a >= 0) memo.push(i);
        return memo;
      });
    },

    // handles nth(-last)-child, nth(-last)-of-type, and (first|last)-of-type
    nth: function(nodes, formula, root, reverse, ofType) {
      if (nodes.length == 0) return [];
      if (formula == 'even') formula = '2n+0';
      if (formula == 'odd')  formula = '2n+1';
      var h = Selector.handlers, results = [], indexed = [], m;
      h.mark(nodes);
      for (var i = 0, node; node = nodes[i]; i++) {
        if (!node.parentNode._counted) {
          h.index(node.parentNode, reverse, ofType);
          indexed.push(node.parentNode);
        }
      }
      if (formula.match(/^\d+$/)) { // just a number
        formula = Number(formula);
        for (var i = 0, node; node = nodes[i]; i++)
          if (node.nodeIndex == formula) results.push(node);
      } else if (m = formula.match(/^(-?\d*)?n(([+-])(\d+))?/)) { // an+b
        if (m[1] == "-") m[1] = -1;
        var a = m[1] ? Number(m[1]) : 1;
        var b = m[2] ? Number(m[2]) : 0;
        var indices = Selector.pseudos.getIndices(a, b, nodes.length);
        for (var i = 0, node, l = indices.length; node = nodes[i]; i++) {
          for (var j = 0; j < l; j++)
            if (node.nodeIndex == indices[j]) results.push(node);
        }
      }
      h.unmark(nodes);
      h.unmark(indexed);
      return results;
    },

    'empty': function(nodes, value, root) {
      for (var i = 0, results = [], node; node = nodes[i]; i++) {
        // IE treats comments as element nodes
        if (node.tagName == '!' || (node.firstChild && !node.innerHTML.match(/^\s*$/))) continue;
        results.push(node);
      }
      return results;
    },

    'not': function(nodes, selector, root) {
      var h = Selector.handlers, selectorType, m;
      var exclusions = new Selector(selector).findElements(root);
      h.mark(exclusions);
      for (var i = 0, results = [], node; node = nodes[i]; i++)
        if (!node._counted) results.push(node);
      h.unmark(exclusions);
      return results;
    },

    'enabled': function(nodes, value, root) {
      for (var i = 0, results = [], node; node = nodes[i]; i++)
        if (!node.disabled) results.push(node);
      return results;
    },

    'disabled': function(nodes, value, root) {
      for (var i = 0, results = [], node; node = nodes[i]; i++)
        if (node.disabled) results.push(node);
      return results;
    },

    'checked': function(nodes, value, root) {
      for (var i = 0, results = [], node; node = nodes[i]; i++)
        if (node.checked) results.push(node);
      return results;
    }
  },

  operators: {
    '=':  function(nv, v) { return nv == v; },
    '!=': function(nv, v) { return nv != v; },
    '^=': function(nv, v) { return nv.startsWith(v); },
    '$=': function(nv, v) { return nv.endsWith(v); },
    '*=': function(nv, v) { return nv.include(v); },
    '~=': function(nv, v) { return (' ' + nv + ' ').include(' ' + v + ' '); },
    '|=': function(nv, v) { return ('-' + nv.toUpperCase() + '-').include('-' + v.toUpperCase() + '-'); }
  },

  matchElements: function(elements, expression) {
    var matches = new Selector(expression).findElements(), h = Selector.handlers;
    h.mark(matches);
    for (var i = 0, results = [], element; element = elements[i]; i++)
      if (element._counted) results.push(element);
    h.unmark(matches);
    return results;
  },

  findElement: function(elements, expression, index) {
    if (Object.isNumber(expression)) {
      index = expression; expression = false;
    }
    return Selector.matchElements(elements, expression || '*')[index || 0];
  },

  findChildElements: function(element, expressions) {
    var exprs = expressions.join(',');
    expressions = [];
    exprs.scan(/(([\w#:.~>+()\s-]+|\*|\[.*?\])+)\s*(,|$)/, function(m) {
      expressions.push(m[1].strip());
    });
    var results = [], h = Selector.handlers;
    for (var i = 0, l = expressions.length, selector; i < l; i++) {
      selector = new Selector(expressions[i].strip());
      h.concat(results, selector.findElements(element));
    }
    return (l > 1) ? h.unique(results) : results;
  }
});

if (Prototype.Browser.IE) {
  // IE returns comment nodes on getElementsByTagName("*").
  // Filter them out.
  Selector.handlers.concat = function(a, b) {
    for (var i = 0, node; node = b[i]; i++)
      if (node.tagName !== "!") a.push(node);
    return a;
  };
}

function $$() {
  return Selector.findChildElements(document, $A(arguments));
}
var Form = {
  reset: function(form) {
    $(form).reset();
    return form;
  },

  serializeElements: function(elements, options) {
    if (typeof options != 'object') options = { hash: !!options };
    else if (Object.isUndefined(options.hash)) options.hash = true;
    var key, value, submitted = false, submit = options.submit;

    var data = elements.inject({ }, function(result, element) {
      if (!element.disabled && element.name) {
        key = element.name; value = $(element).getValue();
        if (value != null && (element.type != 'submit' || (!submitted &&
            submit !== false && (!submit || key == submit) && (submitted = true)))) {
          if (key in result) {
            // a key is already present; construct an array of values
            if (!Object.isArray(result[key])) result[key] = [result[key]];
            result[key].push(value);
          }
          else result[key] = value;
        }
      }
      return result;
    });

    return options.hash ? data : Object.toQueryString(data);
  }
};

Form.Methods = {
  serialize: function(form, options) {
    return Form.serializeElements(Form.getElements(form), options);
  },

  getElements: function(form) {
    return $A($(form).getElementsByTagName('*')).inject([],
      function(elements, child) {
        if (Form.Element.Serializers[child.tagName.toLowerCase()])
          elements.push(Element.extend(child));
        return elements;
      }
    );
  },

  getInputs: function(form, typeName, name) {
    form = $(form);
    var inputs = form.getElementsByTagName('input');

    if (!typeName && !name) return $A(inputs).map(Element.extend);

    for (var i = 0, matchingInputs = [], length = inputs.length; i < length; i++) {
      var input = inputs[i];
      if ((typeName && input.type != typeName) || (name && input.name != name))
        continue;
      matchingInputs.push(Element.extend(input));
    }

    return matchingInputs;
  },

  disable: function(form) {
    form = $(form);
    Form.getElements(form).invoke('disable');
    return form;
  },

  enable: function(form) {
    form = $(form);
    Form.getElements(form).invoke('enable');
    return form;
  },

  findFirstElement: function(form) {
    var elements = $(form).getElements().findAll(function(element) {
      return 'hidden' != element.type && !element.disabled;
    });
    var firstByIndex = elements.findAll(function(element) {
      return element.hasAttribute('tabIndex') && element.tabIndex >= 0;
    }).sortBy(function(element) { return element.tabIndex }).first();

    return firstByIndex ? firstByIndex : elements.find(function(element) {
      return ['input', 'select', 'textarea'].include(element.tagName.toLowerCase());
    });
  },

  focusFirstElement: function(form) {
    form = $(form);
    form.findFirstElement().activate();
    return form;
  },

  request: function(form, options) {
    form = $(form), options = Object.clone(options || { });

    var params = options.parameters, action = form.readAttribute('action') || '';
    if (action.blank()) action = window.location.href;
    options.parameters = form.serialize(true);

    if (params) {
      if (Object.isString(params)) params = params.toQueryParams();
      Object.extend(options.parameters, params);
    }

    if (form.hasAttribute('method') && !options.method)
      options.method = form.method;

    return new Ajax.Request(action, options);
  }
};

/*--------------------------------------------------------------------------*/

Form.Element = {
  focus: function(element) {
    $(element).focus();
    return element;
  },

  select: function(element) {
    $(element).select();
    return element;
  }
};

Form.Element.Methods = {
  serialize: function(element) {
    element = $(element);
    if (!element.disabled && element.name) {
      var value = element.getValue();
      if (value != undefined) {
        var pair = { };
        pair[element.name] = value;
        return Object.toQueryString(pair);
      }
    }
    return '';
  },

  getValue: function(element) {
    element = $(element);
    var method = element.tagName.toLowerCase();
    return Form.Element.Serializers[method](element);
  },

  setValue: function(element, value) {
    element = $(element);
    var method = element.tagName.toLowerCase();
    Form.Element.Serializers[method](element, value);
    return element;
  },

  clear: function(element) {
    $(element).value = '';
    return element;
  },

  present: function(element) {
    return $(element).value != '';
  },

  activate: function(element) {
    element = $(element);
    try {
      element.focus();
      if (element.select && (element.tagName.toLowerCase() != 'input' ||
          !['button', 'reset', 'submit'].include(element.type)))
        element.select();
    } catch (e) { }
    return element;
  },

  disable: function(element) {
    element = $(element);
    element.blur();
    element.disabled = true;
    return element;
  },

  enable: function(element) {
    element = $(element);
    element.disabled = false;
    return element;
  }
};

/*--------------------------------------------------------------------------*/

var Field = Form.Element;
var $F = Form.Element.Methods.getValue;

/*--------------------------------------------------------------------------*/

Form.Element.Serializers = {
  input: function(element, value) {
    switch (element.type.toLowerCase()) {
      case 'checkbox':
      case 'radio':
        return Form.Element.Serializers.inputSelector(element, value);
      default:
        return Form.Element.Serializers.textarea(element, value);
    }
  },

  inputSelector: function(element, value) {
    if (Object.isUndefined(value)) return element.checked ? element.value : null;
    else element.checked = !!value;
  },

  textarea: function(element, value) {
    if (Object.isUndefined(value)) return element.value;
    else element.value = value;
  },

  select: function(element, index) {
    if (Object.isUndefined(index))
      return this[element.type == 'select-one' ?
        'selectOne' : 'selectMany'](element);
    else {
      var opt, value, single = !Object.isArray(index);
      for (var i = 0, length = element.length; i < length; i++) {
        opt = element.options[i];
        value = this.optionValue(opt);
        if (single) {
          if (value == index) {
            opt.selected = true;
            return;
          }
        }
        else opt.selected = index.include(value);
      }
    }
  },

  selectOne: function(element) {
    var index = element.selectedIndex;
    return index >= 0 ? this.optionValue(element.options[index]) : null;
  },

  selectMany: function(element) {
    var values, length = element.length;
    if (!length) return null;

    for (var i = 0, values = []; i < length; i++) {
      var opt = element.options[i];
      if (opt.selected) values.push(this.optionValue(opt));
    }
    return values;
  },

  optionValue: function(opt) {
    // extend element because hasAttribute may not be native
    return Element.extend(opt).hasAttribute('value') ? opt.value : opt.text;
  }
};

/*--------------------------------------------------------------------------*/

Abstract.TimedObserver = Class.create(PeriodicalExecuter, {
  initialize: function($super, element, frequency, callback) {
    $super(callback, frequency);
    this.element   = $(element);
    this.lastValue = this.getValue();
  },

  execute: function() {
    var value = this.getValue();
    if (Object.isString(this.lastValue) && Object.isString(value) ?
        this.lastValue != value : String(this.lastValue) != String(value)) {
      this.callback(this.element, value);
      this.lastValue = value;
    }
  }
});

Form.Element.Observer = Class.create(Abstract.TimedObserver, {
  getValue: function() {
    return Form.Element.getValue(this.element);
  }
});

Form.Observer = Class.create(Abstract.TimedObserver, {
  getValue: function() {
    return Form.serialize(this.element);
  }
});

/*--------------------------------------------------------------------------*/

Abstract.EventObserver = Class.create({
  initialize: function(element, callback) {
    this.element  = $(element);
    this.callback = callback;

    this.lastValue = this.getValue();
    if (this.element.tagName.toLowerCase() == 'form')
      this.registerFormCallbacks();
    else
      this.registerCallback(this.element);
  },

  onElementEvent: function() {
    var value = this.getValue();
    if (this.lastValue != value) {
      this.callback(this.element, value);
      this.lastValue = value;
    }
  },

  registerFormCallbacks: function() {
    Form.getElements(this.element).each(this.registerCallback, this);
  },

  registerCallback: function(element) {
    if (element.type) {
      switch (element.type.toLowerCase()) {
        case 'checkbox':
        case 'radio':
          Event.observe(element, 'click', this.onElementEvent.bind(this));
          break;
        default:
          Event.observe(element, 'change', this.onElementEvent.bind(this));
          break;
      }
    }
  }
});

Form.Element.EventObserver = Class.create(Abstract.EventObserver, {
  getValue: function() {
    return Form.Element.getValue(this.element);
  }
});

Form.EventObserver = Class.create(Abstract.EventObserver, {
  getValue: function() {
    return Form.serialize(this.element);
  }
});
if (!window.Event) var Event = { };

Object.extend(Event, {
  KEY_BACKSPACE: 8,
  KEY_TAB:       9,
  KEY_RETURN:   13,
  KEY_ESC:      27,
  KEY_LEFT:     37,
  KEY_UP:       38,
  KEY_RIGHT:    39,
  KEY_DOWN:     40,
  KEY_DELETE:   46,
  KEY_HOME:     36,
  KEY_END:      35,
  KEY_PAGEUP:   33,
  KEY_PAGEDOWN: 34,
  KEY_INSERT:   45,

  cache: { },

  relatedTarget: function(event) {
    var element;
    switch(event.type) {
      case 'mouseover': element = event.fromElement; break;
      case 'mouseout':  element = event.toElement;   break;
      default: return null;
    }
    return Element.extend(element);
  }
});

Event.Methods = (function() {
  var isButton;

  if (Prototype.Browser.IE) {
    var buttonMap = { 0: 1, 1: 4, 2: 2 };
    isButton = function(event, code) {
      return event.button == buttonMap[code];
    };

  } else if (Prototype.Browser.WebKit) {
    isButton = function(event, code) {
      switch (code) {
        case 0: return event.which == 1 && !event.metaKey;
        case 1: return event.which == 1 && event.metaKey;
        default: return false;
      }
    };

  } else {
    isButton = function(event, code) {
      return event.which ? (event.which === code + 1) : (event.button === code);
    };
  }

  return {
    isLeftClick:   function(event) { return isButton(event, 0) },
    isMiddleClick: function(event) { return isButton(event, 1) },
    isRightClick:  function(event) { return isButton(event, 2) },

    element: function(event) {
      var node = Event.extend(event).target;
      return Element.extend(node.nodeType == Node.TEXT_NODE ? node.parentNode : node);
    },

    findElement: function(event, expression) {
      var element = Event.element(event);
      if (!expression) return element;
      var elements = [element].concat(element.ancestors());
      return Selector.findElement(elements, expression, 0);
    },

    pointer: function(event) {
      return {
        x: event.pageX || (event.clientX +
          (document.documentElement.scrollLeft || document.body.scrollLeft)),
        y: event.pageY || (event.clientY +
          (document.documentElement.scrollTop || document.body.scrollTop))
      };
    },

    pointerX: function(event) { return Event.pointer(event).x },
    pointerY: function(event) { return Event.pointer(event).y },

    stop: function(event) {
      Event.extend(event);
      event.preventDefault();
      event.stopPropagation();
      event.stopped = true;
    }
  };
})();

Event.extend = (function() {
  var methods = Object.keys(Event.Methods).inject({ }, function(m, name) {
    m[name] = Event.Methods[name].methodize();
    return m;
  });

  if (Prototype.Browser.IE) {
    Object.extend(methods, {
      stopPropagation: function() { this.cancelBubble = true },
      preventDefault:  function() { this.returnValue = false },
      inspect: function() { return "[object Event]" }
    });

    return function(event) {
      if (!event) return false;
      if (event._extendedByPrototype) return event;

      event._extendedByPrototype = Prototype.emptyFunction;
      var pointer = Event.pointer(event);
      Object.extend(event, {
        target: event.srcElement,
        relatedTarget: Event.relatedTarget(event),
        pageX:  pointer.x,
        pageY:  pointer.y
      });
      return Object.extend(event, methods);
    };

  } else {
    Event.prototype = Event.prototype || document.createEvent("HTMLEvents").__proto__;
    Object.extend(Event.prototype, methods);
    return Prototype.K;
  }
})();

Object.extend(Event, (function() {
  var cache = Event.cache;

  function getEventID(element) {
    if (element._eventID) return element._eventID;
    arguments.callee.id = arguments.callee.id || 1;
    return element._eventID = ++arguments.callee.id;
  }

  function getDOMEventName(eventName) {
    if (eventName && eventName.include(':')) return "dataavailable";
    return eventName;
  }

  function getCacheForID(id) {
    return cache[id] = cache[id] || { };
  }

  function getWrappersForEventName(id, eventName) {
    var c = getCacheForID(id);
    return c[eventName] = c[eventName] || [];
  }

  function createWrapper(element, eventName, handler) {
    var id = getEventID(element);
    var c = getWrappersForEventName(id, eventName);
    if (c.pluck("handler").include(handler)) return false;

    var wrapper = function(event) {
      if (!Event || !Event.extend ||
        (event.eventName && event.eventName != eventName))
          return false;

      Event.extend(event);
      handler.call(element, event);
    };

    wrapper.handler = handler;
    c.push(wrapper);
    return wrapper;
  }

  function findWrapper(id, eventName, handler) {
    var c = getWrappersForEventName(id, eventName);
    return c.find(function(wrapper) { return wrapper.handler == handler });
  }

  function destroyWrapper(id, eventName, handler) {
    var c = getCacheForID(id);
    if (!c[eventName]) return false;
    c[eventName] = c[eventName].without(findWrapper(id, eventName, handler));
  }

  function destroyCache() {
    for (var id in cache)
      for (var eventName in cache[id])
        cache[id][eventName] = null;
  }

  if (window.attachEvent) {
    window.attachEvent("onunload", destroyCache);
  }

  return {
    observe: function(element, eventName, handler) {
      element = $(element);
      var name = getDOMEventName(eventName);

      var wrapper = createWrapper(element, eventName, handler);
      if (!wrapper) return element;

      if (element.addEventListener) {
        element.addEventListener(name, wrapper, false);
      } else {
        element.attachEvent("on" + name, wrapper);
      }

      return element;
    },

    stopObserving: function(element, eventName, handler) {
      element = $(element);
      var id = getEventID(element), name = getDOMEventName(eventName);

      if (!handler && eventName) {
        getWrappersForEventName(id, eventName).each(function(wrapper) {
          element.stopObserving(eventName, wrapper.handler);
        });
        return element;

      } else if (!eventName) {
        Object.keys(getCacheForID(id)).each(function(eventName) {
          element.stopObserving(eventName);
        });
        return element;
      }

      var wrapper = findWrapper(id, eventName, handler);
      if (!wrapper) return element;

      if (element.removeEventListener) {
        element.removeEventListener(name, wrapper, false);
      } else {
        element.detachEvent("on" + name, wrapper);
      }

      destroyWrapper(id, eventName, handler);

      return element;
    },

    fire: function(element, eventName, memo) {
      element = $(element);
      if (element == document && document.createEvent && !element.dispatchEvent)
        element = document.documentElement;

      var event;
      if (document.createEvent) {
        event = document.createEvent("HTMLEvents");
        event.initEvent("dataavailable", true, true);
      } else {
        event = document.createEventObject();
        event.eventType = "ondataavailable";
      }

      event.eventName = eventName;
      event.memo = memo || { };

      if (document.createEvent) {
        element.dispatchEvent(event);
      } else {
        element.fireEvent(event.eventType, event);
      }

      return Event.extend(event);
    }
  };
})());

Object.extend(Event, Event.Methods);

Element.addMethods({
  fire:          Event.fire,
  observe:       Event.observe,
  stopObserving: Event.stopObserving
});

Object.extend(document, {
  fire:          Element.Methods.fire.methodize(),
  observe:       Element.Methods.observe.methodize(),
  stopObserving: Element.Methods.stopObserving.methodize(),
  loaded:        false
});

(function() {
  /* Support for the DOMContentLoaded event is based on work by Dan Webb,
     Matthias Miller, Dean Edwards and John Resig. */

  var timer;

  function fireContentLoadedEvent() {
    if (document.loaded) return;
    if (timer) window.clearInterval(timer);
    document.fire("dom:loaded");
    document.loaded = true;
  }

  if (document.addEventListener) {
    if (Prototype.Browser.WebKit) {
      timer = window.setInterval(function() {
        if (/loaded|complete/.test(document.readyState))
          fireContentLoadedEvent();
      }, 0);

      Event.observe(window, "load", fireContentLoadedEvent);

    } else {
      document.addEventListener("DOMContentLoaded",
        fireContentLoadedEvent, false);
    }

  } else {
    document.write("<script id=__onDOMContentLoaded defer src=//:><\/script>");
    $("__onDOMContentLoaded").onreadystatechange = function() {
      if (this.readyState == "complete") {
        this.onreadystatechange = null;
        fireContentLoadedEvent();
      }
    };
  }
})();
/*------------------------------- DEPRECATED -------------------------------*/

Hash.toQueryString = Object.toQueryString;

var Toggle = { display: Element.toggle };

Element.Methods.childOf = Element.Methods.descendantOf;

var Insertion = {
  Before: function(element, content) {
    return Element.insert(element, {before:content});
  },

  Top: function(element, content) {
    return Element.insert(element, {top:content});
  },

  Bottom: function(element, content) {
    return Element.insert(element, {bottom:content});
  },

  After: function(element, content) {
    return Element.insert(element, {after:content});
  }
};

var $continue = new Error('"throw $continue" is deprecated, use "return" instead');

// This should be moved to script.aculo.us; notice the deprecated methods
// further below, that map to the newer Element methods.
var Position = {
  // set to true if needed, warning: firefox performance problems
  // NOT neeeded for page scrolling, only if draggable contained in
  // scrollable elements
  includeScrollOffsets: false,

  // must be called before calling withinIncludingScrolloffset, every time the
  // page is scrolled
  prepare: function() {
    this.deltaX =  window.pageXOffset
                || document.documentElement.scrollLeft
                || document.body.scrollLeft
                || 0;
    this.deltaY =  window.pageYOffset
                || document.documentElement.scrollTop
                || document.body.scrollTop
                || 0;
  },

  // caches x/y coordinate pair to use with overlap
  within: function(element, x, y) {
    if (this.includeScrollOffsets)
      return this.withinIncludingScrolloffsets(element, x, y);
    this.xcomp = x;
    this.ycomp = y;
    this.offset = Element.cumulativeOffset(element);

    return (y >= this.offset[1] &&
            y <  this.offset[1] + element.offsetHeight &&
            x >= this.offset[0] &&
            x <  this.offset[0] + element.offsetWidth);
  },

  withinIncludingScrolloffsets: function(element, x, y) {
    var offsetcache = Element.cumulativeScrollOffset(element);

    this.xcomp = x + offsetcache[0] - this.deltaX;
    this.ycomp = y + offsetcache[1] - this.deltaY;
    this.offset = Element.cumulativeOffset(element);

    return (this.ycomp >= this.offset[1] &&
            this.ycomp <  this.offset[1] + element.offsetHeight &&
            this.xcomp >= this.offset[0] &&
            this.xcomp <  this.offset[0] + element.offsetWidth);
  },

  // within must be called directly before
  overlap: function(mode, element) {
    if (!mode) return 0;
    if (mode == 'vertical')
      return ((this.offset[1] + element.offsetHeight) - this.ycomp) /
        element.offsetHeight;
    if (mode == 'horizontal')
      return ((this.offset[0] + element.offsetWidth) - this.xcomp) /
        element.offsetWidth;
  },

  // Deprecation layer -- use newer Element methods now (1.5.2).

  cumulativeOffset: Element.Methods.cumulativeOffset,

  positionedOffset: Element.Methods.positionedOffset,

  absolutize: function(element) {
    Position.prepare();
    return Element.absolutize(element);
  },

  relativize: function(element) {
    Position.prepare();
    return Element.relativize(element);
  },

  realOffset: Element.Methods.cumulativeScrollOffset,

  offsetParent: Element.Methods.getOffsetParent,

  page: Element.Methods.viewportOffset,

  clone: function(source, target, options) {
    options = options || { };
    return Element.clonePosition(target, source, options);
  }
};

/*--------------------------------------------------------------------------*/

if (!document.getElementsByClassName) document.getElementsByClassName = function(instanceMethods){
  function iter(name) {
    return name.blank() ? null : "[contains(concat(' ', @class, ' '), ' " + name + " ')]";
  }

  instanceMethods.getElementsByClassName = Prototype.BrowserFeatures.XPath ?
  function(element, className) {
    className = className.toString().strip();
    var cond = /\s/.test(className) ? $w(className).map(iter).join('') : iter(className);
    return cond ? document._getElementsByXPath('.//*' + cond, element) : [];
  } : function(element, className) {
    className = className.toString().strip();
    var elements = [], classNames = (/\s/.test(className) ? $w(className) : null);
    if (!classNames && !className) return elements;

    var nodes = $(element).getElementsByTagName('*');
    className = ' ' + className + ' ';

    for (var i = 0, child, cn; child = nodes[i]; i++) {
      if (child.className && (cn = ' ' + child.className + ' ') && (cn.include(className) ||
          (classNames && classNames.all(function(name) {
            return !name.toString().blank() && cn.include(' ' + name + ' ');
          }))))
        elements.push(Element.extend(child));
    }
    return elements;
  };

  return function(className, parentElement) {
    return $(parentElement || document.body).getElementsByClassName(className);
  };
}(Element.Methods);

/*--------------------------------------------------------------------------*/

Element.ClassNames = Class.create();
Element.ClassNames.prototype = {
  initialize: function(element) {
    this.element = $(element);
  },

  _each: function(iterator) {
    this.element.className.split(/\s+/).select(function(name) {
      return name.length > 0;
    })._each(iterator);
  },

  set: function(className) {
    this.element.className = className;
  },

  add: function(classNameToAdd) {
    if (this.include(classNameToAdd)) return;
    this.set($A(this).concat(classNameToAdd).join(' '));
  },

  remove: function(classNameToRemove) {
    if (!this.include(classNameToRemove)) return;
    this.set($A(this).without(classNameToRemove).join(' '));
  },

  toString: function() {
    return $A(this).join(' ');
  }
};

Object.extend(Element.ClassNames.prototype, Enumerable);

/*--------------------------------------------------------------------------*/

Element.addMethods();// script.aculo.us builder.js v1.8.1, Thu Jan 03 22:07:12 -0500 2008

// Copyright (c) 2005-2007 Thomas Fuchs (http://script.aculo.us, http://mir.aculo.us)
//
// script.aculo.us is freely distributable under the terms of an MIT-style license.
// For details, see the script.aculo.us web site: http://script.aculo.us/

var Builder = {
  NODEMAP: {
    AREA: 'map',
    CAPTION: 'table',
    COL: 'table',
    COLGROUP: 'table',
    LEGEND: 'fieldset',
    OPTGROUP: 'select',
    OPTION: 'select',
    PARAM: 'object',
    TBODY: 'table',
    TD: 'table',
    TFOOT: 'table',
    TH: 'table',
    THEAD: 'table',
    TR: 'table'
  },
  // note: For Firefox < 1.5, OPTION and OPTGROUP tags are currently broken,
  //       due to a Firefox bug
  node: function(elementName) {
    elementName = elementName.toUpperCase();
    
    // try innerHTML approach
    var parentTag = this.NODEMAP[elementName] || 'div';
    var parentElement = document.createElement(parentTag);
    try { // prevent IE "feature": http://dev.rubyonrails.org/ticket/2707
      parentElement.innerHTML = "<" + elementName + "></" + elementName + ">";
    } catch(e) {}
    var element = parentElement.firstChild || null;
      
    // see if browser added wrapping tags
    if(element && (element.tagName.toUpperCase() != elementName))
      element = element.getElementsByTagName(elementName)[0];
    
    // fallback to createElement approach
    if(!element) element = document.createElement(elementName);
    
    // abort if nothing could be created
    if(!element) return;

    // attributes (or text)
    if(arguments[1])
      if(this._isStringOrNumber(arguments[1]) ||
        (arguments[1] instanceof Array) ||
        arguments[1].tagName) {
          this._children(element, arguments[1]);
        } else {
          var attrs = this._attributes(arguments[1]);
          if(attrs.length) {
            try { // prevent IE "feature": http://dev.rubyonrails.org/ticket/2707
              parentElement.innerHTML = "<" +elementName + " " +
                attrs + "></" + elementName + ">";
            } catch(e) {}
            element = parentElement.firstChild || null;
            // workaround firefox 1.0.X bug
            if(!element) {
              element = document.createElement(elementName);
              for(attr in arguments[1]) 
                element[attr == 'class' ? 'className' : attr] = arguments[1][attr];
            }
            if(element.tagName.toUpperCase() != elementName)
              element = parentElement.getElementsByTagName(elementName)[0];
          }
        } 

    // text, or array of children
    if(arguments[2])
      this._children(element, arguments[2]);

     return element;
  },
  _text: function(text) {
     return document.createTextNode(text);
  },

  ATTR_MAP: {
    'className': 'class',
    'htmlFor': 'for'
  },

  _attributes: function(attributes) {
    var attrs = [];
    for(attribute in attributes)
      attrs.push((attribute in this.ATTR_MAP ? this.ATTR_MAP[attribute] : attribute) +
          '="' + attributes[attribute].toString().escapeHTML().gsub(/"/,'&quot;') + '"');
    return attrs.join(" ");
  },
  _children: function(element, children) {
    if(children.tagName) {
      element.appendChild(children);
      return;
    }
    if(typeof children=='object') { // array can hold nodes and text
      children.flatten().each( function(e) {
        if(typeof e=='object')
          element.appendChild(e)
        else
          if(Builder._isStringOrNumber(e))
            element.appendChild(Builder._text(e));
      });
    } else
      if(Builder._isStringOrNumber(children))
        element.appendChild(Builder._text(children));
  },
  _isStringOrNumber: function(param) {
    return(typeof param=='string' || typeof param=='number');
  },
  build: function(html) {
    var element = this.node('div');
    $(element).update(html.strip());
    return element.down();
  },
  dump: function(scope) { 
    if(typeof scope != 'object' && typeof scope != 'function') scope = window; //global scope 
  
    var tags = ("A ABBR ACRONYM ADDRESS APPLET AREA B BASE BASEFONT BDO BIG BLOCKQUOTE BODY " +
      "BR BUTTON CAPTION CENTER CITE CODE COL COLGROUP DD DEL DFN DIR DIV DL DT EM FIELDSET " +
      "FONT FORM FRAME FRAMESET H1 H2 H3 H4 H5 H6 HEAD HR HTML I IFRAME IMG INPUT INS ISINDEX "+
      "KBD LABEL LEGEND LI LINK MAP MENU META NOFRAMES NOSCRIPT OBJECT OL OPTGROUP OPTION P "+
      "PARAM PRE Q S SAMP SCRIPT SELECT SMALL SPAN STRIKE STRONG STYLE SUB SUP TABLE TBODY TD "+
      "TEXTAREA TFOOT TH THEAD TITLE TR TT U UL VAR").split(/\s+/);
  
    tags.each( function(tag){ 
      scope[tag] = function() { 
        return Builder.node.apply(Builder, [tag].concat($A(arguments)));  
      } 
    });
  }
}
// script.aculo.us effects.js v1.8.1, Thu Jan 03 22:07:12 -0500 2008

// Copyright (c) 2005-2007 Thomas Fuchs (http://script.aculo.us, http://mir.aculo.us)
// Contributors:
//  Justin Palmer (http://encytemedia.com/)
//  Mark Pilgrim (http://diveintomark.org/)
//  Martin Bialasinki
// 
// script.aculo.us is freely distributable under the terms of an MIT-style license.
// For details, see the script.aculo.us web site: http://script.aculo.us/ 

// converts rgb() and #xxx to #xxxxxx format,  
// returns self (or first argument) if not convertable  
String.prototype.parseColor = function() {  
  var color = '#';
  if (this.slice(0,4) == 'rgb(') {  
    var cols = this.slice(4,this.length-1).split(',');  
    var i=0; do { color += parseInt(cols[i]).toColorPart() } while (++i<3);  
  } else {  
    if (this.slice(0,1) == '#') {  
      if (this.length==4) for(var i=1;i<4;i++) color += (this.charAt(i) + this.charAt(i)).toLowerCase();  
      if (this.length==7) color = this.toLowerCase();  
    }  
  }  
  return (color.length==7 ? color : (arguments[0] || this));  
};

/*--------------------------------------------------------------------------*/

Element.collectTextNodes = function(element) {  
  return $A($(element).childNodes).collect( function(node) {
    return (node.nodeType==3 ? node.nodeValue : 
      (node.hasChildNodes() ? Element.collectTextNodes(node) : ''));
  }).flatten().join('');
};

Element.collectTextNodesIgnoreClass = function(element, className) {  
  return $A($(element).childNodes).collect( function(node) {
    return (node.nodeType==3 ? node.nodeValue : 
      ((node.hasChildNodes() && !Element.hasClassName(node,className)) ? 
        Element.collectTextNodesIgnoreClass(node, className) : ''));
  }).flatten().join('');
};

Element.setContentZoom = function(element, percent) {
  element = $(element);  
  element.setStyle({fontSize: (percent/100) + 'em'});   
  if (Prototype.Browser.WebKit) window.scrollBy(0,0);
  return element;
};

Element.getInlineOpacity = function(element){
  return $(element).style.opacity || '';
};

Element.forceRerendering = function(element) {
  try {
    element = $(element);
    var n = document.createTextNode(' ');
    element.appendChild(n);
    element.removeChild(n);
  } catch(e) { }
};

/*--------------------------------------------------------------------------*/

var Effect = {
  _elementDoesNotExistError: {
    name: 'ElementDoesNotExistError',
    message: 'The specified DOM element does not exist, but is required for this effect to operate'
  },
  Transitions: {
    linear: Prototype.K,
    sinoidal: function(pos) {
      return (-Math.cos(pos*Math.PI)/2) + 0.5;
    },
    reverse: function(pos) {
      return 1-pos;
    },
    flicker: function(pos) {
      var pos = ((-Math.cos(pos*Math.PI)/4) + 0.75) + Math.random()/4;
      return pos > 1 ? 1 : pos;
    },
    wobble: function(pos) {
      return (-Math.cos(pos*Math.PI*(9*pos))/2) + 0.5;
    },
    pulse: function(pos, pulses) { 
      pulses = pulses || 5; 
      return (
        ((pos % (1/pulses)) * pulses).round() == 0 ? 
              ((pos * pulses * 2) - (pos * pulses * 2).floor()) : 
          1 - ((pos * pulses * 2) - (pos * pulses * 2).floor())
        );
    },
    spring: function(pos) { 
      return 1 - (Math.cos(pos * 4.5 * Math.PI) * Math.exp(-pos * 6)); 
    },
    none: function(pos) {
      return 0;
    },
    full: function(pos) {
      return 1;
    }
  },
  DefaultOptions: {
    duration:   1.0,   // seconds
    fps:        100,   // 100= assume 66fps max.
    sync:       false, // true for combining
    from:       0.0,
    to:         1.0,
    delay:      0.0,
    queue:      'parallel'
  },
  tagifyText: function(element) {
    var tagifyStyle = 'position:relative';
    if (Prototype.Browser.IE) tagifyStyle += ';zoom:1';
    
    element = $(element);
    $A(element.childNodes).each( function(child) {
      if (child.nodeType==3) {
        child.nodeValue.toArray().each( function(character) {
          element.insertBefore(
            new Element('span', {style: tagifyStyle}).update(
              character == ' ' ? String.fromCharCode(160) : character), 
              child);
        });
        Element.remove(child);
      }
    });
  },
  multiple: function(element, effect) {
    var elements;
    if (((typeof element == 'object') || 
        Object.isFunction(element)) && 
       (element.length))
      elements = element;
    else
      elements = $(element).childNodes;
      
    var options = Object.extend({
      speed: 0.1,
      delay: 0.0
    }, arguments[2] || { });
    var masterDelay = options.delay;

    $A(elements).each( function(element, index) {
      new effect(element, Object.extend(options, { delay: index * options.speed + masterDelay }));
    });
  },
  PAIRS: {
    'slide':  ['SlideDown','SlideUp'],
    'blind':  ['BlindDown','BlindUp'],
    'appear': ['Appear','Fade']
  },
  toggle: function(element, effect) {
    element = $(element);
    effect = (effect || 'appear').toLowerCase();
    var options = Object.extend({
      queue: { position:'end', scope:(element.id || 'global'), limit: 1 }
    }, arguments[2] || { });
    Effect[element.visible() ? 
      Effect.PAIRS[effect][1] : Effect.PAIRS[effect][0]](element, options);
  }
};

Effect.DefaultOptions.transition = Effect.Transitions.sinoidal;

/* ------------- core effects ------------- */

Effect.ScopedQueue = Class.create(Enumerable, {
  initialize: function() {
    this.effects  = [];
    this.interval = null;    
  },
  _each: function(iterator) {
    this.effects._each(iterator);
  },
  add: function(effect) {
    var timestamp = new Date().getTime();
    
    var position = Object.isString(effect.options.queue) ? 
      effect.options.queue : effect.options.queue.position;
    
    switch(position) {
      case 'front':
        // move unstarted effects after this effect  
        this.effects.findAll(function(e){ return e.state=='idle' }).each( function(e) {
            e.startOn  += effect.finishOn;
            e.finishOn += effect.finishOn;
          });
        break;
      case 'with-last':
        timestamp = this.effects.pluck('startOn').max() || timestamp;
        break;
      case 'end':
        // start effect after last queued effect has finished
        timestamp = this.effects.pluck('finishOn').max() || timestamp;
        break;
    }
    
    effect.startOn  += timestamp;
    effect.finishOn += timestamp;

    if (!effect.options.queue.limit || (this.effects.length < effect.options.queue.limit))
      this.effects.push(effect);
    
    if (!this.interval)
      this.interval = setInterval(this.loop.bind(this), 15);
  },
  remove: function(effect) {
    this.effects = this.effects.reject(function(e) { return e==effect });
    if (this.effects.length == 0) {
      clearInterval(this.interval);
      this.interval = null;
    }
  },
  loop: function() {
    var timePos = new Date().getTime();
    for(var i=0, len=this.effects.length;i<len;i++) 
      this.effects[i] && this.effects[i].loop(timePos);
  }
});

Effect.Queues = {
  instances: $H(),
  get: function(queueName) {
    if (!Object.isString(queueName)) return queueName;
    
    return this.instances.get(queueName) ||
      this.instances.set(queueName, new Effect.ScopedQueue());
  }
};
Effect.Queue = Effect.Queues.get('global');

Effect.Base = Class.create({
  position: null,
  start: function(options) {
    function codeForEvent(options,eventName){
      return (
        (options[eventName+'Internal'] ? 'this.options.'+eventName+'Internal(this);' : '') +
        (options[eventName] ? 'this.options.'+eventName+'(this);' : '')
      );
    }
    if (options && options.transition === false) options.transition = Effect.Transitions.linear;
    this.options      = Object.extend(Object.extend({ },Effect.DefaultOptions), options || { });
    this.currentFrame = 0;
    this.state        = 'idle';
    this.startOn      = this.options.delay*1000;
    this.finishOn     = this.startOn+(this.options.duration*1000);
    this.fromToDelta  = this.options.to-this.options.from;
    this.totalTime    = this.finishOn-this.startOn;
    this.totalFrames  = this.options.fps*this.options.duration;
    
    eval('this.render = function(pos){ '+
      'if (this.state=="idle"){this.state="running";'+
      codeForEvent(this.options,'beforeSetup')+
      (this.setup ? 'this.setup();':'')+ 
      codeForEvent(this.options,'afterSetup')+
      '};if (this.state=="running"){'+
      'pos=this.options.transition(pos)*'+this.fromToDelta+'+'+this.options.from+';'+
      'this.position=pos;'+
      codeForEvent(this.options,'beforeUpdate')+
      (this.update ? 'this.update(pos);':'')+
      codeForEvent(this.options,'afterUpdate')+
      '}}');
    
    this.event('beforeStart');
    if (!this.options.sync)
      Effect.Queues.get(Object.isString(this.options.queue) ? 
        'global' : this.options.queue.scope).add(this);
  },
  loop: function(timePos) {
    if (timePos >= this.startOn) {
      if (timePos >= this.finishOn) {
        this.render(1.0);
        this.cancel();
        this.event('beforeFinish');
        if (this.finish) this.finish(); 
        this.event('afterFinish');
        return;  
      }
      var pos   = (timePos - this.startOn) / this.totalTime,
          frame = (pos * this.totalFrames).round();
      if (frame > this.currentFrame) {
        this.render(pos);
        this.currentFrame = frame;
      }
    }
  },
  cancel: function() {
    if (!this.options.sync)
      Effect.Queues.get(Object.isString(this.options.queue) ? 
        'global' : this.options.queue.scope).remove(this);
    this.state = 'finished';
  },
  event: function(eventName) {
    if (this.options[eventName + 'Internal']) this.options[eventName + 'Internal'](this);
    if (this.options[eventName]) this.options[eventName](this);
  },
  inspect: function() {
    var data = $H();
    for(property in this)
      if (!Object.isFunction(this[property])) data.set(property, this[property]);
    return '#<Effect:' + data.inspect() + ',options:' + $H(this.options).inspect() + '>';
  }
});

Effect.Parallel = Class.create(Effect.Base, {
  initialize: function(effects) {
    this.effects = effects || [];
    this.start(arguments[1]);
  },
  update: function(position) {
    this.effects.invoke('render', position);
  },
  finish: function(position) {
    this.effects.each( function(effect) {
      effect.render(1.0);
      effect.cancel();
      effect.event('beforeFinish');
      if (effect.finish) effect.finish(position);
      effect.event('afterFinish');
    });
  }
});

Effect.Tween = Class.create(Effect.Base, {
  initialize: function(object, from, to) {
    object = Object.isString(object) ? $(object) : object;
    var args = $A(arguments), method = args.last(), 
      options = args.length == 5 ? args[3] : null;
    this.method = Object.isFunction(method) ? method.bind(object) :
      Object.isFunction(object[method]) ? object[method].bind(object) : 
      function(value) { object[method] = value };
    this.start(Object.extend({ from: from, to: to }, options || { }));
  },
  update: function(position) {
    this.method(position);
  }
});

Effect.Event = Class.create(Effect.Base, {
  initialize: function() {
    this.start(Object.extend({ duration: 0 }, arguments[0] || { }));
  },
  update: Prototype.emptyFunction
});

Effect.Opacity = Class.create(Effect.Base, {
  initialize: function(element) {
    this.element = $(element);
    if (!this.element) throw(Effect._elementDoesNotExistError);
    // make this work on IE on elements without 'layout'
    if (Prototype.Browser.IE && (!this.element.currentStyle.hasLayout))
      this.element.setStyle({zoom: 1});
    var options = Object.extend({
      from: this.element.getOpacity() || 0.0,
      to:   1.0
    }, arguments[1] || { });
    this.start(options);
  },
  update: function(position) {
    this.element.setOpacity(position);
  }
});

Effect.Move = Class.create(Effect.Base, {
  initialize: function(element) {
    this.element = $(element);
    if (!this.element) throw(Effect._elementDoesNotExistError);
    var options = Object.extend({
      x:    0,
      y:    0,
      mode: 'relative'
    }, arguments[1] || { });
    this.start(options);
  },
  setup: function() {
    this.element.makePositioned();
    this.originalLeft = parseFloat(this.element.getStyle('left') || '0');
    this.originalTop  = parseFloat(this.element.getStyle('top')  || '0');
    if (this.options.mode == 'absolute') {
      this.options.x = this.options.x - this.originalLeft;
      this.options.y = this.options.y - this.originalTop;
    }
  },
  update: function(position) {
    this.element.setStyle({
      left: (this.options.x  * position + this.originalLeft).round() + 'px',
      top:  (this.options.y  * position + this.originalTop).round()  + 'px'
    });
  }
});

// for backwards compatibility
Effect.MoveBy = function(element, toTop, toLeft) {
  return new Effect.Move(element, 
    Object.extend({ x: toLeft, y: toTop }, arguments[3] || { }));
};

Effect.Scale = Class.create(Effect.Base, {
  initialize: function(element, percent) {
    this.element = $(element);
    if (!this.element) throw(Effect._elementDoesNotExistError);
    var options = Object.extend({
      scaleX: true,
      scaleY: true,
      scaleContent: true,
      scaleFromCenter: false,
      scaleMode: 'box',        // 'box' or 'contents' or { } with provided values
      scaleFrom: 100.0,
      scaleTo:   percent
    }, arguments[2] || { });
    this.start(options);
  },
  setup: function() {
    this.restoreAfterFinish = this.options.restoreAfterFinish || false;
    this.elementPositioning = this.element.getStyle('position');
    
    this.originalStyle = { };
    ['top','left','width','height','fontSize'].each( function(k) {
      this.originalStyle[k] = this.element.style[k];
    }.bind(this));
      
    this.originalTop  = this.element.offsetTop;
    this.originalLeft = this.element.offsetLeft;
    
    var fontSize = this.element.getStyle('font-size') || '100%';
    ['em','px','%','pt'].each( function(fontSizeType) {
      if (fontSize.indexOf(fontSizeType)>0) {
        this.fontSize     = parseFloat(fontSize);
        this.fontSizeType = fontSizeType;
      }
    }.bind(this));
    
    this.factor = (this.options.scaleTo - this.options.scaleFrom)/100;
    
    this.dims = null;
    if (this.options.scaleMode=='box')
      this.dims = [this.element.offsetHeight, this.element.offsetWidth];
    if (/^content/.test(this.options.scaleMode))
      this.dims = [this.element.scrollHeight, this.element.scrollWidth];
    if (!this.dims)
      this.dims = [this.options.scaleMode.originalHeight,
                   this.options.scaleMode.originalWidth];
  },
  update: function(position) {
    var currentScale = (this.options.scaleFrom/100.0) + (this.factor * position);
    if (this.options.scaleContent && this.fontSize)
      this.element.setStyle({fontSize: this.fontSize * currentScale + this.fontSizeType });
    this.setDimensions(this.dims[0] * currentScale, this.dims[1] * currentScale);
  },
  finish: function(position) {
    if (this.restoreAfterFinish) this.element.setStyle(this.originalStyle);
  },
  setDimensions: function(height, width) {
    var d = { };
    if (this.options.scaleX) d.width = width.round() + 'px';
    if (this.options.scaleY) d.height = height.round() + 'px';
    if (this.options.scaleFromCenter) {
      var topd  = (height - this.dims[0])/2;
      var leftd = (width  - this.dims[1])/2;
      if (this.elementPositioning == 'absolute') {
        if (this.options.scaleY) d.top = this.originalTop-topd + 'px';
        if (this.options.scaleX) d.left = this.originalLeft-leftd + 'px';
      } else {
        if (this.options.scaleY) d.top = -topd + 'px';
        if (this.options.scaleX) d.left = -leftd + 'px';
      }
    }
    this.element.setStyle(d);
  }
});

Effect.Highlight = Class.create(Effect.Base, {
  initialize: function(element) {
    this.element = $(element);
    if (!this.element) throw(Effect._elementDoesNotExistError);
    var options = Object.extend({ startcolor: '#ffff99' }, arguments[1] || { });
    this.start(options);
  },
  setup: function() {
    // Prevent executing on elements not in the layout flow
    if (this.element.getStyle('display')=='none') { this.cancel(); return; }
    // Disable background image during the effect
    this.oldStyle = { };
    if (!this.options.keepBackgroundImage) {
      this.oldStyle.backgroundImage = this.element.getStyle('background-image');
      this.element.setStyle({backgroundImage: 'none'});
    }
    if (!this.options.endcolor)
      this.options.endcolor = this.element.getStyle('background-color').parseColor('#ffffff');
    if (!this.options.restorecolor)
      this.options.restorecolor = this.element.getStyle('background-color');
    // init color calculations
    this._base  = $R(0,2).map(function(i){ return parseInt(this.options.startcolor.slice(i*2+1,i*2+3),16) }.bind(this));
    this._delta = $R(0,2).map(function(i){ return parseInt(this.options.endcolor.slice(i*2+1,i*2+3),16)-this._base[i] }.bind(this));
  },
  update: function(position) {
    this.element.setStyle({backgroundColor: $R(0,2).inject('#',function(m,v,i){
      return m+((this._base[i]+(this._delta[i]*position)).round().toColorPart()); }.bind(this)) });
  },
  finish: function() {
    this.element.setStyle(Object.extend(this.oldStyle, {
      backgroundColor: this.options.restorecolor
    }));
  }
});

Effect.ScrollTo = function(element) {
  var options = arguments[1] || { },
    scrollOffsets = document.viewport.getScrollOffsets(),
    elementOffsets = $(element).cumulativeOffset(),
    max = (window.height || document.body.scrollHeight) - document.viewport.getHeight();  

  if (options.offset) elementOffsets[1] += options.offset;

  return new Effect.Tween(null,
    scrollOffsets.top,
    elementOffsets[1] > max ? max : elementOffsets[1],
    options,
    function(p){ scrollTo(scrollOffsets.left, p.round()) }
  );
};

/* ------------- combination effects ------------- */

Effect.Fade = function(element) {
  element = $(element);
  var oldOpacity = element.getInlineOpacity();
  var options = Object.extend({
    from: element.getOpacity() || 1.0,
    to:   0.0,
    afterFinishInternal: function(effect) { 
      if (effect.options.to!=0) return;
      effect.element.hide().setStyle({opacity: oldOpacity}); 
    }
  }, arguments[1] || { });
  return new Effect.Opacity(element,options);
};

Effect.Appear = function(element) {
  element = $(element);
  var options = Object.extend({
  from: (element.getStyle('display') == 'none' ? 0.0 : element.getOpacity() || 0.0),
  to:   1.0,
  // force Safari to render floated elements properly
  afterFinishInternal: function(effect) {
    effect.element.forceRerendering();
  },
  beforeSetup: function(effect) {
    effect.element.setOpacity(effect.options.from).show(); 
  }}, arguments[1] || { });
  return new Effect.Opacity(element,options);
};

Effect.Puff = function(element) {
  element = $(element);
  var oldStyle = { 
    opacity: element.getInlineOpacity(), 
    position: element.getStyle('position'),
    top:  element.style.top,
    left: element.style.left,
    width: element.style.width,
    height: element.style.height
  };
  return new Effect.Parallel(
   [ new Effect.Scale(element, 200, 
      { sync: true, scaleFromCenter: true, scaleContent: true, restoreAfterFinish: true }), 
     new Effect.Opacity(element, { sync: true, to: 0.0 } ) ], 
     Object.extend({ duration: 1.0, 
      beforeSetupInternal: function(effect) {
        Position.absolutize(effect.effects[0].element)
      },
      afterFinishInternal: function(effect) {
         effect.effects[0].element.hide().setStyle(oldStyle); }
     }, arguments[1] || { })
   );
};

Effect.BlindUp = function(element) {
  element = $(element);
  element.makeClipping();
  return new Effect.Scale(element, 0,
    Object.extend({ scaleContent: false, 
      scaleX: false, 
      restoreAfterFinish: true,
      afterFinishInternal: function(effect) {
        effect.element.hide().undoClipping();
      } 
    }, arguments[1] || { })
  );
};

Effect.BlindDown = function(element) {
  element = $(element);
  var elementDimensions = element.getDimensions();
  return new Effect.Scale(element, 100, Object.extend({ 
    scaleContent: false, 
    scaleX: false,
    scaleFrom: 0,
    scaleMode: {originalHeight: elementDimensions.height, originalWidth: elementDimensions.width},
    restoreAfterFinish: true,
    afterSetup: function(effect) {
      effect.element.makeClipping().setStyle({height: '0px'}).show(); 
    },  
    afterFinishInternal: function(effect) {
      effect.element.undoClipping();
    }
  }, arguments[1] || { }));
};

Effect.SwitchOff = function(element) {
  element = $(element);
  var oldOpacity = element.getInlineOpacity();
  return new Effect.Appear(element, Object.extend({
    duration: 0.4,
    from: 0,
    transition: Effect.Transitions.flicker,
    afterFinishInternal: function(effect) {
      new Effect.Scale(effect.element, 1, { 
        duration: 0.3, scaleFromCenter: true,
        scaleX: false, scaleContent: false, restoreAfterFinish: true,
        beforeSetup: function(effect) { 
          effect.element.makePositioned().makeClipping();
        },
        afterFinishInternal: function(effect) {
          effect.element.hide().undoClipping().undoPositioned().setStyle({opacity: oldOpacity});
        }
      })
    }
  }, arguments[1] || { }));
};

Effect.DropOut = function(element) {
  element = $(element);
  var oldStyle = {
    top: element.getStyle('top'),
    left: element.getStyle('left'),
    opacity: element.getInlineOpacity() };
  return new Effect.Parallel(
    [ new Effect.Move(element, {x: 0, y: 100, sync: true }), 
      new Effect.Opacity(element, { sync: true, to: 0.0 }) ],
    Object.extend(
      { duration: 0.5,
        beforeSetup: function(effect) {
          effect.effects[0].element.makePositioned(); 
        },
        afterFinishInternal: function(effect) {
          effect.effects[0].element.hide().undoPositioned().setStyle(oldStyle);
        } 
      }, arguments[1] || { }));
};

Effect.Shake = function(element) {
  element = $(element);
  var options = Object.extend({
    distance: 20,
    duration: 0.5
  }, arguments[1] || {});
  var distance = parseFloat(options.distance);
  var split = parseFloat(options.duration) / 10.0;
  var oldStyle = {
    top: element.getStyle('top'),
    left: element.getStyle('left') };
    return new Effect.Move(element,
      { x:  distance, y: 0, duration: split, afterFinishInternal: function(effect) {
    new Effect.Move(effect.element,
      { x: -distance*2, y: 0, duration: split*2,  afterFinishInternal: function(effect) {
    new Effect.Move(effect.element,
      { x:  distance*2, y: 0, duration: split*2,  afterFinishInternal: function(effect) {
    new Effect.Move(effect.element,
      { x: -distance*2, y: 0, duration: split*2,  afterFinishInternal: function(effect) {
    new Effect.Move(effect.element,
      { x:  distance*2, y: 0, duration: split*2,  afterFinishInternal: function(effect) {
    new Effect.Move(effect.element,
      { x: -distance, y: 0, duration: split, afterFinishInternal: function(effect) {
        effect.element.undoPositioned().setStyle(oldStyle);
  }}) }}) }}) }}) }}) }});
};

Effect.SlideDown = function(element) {
  element = $(element).cleanWhitespace();
  // SlideDown need to have the content of the element wrapped in a container element with fixed height!
  var oldInnerBottom = element.down().getStyle('bottom');
  var elementDimensions = element.getDimensions();
  return new Effect.Scale(element, 100, Object.extend({ 
    scaleContent: false, 
    scaleX: false, 
    scaleFrom: window.opera ? 0 : 1,
    scaleMode: {originalHeight: elementDimensions.height, originalWidth: elementDimensions.width},
    restoreAfterFinish: true,
    afterSetup: function(effect) {
      effect.element.makePositioned();
      effect.element.down().makePositioned();
      if (window.opera) effect.element.setStyle({top: ''});
      effect.element.makeClipping().setStyle({height: '0px'}).show(); 
    },
    afterUpdateInternal: function(effect) {
      effect.element.down().setStyle({bottom:
        (effect.dims[0] - effect.element.clientHeight) + 'px' }); 
    },
    afterFinishInternal: function(effect) {
      effect.element.undoClipping().undoPositioned();
      effect.element.down().undoPositioned().setStyle({bottom: oldInnerBottom}); }
    }, arguments[1] || { })
  );
};

Effect.SlideUp = function(element) {
  element = $(element).cleanWhitespace();
  var oldInnerBottom = element.down().getStyle('bottom');
  var elementDimensions = element.getDimensions();
  return new Effect.Scale(element, window.opera ? 0 : 1,
   Object.extend({ scaleContent: false, 
    scaleX: false, 
    scaleMode: 'box',
    scaleFrom: 100,
    scaleMode: {originalHeight: elementDimensions.height, originalWidth: elementDimensions.width},
    restoreAfterFinish: true,
    afterSetup: function(effect) {
      effect.element.makePositioned();
      effect.element.down().makePositioned();
      if (window.opera) effect.element.setStyle({top: ''});
      effect.element.makeClipping().show();
    },  
    afterUpdateInternal: function(effect) {
      effect.element.down().setStyle({bottom:
        (effect.dims[0] - effect.element.clientHeight) + 'px' });
    },
    afterFinishInternal: function(effect) {
      effect.element.hide().undoClipping().undoPositioned();
      effect.element.down().undoPositioned().setStyle({bottom: oldInnerBottom});
    }
   }, arguments[1] || { })
  );
};

// Bug in opera makes the TD containing this element expand for a instance after finish 
Effect.Squish = function(element) {
  return new Effect.Scale(element, window.opera ? 1 : 0, { 
    restoreAfterFinish: true,
    beforeSetup: function(effect) {
      effect.element.makeClipping(); 
    },  
    afterFinishInternal: function(effect) {
      effect.element.hide().undoClipping(); 
    }
  });
};

Effect.Grow = function(element) {
  element = $(element);
  var options = Object.extend({
    direction: 'center',
    moveTransition: Effect.Transitions.sinoidal,
    scaleTransition: Effect.Transitions.sinoidal,
    opacityTransition: Effect.Transitions.full
  }, arguments[1] || { });
  var oldStyle = {
    top: element.style.top,
    left: element.style.left,
    height: element.style.height,
    width: element.style.width,
    opacity: element.getInlineOpacity() };

  var dims = element.getDimensions();    
  var initialMoveX, initialMoveY;
  var moveX, moveY;
  
  switch (options.direction) {
    case 'top-left':
      initialMoveX = initialMoveY = moveX = moveY = 0; 
      break;
    case 'top-right':
      initialMoveX = dims.width;
      initialMoveY = moveY = 0;
      moveX = -dims.width;
      break;
    case 'bottom-left':
      initialMoveX = moveX = 0;
      initialMoveY = dims.height;
      moveY = -dims.height;
      break;
    case 'bottom-right':
      initialMoveX = dims.width;
      initialMoveY = dims.height;
      moveX = -dims.width;
      moveY = -dims.height;
      break;
    case 'center':
      initialMoveX = dims.width / 2;
      initialMoveY = dims.height / 2;
      moveX = -dims.width / 2;
      moveY = -dims.height / 2;
      break;
  }
  
  return new Effect.Move(element, {
    x: initialMoveX,
    y: initialMoveY,
    duration: 0.01, 
    beforeSetup: function(effect) {
      effect.element.hide().makeClipping().makePositioned();
    },
    afterFinishInternal: function(effect) {
      new Effect.Parallel(
        [ new Effect.Opacity(effect.element, { sync: true, to: 1.0, from: 0.0, transition: options.opacityTransition }),
          new Effect.Move(effect.element, { x: moveX, y: moveY, sync: true, transition: options.moveTransition }),
          new Effect.Scale(effect.element, 100, {
            scaleMode: { originalHeight: dims.height, originalWidth: dims.width }, 
            sync: true, scaleFrom: window.opera ? 1 : 0, transition: options.scaleTransition, restoreAfterFinish: true})
        ], Object.extend({
             beforeSetup: function(effect) {
               effect.effects[0].element.setStyle({height: '0px'}).show(); 
             },
             afterFinishInternal: function(effect) {
               effect.effects[0].element.undoClipping().undoPositioned().setStyle(oldStyle); 
             }
           }, options)
      )
    }
  });
};

Effect.Shrink = function(element) {
  element = $(element);
  var options = Object.extend({
    direction: 'center',
    moveTransition: Effect.Transitions.sinoidal,
    scaleTransition: Effect.Transitions.sinoidal,
    opacityTransition: Effect.Transitions.none
  }, arguments[1] || { });
  var oldStyle = {
    top: element.style.top,
    left: element.style.left,
    height: element.style.height,
    width: element.style.width,
    opacity: element.getInlineOpacity() };

  var dims = element.getDimensions();
  var moveX, moveY;
  
  switch (options.direction) {
    case 'top-left':
      moveX = moveY = 0;
      break;
    case 'top-right':
      moveX = dims.width;
      moveY = 0;
      break;
    case 'bottom-left':
      moveX = 0;
      moveY = dims.height;
      break;
    case 'bottom-right':
      moveX = dims.width;
      moveY = dims.height;
      break;
    case 'center':  
      moveX = dims.width / 2;
      moveY = dims.height / 2;
      break;
  }
  
  return new Effect.Parallel(
    [ new Effect.Opacity(element, { sync: true, to: 0.0, from: 1.0, transition: options.opacityTransition }),
      new Effect.Scale(element, window.opera ? 1 : 0, { sync: true, transition: options.scaleTransition, restoreAfterFinish: true}),
      new Effect.Move(element, { x: moveX, y: moveY, sync: true, transition: options.moveTransition })
    ], Object.extend({            
         beforeStartInternal: function(effect) {
           effect.effects[0].element.makePositioned().makeClipping(); 
         },
         afterFinishInternal: function(effect) {
           effect.effects[0].element.hide().undoClipping().undoPositioned().setStyle(oldStyle); }
       }, options)
  );
};

Effect.Pulsate = function(element) {
  element = $(element);
  var options    = arguments[1] || { };
  var oldOpacity = element.getInlineOpacity();
  var transition = options.transition || Effect.Transitions.sinoidal;
  var reverser   = function(pos){ return transition(1-Effect.Transitions.pulse(pos, options.pulses)) };
  reverser.bind(transition);
  return new Effect.Opacity(element, 
    Object.extend(Object.extend({  duration: 2.0, from: 0,
      afterFinishInternal: function(effect) { effect.element.setStyle({opacity: oldOpacity}); }
    }, options), {transition: reverser}));
};

Effect.Fold = function(element) {
  element = $(element);
  var oldStyle = {
    top: element.style.top,
    left: element.style.left,
    width: element.style.width,
    height: element.style.height };
  element.makeClipping();
  return new Effect.Scale(element, 5, Object.extend({   
    scaleContent: false,
    scaleX: false,
    afterFinishInternal: function(effect) {
    new Effect.Scale(element, 1, { 
      scaleContent: false, 
      scaleY: false,
      afterFinishInternal: function(effect) {
        effect.element.hide().undoClipping().setStyle(oldStyle);
      } });
  }}, arguments[1] || { }));
};

Effect.Morph = Class.create(Effect.Base, {
  initialize: function(element) {
    this.element = $(element);
    if (!this.element) throw(Effect._elementDoesNotExistError);
    var options = Object.extend({
      style: { }
    }, arguments[1] || { });
    
    if (!Object.isString(options.style)) this.style = $H(options.style);
    else {
      if (options.style.include(':'))
        this.style = options.style.parseStyle();
      else {
        this.element.addClassName(options.style);
        this.style = $H(this.element.getStyles());
        this.element.removeClassName(options.style);
        var css = this.element.getStyles();
        this.style = this.style.reject(function(style) {
          return style.value == css[style.key];
        });
        options.afterFinishInternal = function(effect) {
          effect.element.addClassName(effect.options.style);
          effect.transforms.each(function(transform) {
            effect.element.style[transform.style] = '';
          });
        }
      }
    }
    this.start(options);
  },
  
  setup: function(){
    function parseColor(color){
      if (!color || ['rgba(0, 0, 0, 0)','transparent'].include(color)) color = '#ffffff';
      color = color.parseColor();
      return $R(0,2).map(function(i){
        return parseInt( color.slice(i*2+1,i*2+3), 16 ) 
      });
    }
    this.transforms = this.style.map(function(pair){
      var property = pair[0], value = pair[1], unit = null;

      if (value.parseColor('#zzzzzz') != '#zzzzzz') {
        value = value.parseColor();
        unit  = 'color';
      } else if (property == 'opacity') {
        value = parseFloat(value);
        if (Prototype.Browser.IE && (!this.element.currentStyle.hasLayout))
          this.element.setStyle({zoom: 1});
      } else if (Element.CSS_LENGTH.test(value)) {
          var components = value.match(/^([\+\-]?[0-9\.]+)(.*)$/);
          value = parseFloat(components[1]);
          unit = (components.length == 3) ? components[2] : null;
      }

      var originalValue = this.element.getStyle(property);
      return { 
        style: property.camelize(), 
        originalValue: unit=='color' ? parseColor(originalValue) : parseFloat(originalValue || 0), 
        targetValue: unit=='color' ? parseColor(value) : value,
        unit: unit
      };
    }.bind(this)).reject(function(transform){
      return (
        (transform.originalValue == transform.targetValue) ||
        (
          transform.unit != 'color' &&
          (isNaN(transform.originalValue) || isNaN(transform.targetValue))
        )
      )
    });
  },
  update: function(position) {
    var style = { }, transform, i = this.transforms.length;
    while(i--)
      style[(transform = this.transforms[i]).style] = 
        transform.unit=='color' ? '#'+
          (Math.round(transform.originalValue[0]+
            (transform.targetValue[0]-transform.originalValue[0])*position)).toColorPart() +
          (Math.round(transform.originalValue[1]+
            (transform.targetValue[1]-transform.originalValue[1])*position)).toColorPart() +
          (Math.round(transform.originalValue[2]+
            (transform.targetValue[2]-transform.originalValue[2])*position)).toColorPart() :
        (transform.originalValue +
          (transform.targetValue - transform.originalValue) * position).toFixed(3) + 
            (transform.unit === null ? '' : transform.unit);
    this.element.setStyle(style, true);
  }
});

Effect.Transform = Class.create({
  initialize: function(tracks){
    this.tracks  = [];
    this.options = arguments[1] || { };
    this.addTracks(tracks);
  },
  addTracks: function(tracks){
    tracks.each(function(track){
      track = $H(track);
      var data = track.values().first();
      this.tracks.push($H({
        ids:     track.keys().first(),
        effect:  Effect.Morph,
        options: { style: data }
      }));
    }.bind(this));
    return this;
  },
  play: function(){
    return new Effect.Parallel(
      this.tracks.map(function(track){
        var ids = track.get('ids'), effect = track.get('effect'), options = track.get('options');
        var elements = [$(ids) || $$(ids)].flatten();
        return elements.map(function(e){ return new effect(e, Object.extend({ sync:true }, options)) });
      }).flatten(),
      this.options
    );
  }
});

Element.CSS_PROPERTIES = $w(
  'backgroundColor backgroundPosition borderBottomColor borderBottomStyle ' + 
  'borderBottomWidth borderLeftColor borderLeftStyle borderLeftWidth ' +
  'borderRightColor borderRightStyle borderRightWidth borderSpacing ' +
  'borderTopColor borderTopStyle borderTopWidth bottom clip color ' +
  'fontSize fontWeight height left letterSpacing lineHeight ' +
  'marginBottom marginLeft marginRight marginTop markerOffset maxHeight '+
  'maxWidth minHeight minWidth opacity outlineColor outlineOffset ' +
  'outlineWidth paddingBottom paddingLeft paddingRight paddingTop ' +
  'right textIndent top width wordSpacing zIndex');
  
Element.CSS_LENGTH = /^(([\+\-]?[0-9\.]+)(em|ex|px|in|cm|mm|pt|pc|\%))|0$/;

String.__parseStyleElement = document.createElement('div');
String.prototype.parseStyle = function(){
  var style, styleRules = $H();
  if (Prototype.Browser.WebKit)
    style = new Element('div',{style:this}).style;
  else {
    String.__parseStyleElement.innerHTML = '<div style="' + this + '"></div>';
    style = String.__parseStyleElement.childNodes[0].style;
  }
  
  Element.CSS_PROPERTIES.each(function(property){
    if (style[property]) styleRules.set(property, style[property]); 
  });
  
  if (Prototype.Browser.IE && this.include('opacity'))
    styleRules.set('opacity', this.match(/opacity:\s*((?:0|1)?(?:\.\d*)?)/)[1]);

  return styleRules;
};

if (document.defaultView && document.defaultView.getComputedStyle) {
  Element.getStyles = function(element) {
    var css = document.defaultView.getComputedStyle($(element), null);
    return Element.CSS_PROPERTIES.inject({ }, function(styles, property) {
      styles[property] = css[property];
      return styles;
    });
  };
} else {
  Element.getStyles = function(element) {
    element = $(element);
    var css = element.currentStyle, styles;
    styles = Element.CSS_PROPERTIES.inject({ }, function(results, property) {
      results[property] = css[property];
      return results;
    });
    if (!styles.opacity) styles.opacity = element.getOpacity();
    return styles;
  };
};

Effect.Methods = {
  morph: function(element, style) {
    element = $(element);
    new Effect.Morph(element, Object.extend({ style: style }, arguments[2] || { }));
    return element;
  },
  visualEffect: function(element, effect, options) {
    element = $(element)
    var s = effect.dasherize().camelize(), klass = s.charAt(0).toUpperCase() + s.substring(1);
    new Effect[klass](element, options);
    return element;
  },
  highlight: function(element, options) {
    element = $(element);
    new Effect.Highlight(element, options);
    return element;
  }
};

$w('fade appear grow shrink fold blindUp blindDown slideUp slideDown '+
  'pulsate shake puff squish switchOff dropOut').each(
  function(effect) { 
    Effect.Methods[effect] = function(element, options){
      element = $(element);
      Effect[effect.charAt(0).toUpperCase() + effect.substring(1)](element, options);
      return element;
    }
  }
);

$w('getInlineOpacity forceRerendering setContentZoom collectTextNodes collectTextNodesIgnoreClass getStyles').each( 
  function(f) { Effect.Methods[f] = Element[f]; }
);

Element.addMethods(Effect.Methods);
// script.aculo.us controls.js v1.8.1, Thu Jan 03 22:07:12 -0500 2008

// Copyright (c) 2005-2007 Thomas Fuchs (http://script.aculo.us, http://mir.aculo.us)
//           (c) 2005-2007 Ivan Krstic (http://blogs.law.harvard.edu/ivan)
//           (c) 2005-2007 Jon Tirsen (http://www.tirsen.com)
// Contributors:
//  Richard Livsey
//  Rahul Bhargava
//  Rob Wills
// 
// script.aculo.us is freely distributable under the terms of an MIT-style license.
// For details, see the script.aculo.us web site: http://script.aculo.us/

// Autocompleter.Base handles all the autocompletion functionality 
// that's independent of the data source for autocompletion. This
// includes drawing the autocompletion menu, observing keyboard
// and mouse events, and similar.
//
// Specific autocompleters need to provide, at the very least, 
// a getUpdatedChoices function that will be invoked every time
// the text inside the monitored textbox changes. This method 
// should get the text for which to provide autocompletion by
// invoking this.getToken(), NOT by directly accessing
// this.element.value. This is to allow incremental tokenized
// autocompletion. Specific auto-completion logic (AJAX, etc)
// belongs in getUpdatedChoices.
//
// Tokenized incremental autocompletion is enabled automatically
// when an autocompleter is instantiated with the 'tokens' option
// in the options parameter, e.g.:
// new Ajax.Autocompleter('id','upd', '/url/', { tokens: ',' });
// will incrementally autocomplete with a comma as the token.
// Additionally, ',' in the above example can be replaced with
// a token array, e.g. { tokens: [',', '\n'] } which
// enables autocompletion on multiple tokens. This is most 
// useful when one of the tokens is \n (a newline), as it 
// allows smart autocompletion after linebreaks.

if(typeof Effect == 'undefined')
  throw("controls.js requires including script.aculo.us' effects.js library");

var Autocompleter = { }
Autocompleter.Base = Class.create({
  baseInitialize: function(element, update, options) {
    element          = $(element)
    this.element     = element; 
    this.update      = $(update);  
    this.hasFocus    = false; 
    this.changed     = false; 
    this.active      = false; 
    this.index       = 0;     
    this.entryCount  = 0;
    this.oldElementValue = this.element.value;

    if(this.setOptions)
      this.setOptions(options);
    else
      this.options = options || { };

    this.options.paramName    = this.options.paramName || this.element.name;
    this.options.tokens       = this.options.tokens || [];
    this.options.frequency    = this.options.frequency || 0.4;
    this.options.minChars     = this.options.minChars || 1;
    this.options.onShow       = this.options.onShow || 
      function(element, update){ 
        if(!update.style.position || update.style.position=='absolute') {
          update.style.position = 'absolute';
          Position.clone(element, update, {
            setHeight: false, 
            offsetTop: element.offsetHeight
          });
        }
        Effect.Appear(update,{duration:0.15});
      };
    this.options.onHide = this.options.onHide || 
      function(element, update){ new Effect.Fade(update,{duration:0.15}) };

    if(typeof(this.options.tokens) == 'string') 
      this.options.tokens = new Array(this.options.tokens);
    // Force carriage returns as token delimiters anyway
    if (!this.options.tokens.include('\n'))
      this.options.tokens.push('\n');

    this.observer = null;
    
    this.element.setAttribute('autocomplete','off');

    Element.hide(this.update);

    Event.observe(this.element, 'blur', this.onBlur.bindAsEventListener(this));
    Event.observe(this.element, 'keydown', this.onKeyPress.bindAsEventListener(this));
  },

  show: function() {
    if(Element.getStyle(this.update, 'display')=='none') this.options.onShow(this.element, this.update);
    if(!this.iefix && 
      (Prototype.Browser.IE) &&
      (Element.getStyle(this.update, 'position')=='absolute')) {
      new Insertion.After(this.update, 
       '<iframe id="' + this.update.id + '_iefix" '+
       'style="display:none;position:absolute;filter:progid:DXImageTransform.Microsoft.Alpha(opacity=0);" ' +
       'src="javascript:false;" frameborder="0" scrolling="no"></iframe>');
      this.iefix = $(this.update.id+'_iefix');
    }
    if(this.iefix) setTimeout(this.fixIEOverlapping.bind(this), 50);
  },
  
  fixIEOverlapping: function() {
    Position.clone(this.update, this.iefix, {setTop:(!this.update.style.height)});
    this.iefix.style.zIndex = 1;
    this.update.style.zIndex = 2;
    Element.show(this.iefix);
  },

  hide: function() {
    this.stopIndicator();
    if(Element.getStyle(this.update, 'display')!='none') this.options.onHide(this.element, this.update);
    if(this.iefix) Element.hide(this.iefix);
  },

  startIndicator: function() {
    if(this.options.indicator) Element.show(this.options.indicator);
  },

  stopIndicator: function() {
    if(this.options.indicator) Element.hide(this.options.indicator);
  },

  onKeyPress: function(event) {
    if(this.active)
      switch(event.keyCode) {
       case Event.KEY_TAB:
       case Event.KEY_RETURN:
         this.selectEntry();
         Event.stop(event);
       case Event.KEY_ESC:
         this.hide();
         this.active = false;
         Event.stop(event);
         return;
       case Event.KEY_LEFT:
       case Event.KEY_RIGHT:
         return;
       case Event.KEY_UP:
         this.markPrevious();
         this.render();
         Event.stop(event);
         return;
       case Event.KEY_DOWN:
         this.markNext();
         this.render();
         Event.stop(event);
         return;
      }
     else 
       if(event.keyCode==Event.KEY_TAB || event.keyCode==Event.KEY_RETURN || 
         (Prototype.Browser.WebKit > 0 && event.keyCode == 0)) return;

    this.changed = true;
    this.hasFocus = true;

    if(this.observer) clearTimeout(this.observer);
      this.observer = 
        setTimeout(this.onObserverEvent.bind(this), this.options.frequency*1000);
  },

  activate: function() {
    this.changed = false;
    this.hasFocus = true;
    this.getUpdatedChoices();
  },

  onHover: function(event) {
    var element = Event.findElement(event, 'LI');
    if(this.index != element.autocompleteIndex) 
    {
        this.index = element.autocompleteIndex;
        this.render();
    }
    Event.stop(event);
  },
  
  onClick: function(event) {
    var element = Event.findElement(event, 'LI');
    this.index = element.autocompleteIndex;
    this.selectEntry();
    this.hide();
  },
  
  onBlur: function(event) {
    // needed to make click events working
    setTimeout(this.hide.bind(this), 250);
    this.hasFocus = false;
    this.active = false;     
  }, 
  
  render: function() {
    if(this.entryCount > 0) {
      for (var i = 0; i < this.entryCount; i++)
        this.index==i ? 
          Element.addClassName(this.getEntry(i),"selected") : 
          Element.removeClassName(this.getEntry(i),"selected");
      if(this.hasFocus) { 
        this.show();
        this.active = true;
      }
    } else {
      this.active = false;
      this.hide();
    }
  },
  
  markPrevious: function() {
    if(this.index > 0) this.index--
      else this.index = this.entryCount-1;
    this.getEntry(this.index).scrollIntoView(true);
  },
  
  markNext: function() {
    if(this.index < this.entryCount-1) this.index++
      else this.index = 0;
    this.getEntry(this.index).scrollIntoView(false);
  },
  
  getEntry: function(index) {
    return this.update.firstChild.childNodes[index];
  },
  
  getCurrentEntry: function() {
    return this.getEntry(this.index);
  },
  
  selectEntry: function() {
    this.active = false;
    this.updateElement(this.getCurrentEntry());
  },

  updateElement: function(selectedElement) {
    if (this.options.updateElement) {
      this.options.updateElement(selectedElement);
      return;
    }
    var value = '';
    if (this.options.select) {
      var nodes = $(selectedElement).select('.' + this.options.select) || [];
      if(nodes.length>0) value = Element.collectTextNodes(nodes[0], this.options.select);
    } else
      value = Element.collectTextNodesIgnoreClass(selectedElement, 'informal');
    
    var bounds = this.getTokenBounds();
    if (bounds[0] != -1) {
      var newValue = this.element.value.substr(0, bounds[0]);
      var whitespace = this.element.value.substr(bounds[0]).match(/^\s+/);
      if (whitespace)
        newValue += whitespace[0];
      this.element.value = newValue + value + this.element.value.substr(bounds[1]);
    } else {
      this.element.value = value;
    }
    this.oldElementValue = this.element.value;
    this.element.focus();
    
    if (this.options.afterUpdateElement)
      this.options.afterUpdateElement(this.element, selectedElement);
  },

  updateChoices: function(choices) {
    if(!this.changed && this.hasFocus) {
      this.update.innerHTML = choices;
      Element.cleanWhitespace(this.update);
      Element.cleanWhitespace(this.update.down());

      if(this.update.firstChild && this.update.down().childNodes) {
        this.entryCount = 
          this.update.down().childNodes.length;
        for (var i = 0; i < this.entryCount; i++) {
          var entry = this.getEntry(i);
          entry.autocompleteIndex = i;
          this.addObservers(entry);
        }
      } else { 
        this.entryCount = 0;
      }

      this.stopIndicator();
      this.index = 0;
      
      if(this.entryCount==1 && this.options.autoSelect) {
        this.selectEntry();
        this.hide();
      } else {
        this.render();
      }
    }
  },

  addObservers: function(element) {
    Event.observe(element, "mouseover", this.onHover.bindAsEventListener(this));
    Event.observe(element, "click", this.onClick.bindAsEventListener(this));
  },

  onObserverEvent: function() {
    this.changed = false;   
    this.tokenBounds = null;
    if(this.getToken().length>=this.options.minChars) {
      this.getUpdatedChoices();
    } else {
      this.active = false;
      this.hide();
    }
    this.oldElementValue = this.element.value;
  },

  getToken: function() {
    var bounds = this.getTokenBounds();
    return this.element.value.substring(bounds[0], bounds[1]).strip();
  },

  getTokenBounds: function() {
    if (null != this.tokenBounds) return this.tokenBounds;
    var value = this.element.value;
    if (value.strip().empty()) return [-1, 0];
    var diff = arguments.callee.getFirstDifferencePos(value, this.oldElementValue);
    var offset = (diff == this.oldElementValue.length ? 1 : 0);
    var prevTokenPos = -1, nextTokenPos = value.length;
    var tp;
    for (var index = 0, l = this.options.tokens.length; index < l; ++index) {
      tp = value.lastIndexOf(this.options.tokens[index], diff + offset - 1);
      if (tp > prevTokenPos) prevTokenPos = tp;
      tp = value.indexOf(this.options.tokens[index], diff + offset);
      if (-1 != tp && tp < nextTokenPos) nextTokenPos = tp;
    }
    return (this.tokenBounds = [prevTokenPos + 1, nextTokenPos]);
  }
});

Autocompleter.Base.prototype.getTokenBounds.getFirstDifferencePos = function(newS, oldS) {
  var boundary = Math.min(newS.length, oldS.length);
  for (var index = 0; index < boundary; ++index)
    if (newS[index] != oldS[index])
      return index;
  return boundary;
};

Ajax.Autocompleter = Class.create(Autocompleter.Base, {
  initialize: function(element, update, url, options) {
    this.baseInitialize(element, update, options);
    this.options.asynchronous  = true;
    this.options.onComplete    = this.onComplete.bind(this);
    this.options.defaultParams = this.options.parameters || null;
    this.url                   = url;
  },

  getUpdatedChoices: function() {
    this.startIndicator();
    
    var entry = encodeURIComponent(this.options.paramName) + '=' + 
      encodeURIComponent(this.getToken());

    this.options.parameters = this.options.callback ?
      this.options.callback(this.element, entry) : entry;

    if(this.options.defaultParams) 
      this.options.parameters += '&' + this.options.defaultParams;
    
    new Ajax.Request(this.url, this.options);
  },

  onComplete: function(request) {
    this.updateChoices(request.responseText);
  }
});

// The local array autocompleter. Used when you'd prefer to
// inject an array of autocompletion options into the page, rather
// than sending out Ajax queries, which can be quite slow sometimes.
//
// The constructor takes four parameters. The first two are, as usual,
// the id of the monitored textbox, and id of the autocompletion menu.
// The third is the array you want to autocomplete from, and the fourth
// is the options block.
//
// Extra local autocompletion options:
// - choices - How many autocompletion choices to offer
//
// - partialSearch - If false, the autocompleter will match entered
//                    text only at the beginning of strings in the 
//                    autocomplete array. Defaults to true, which will
//                    match text at the beginning of any *word* in the
//                    strings in the autocomplete array. If you want to
//                    search anywhere in the string, additionally set
//                    the option fullSearch to true (default: off).
//
// - fullSsearch - Search anywhere in autocomplete array strings.
//
// - partialChars - How many characters to enter before triggering
//                   a partial match (unlike minChars, which defines
//                   how many characters are required to do any match
//                   at all). Defaults to 2.
//
// - ignoreCase - Whether to ignore case when autocompleting.
//                 Defaults to true.
//
// It's possible to pass in a custom function as the 'selector' 
// option, if you prefer to write your own autocompletion logic.
// In that case, the other options above will not apply unless
// you support them.

Autocompleter.Local = Class.create(Autocompleter.Base, {
  initialize: function(element, update, array, options) {
    this.baseInitialize(element, update, options);
    this.options.array = array;
  },

  getUpdatedChoices: function() {
    this.updateChoices(this.options.selector(this));
  },

  setOptions: function(options) {
    this.options = Object.extend({
      choices: 10,
      partialSearch: true,
      partialChars: 2,
      ignoreCase: true,
      fullSearch: false,
      selector: function(instance) {
        var ret       = []; // Beginning matches
        var partial   = []; // Inside matches
        var entry     = instance.getToken();
        var count     = 0;

        for (var i = 0; i < instance.options.array.length &&  
          ret.length < instance.options.choices ; i++) { 

          var elem = instance.options.array[i];
          var foundPos = instance.options.ignoreCase ? 
            elem.toLowerCase().indexOf(entry.toLowerCase()) : 
            elem.indexOf(entry);

          while (foundPos != -1) {
            if (foundPos == 0 && elem.length != entry.length) { 
              ret.push("<li><strong>" + elem.substr(0, entry.length) + "</strong>" + 
                elem.substr(entry.length) + "</li>");
              break;
            } else if (entry.length >= instance.options.partialChars && 
              instance.options.partialSearch && foundPos != -1) {
              if (instance.options.fullSearch || /\s/.test(elem.substr(foundPos-1,1))) {
                partial.push("<li>" + elem.substr(0, foundPos) + "<strong>" +
                  elem.substr(foundPos, entry.length) + "</strong>" + elem.substr(
                  foundPos + entry.length) + "</li>");
                break;
              }
            }

            foundPos = instance.options.ignoreCase ? 
              elem.toLowerCase().indexOf(entry.toLowerCase(), foundPos + 1) : 
              elem.indexOf(entry, foundPos + 1);

          }
        }
        if (partial.length)
          ret = ret.concat(partial.slice(0, instance.options.choices - ret.length))
        return "<ul>" + ret.join('') + "</ul>";
      }
    }, options || { });
  }
});

// AJAX in-place editor and collection editor
// Full rewrite by Christophe Porteneuve <tdd@tddsworld.com> (April 2007).

// Use this if you notice weird scrolling problems on some browsers,
// the DOM might be a bit confused when this gets called so do this
// waits 1 ms (with setTimeout) until it does the activation
Field.scrollFreeActivate = function(field) {
  setTimeout(function() {
    Field.activate(field);
  }, 1);
}

Ajax.InPlaceEditor = Class.create({
  initialize: function(element, url, options) {
    this.url = url;
    this.element = element = $(element);
    this.prepareOptions();
    this._controls = { };
    arguments.callee.dealWithDeprecatedOptions(options); // DEPRECATION LAYER!!!
    Object.extend(this.options, options || { });
    if (!this.options.formId && this.element.id) {
      this.options.formId = this.element.id + '-inplaceeditor';
      if ($(this.options.formId))
        this.options.formId = '';
    }
    if (this.options.externalControl)
      this.options.externalControl = $(this.options.externalControl);
    if (!this.options.externalControl)
      this.options.externalControlOnly = false;
    this._originalBackground = this.element.getStyle('background-color') || 'transparent';
    this.element.title = this.options.clickToEditText;
    this._boundCancelHandler = this.handleFormCancellation.bind(this);
    this._boundComplete = (this.options.onComplete || Prototype.emptyFunction).bind(this);
    this._boundFailureHandler = this.handleAJAXFailure.bind(this);
    this._boundSubmitHandler = this.handleFormSubmission.bind(this);
    this._boundWrapperHandler = this.wrapUp.bind(this);
    this.registerListeners();
  },
  checkForEscapeOrReturn: function(e) {
    if (!this._editing || e.ctrlKey || e.altKey || e.shiftKey) return;
    if (Event.KEY_ESC == e.keyCode)
      this.handleFormCancellation(e);
    else if (Event.KEY_RETURN == e.keyCode)
      this.handleFormSubmission(e);
  },
  createControl: function(mode, handler, extraClasses) {
    var control = this.options[mode + 'Control'];
    var text = this.options[mode + 'Text'];
    if ('button' == control) {
      var btn = document.createElement('input');
      btn.type = 'submit';
      btn.value = text;
      btn.className = 'editor_' + mode + '_button';
      if ('cancel' == mode)
        btn.onclick = this._boundCancelHandler;
      this._form.appendChild(btn);
      this._controls[mode] = btn;
    } else if ('link' == control) {
      var link = document.createElement('a');
      link.href = '#';
      link.appendChild(document.createTextNode(text));
      link.onclick = 'cancel' == mode ? this._boundCancelHandler : this._boundSubmitHandler;
      link.className = 'editor_' + mode + '_link';
      if (extraClasses)
        link.className += ' ' + extraClasses;
      this._form.appendChild(link);
      this._controls[mode] = link;
    }
  },
  createEditField: function() {
    var text = (this.options.loadTextURL ? this.options.loadingText : this.getText());
    var fld;
    if (1 >= this.options.rows && !/\r|\n/.test(this.getText())) {
      fld = document.createElement('input');
      fld.type = 'text';
      var size = this.options.size || this.options.cols || 0;
      if (0 < size) fld.size = size;
    } else {
      fld = document.createElement('textarea');
      fld.rows = (1 >= this.options.rows ? this.options.autoRows : this.options.rows);
      fld.cols = this.options.cols || 40;
    }
    fld.name = this.options.paramName;
    fld.value = text; // No HTML breaks conversion anymore
    fld.className = 'editor_field';
    if (this.options.submitOnBlur)
      fld.onblur = this._boundSubmitHandler;
    this._controls.editor = fld;
    if (this.options.loadTextURL)
      this.loadExternalText();
    this._form.appendChild(this._controls.editor);
  },
  createForm: function() {
    var ipe = this;
    function addText(mode, condition) {
      var text = ipe.options['text' + mode + 'Controls'];
      if (!text || condition === false) return;
      ipe._form.appendChild(document.createTextNode(text));
    };
    this._form = $(document.createElement('form'));
    this._form.id = this.options.formId;
    this._form.addClassName(this.options.formClassName);
    this._form.onsubmit = this._boundSubmitHandler;
    this.createEditField();
    if ('textarea' == this._controls.editor.tagName.toLowerCase())
      this._form.appendChild(document.createElement('br'));
    if (this.options.onFormCustomization)
      this.options.onFormCustomization(this, this._form);
    addText('Before', this.options.okControl || this.options.cancelControl);
    this.createControl('ok', this._boundSubmitHandler);
    addText('Between', this.options.okControl && this.options.cancelControl);
    this.createControl('cancel', this._boundCancelHandler, 'editor_cancel');
    addText('After', this.options.okControl || this.options.cancelControl);
  },
  destroy: function() {
    if (this._oldInnerHTML)
      this.element.innerHTML = this._oldInnerHTML;
    this.leaveEditMode();
    this.unregisterListeners();
  },
  enterEditMode: function(e) {
    if (this._saving || this._editing) return;
    this._editing = true;
    this.triggerCallback('onEnterEditMode');
    if (this.options.externalControl)
      this.options.externalControl.hide();
    this.element.hide();
    this.createForm();
    this.element.parentNode.insertBefore(this._form, this.element);
    if (!this.options.loadTextURL)
      this.postProcessEditField();
    if (e) Event.stop(e);
  },
  enterHover: function(e) {
    if (this.options.hoverClassName)
      this.element.addClassName(this.options.hoverClassName);
    if (this._saving) return;
    this.triggerCallback('onEnterHover');
  },
  getText: function() {
    return this.element.innerHTML;
  },
  handleAJAXFailure: function(transport) {
    this.triggerCallback('onFailure', transport);
    if (this._oldInnerHTML) {
      this.element.innerHTML = this._oldInnerHTML;
      this._oldInnerHTML = null;
    }
  },
  handleFormCancellation: function(e) {
    this.wrapUp();
    if (e) Event.stop(e);
  },
  handleFormSubmission: function(e) {
    var form = this._form;
    var value = $F(this._controls.editor);
    this.prepareSubmission();
    var params = this.options.callback(form, value) || '';
    if (Object.isString(params))
      params = params.toQueryParams();
    params.editorId = this.element.id;
    if (this.options.htmlResponse) {
      var options = Object.extend({ evalScripts: true }, this.options.ajaxOptions);
      Object.extend(options, {
        parameters: params,
        onComplete: this._boundWrapperHandler,
        onFailure: this._boundFailureHandler
      });
      new Ajax.Updater({ success: this.element }, this.url, options);
    } else {
      var options = Object.extend({ method: 'get' }, this.options.ajaxOptions);
      Object.extend(options, {
        parameters: params,
        onComplete: this._boundWrapperHandler,
        onFailure: this._boundFailureHandler
      });
      new Ajax.Request(this.url, options);
    }
    if (e) Event.stop(e);
  },
  leaveEditMode: function() {
    this.element.removeClassName(this.options.savingClassName);
    this.removeForm();
    this.leaveHover();
    this.element.style.backgroundColor = this._originalBackground;
    this.element.show();
    if (this.options.externalControl)
      this.options.externalControl.show();
    this._saving = false;
    this._editing = false;
    this._oldInnerHTML = null;
    this.triggerCallback('onLeaveEditMode');
  },
  leaveHover: function(e) {
    if (this.options.hoverClassName)
      this.element.removeClassName(this.options.hoverClassName);
    if (this._saving) return;
    this.triggerCallback('onLeaveHover');
  },
  loadExternalText: function() {
    this._form.addClassName(this.options.loadingClassName);
    this._controls.editor.disabled = true;
    var options = Object.extend({ method: 'get' }, this.options.ajaxOptions);
    Object.extend(options, {
      parameters: 'editorId=' + encodeURIComponent(this.element.id),
      onComplete: Prototype.emptyFunction,
      onSuccess: function(transport) {
        this._form.removeClassName(this.options.loadingClassName);
        var text = transport.responseText;
        if (this.options.stripLoadedTextTags)
          text = text.stripTags();
        this._controls.editor.value = text;
        this._controls.editor.disabled = false;
        this.postProcessEditField();
      }.bind(this),
      onFailure: this._boundFailureHandler
    });
    new Ajax.Request(this.options.loadTextURL, options);
  },
  postProcessEditField: function() {
    var fpc = this.options.fieldPostCreation;
    if (fpc)
      $(this._controls.editor)['focus' == fpc ? 'focus' : 'activate']();
  },
  prepareOptions: function() {
    this.options = Object.clone(Ajax.InPlaceEditor.DefaultOptions);
    Object.extend(this.options, Ajax.InPlaceEditor.DefaultCallbacks);
    [this._extraDefaultOptions].flatten().compact().each(function(defs) {
      Object.extend(this.options, defs);
    }.bind(this));
  },
  prepareSubmission: function() {
    this._saving = true;
    this.removeForm();
    this.leaveHover();
    this.showSaving();
  },
  registerListeners: function() {
    this._listeners = { };
    var listener;
    $H(Ajax.InPlaceEditor.Listeners).each(function(pair) {
      listener = this[pair.value].bind(this);
      this._listeners[pair.key] = listener;
      if (!this.options.externalControlOnly)
        this.element.observe(pair.key, listener);
      if (this.options.externalControl)
        this.options.externalControl.observe(pair.key, listener);
    }.bind(this));
  },
  removeForm: function() {
    if (!this._form) return;
    this._form.remove();
    this._form = null;
    this._controls = { };
  },
  showSaving: function() {
    this._oldInnerHTML = this.element.innerHTML;
    this.element.innerHTML = this.options.savingText;
    this.element.addClassName(this.options.savingClassName);
    this.element.style.backgroundColor = this._originalBackground;
    this.element.show();
  },
  triggerCallback: function(cbName, arg) {
    if ('function' == typeof this.options[cbName]) {
      this.options[cbName](this, arg);
    }
  },
  unregisterListeners: function() {
    $H(this._listeners).each(function(pair) {
      if (!this.options.externalControlOnly)
        this.element.stopObserving(pair.key, pair.value);
      if (this.options.externalControl)
        this.options.externalControl.stopObserving(pair.key, pair.value);
    }.bind(this));
  },
  wrapUp: function(transport) {
    this.leaveEditMode();
    // Can't use triggerCallback due to backward compatibility: requires
    // binding + direct element
    this._boundComplete(transport, this.element);
  }
});

Object.extend(Ajax.InPlaceEditor.prototype, {
  dispose: Ajax.InPlaceEditor.prototype.destroy
});

Ajax.InPlaceCollectionEditor = Class.create(Ajax.InPlaceEditor, {
  initialize: function($super, element, url, options) {
    this._extraDefaultOptions = Ajax.InPlaceCollectionEditor.DefaultOptions;
    $super(element, url, options);
  },

  createEditField: function() {
    var list = document.createElement('select');
    list.name = this.options.paramName;
    list.size = 1;
    this._controls.editor = list;
    this._collection = this.options.collection || [];
    if (this.options.loadCollectionURL)
      this.loadCollection();
    else
      this.checkForExternalText();
    this._form.appendChild(this._controls.editor);
  },

  loadCollection: function() {
    this._form.addClassName(this.options.loadingClassName);
    this.showLoadingText(this.options.loadingCollectionText);
    var options = Object.extend({ method: 'get' }, this.options.ajaxOptions);
    Object.extend(options, {
      parameters: 'editorId=' + encodeURIComponent(this.element.id),
      onComplete: Prototype.emptyFunction,
      onSuccess: function(transport) {
        var js = transport.responseText.strip();
        if (!/^\[.*\]$/.test(js)) // TODO: improve sanity check
          throw 'Server returned an invalid collection representation.';
        this._collection = eval(js);
        this.checkForExternalText();
      }.bind(this),
      onFailure: this.onFailure
    });
    new Ajax.Request(this.options.loadCollectionURL, options);
  },

  showLoadingText: function(text) {
    this._controls.editor.disabled = true;
    var tempOption = this._controls.editor.firstChild;
    if (!tempOption) {
      tempOption = document.createElement('option');
      tempOption.value = '';
      this._controls.editor.appendChild(tempOption);
      tempOption.selected = true;
    }
    tempOption.update((text || '').stripScripts().stripTags());
  },

  checkForExternalText: function() {
    this._text = this.getText();
    if (this.options.loadTextURL)
      this.loadExternalText();
    else
      this.buildOptionList();
  },

  loadExternalText: function() {
    this.showLoadingText(this.options.loadingText);
    var options = Object.extend({ method: 'get' }, this.options.ajaxOptions);
    Object.extend(options, {
      parameters: 'editorId=' + encodeURIComponent(this.element.id),
      onComplete: Prototype.emptyFunction,
      onSuccess: function(transport) {
        this._text = transport.responseText.strip();
        this.buildOptionList();
      }.bind(this),
      onFailure: this.onFailure
    });
    new Ajax.Request(this.options.loadTextURL, options);
  },

  buildOptionList: function() {
    this._form.removeClassName(this.options.loadingClassName);
    this._collection = this._collection.map(function(entry) {
      return 2 === entry.length ? entry : [entry, entry].flatten();
    });
    var marker = ('value' in this.options) ? this.options.value : this._text;
    var textFound = this._collection.any(function(entry) {
      return entry[0] == marker;
    }.bind(this));
    this._controls.editor.update('');
    var option;
    this._collection.each(function(entry, index) {
      option = document.createElement('option');
      option.value = entry[0];
      option.selected = textFound ? entry[0] == marker : 0 == index;
      option.appendChild(document.createTextNode(entry[1]));
      this._controls.editor.appendChild(option);
    }.bind(this));
    this._controls.editor.disabled = false;
    Field.scrollFreeActivate(this._controls.editor);
  }
});

//**** DEPRECATION LAYER FOR InPlace[Collection]Editor! ****
//**** This only  exists for a while,  in order to  let ****
//**** users adapt to  the new API.  Read up on the new ****
//**** API and convert your code to it ASAP!            ****

Ajax.InPlaceEditor.prototype.initialize.dealWithDeprecatedOptions = function(options) {
  if (!options) return;
  function fallback(name, expr) {
    if (name in options || expr === undefined) return;
    options[name] = expr;
  };
  fallback('cancelControl', (options.cancelLink ? 'link' : (options.cancelButton ? 'button' :
    options.cancelLink == options.cancelButton == false ? false : undefined)));
  fallback('okControl', (options.okLink ? 'link' : (options.okButton ? 'button' :
    options.okLink == options.okButton == false ? false : undefined)));
  fallback('highlightColor', options.highlightcolor);
  fallback('highlightEndColor', options.highlightendcolor);
};

Object.extend(Ajax.InPlaceEditor, {
  DefaultOptions: {
    ajaxOptions: { },
    autoRows: 3,                                // Use when multi-line w/ rows == 1
    cancelControl: 'link',                      // 'link'|'button'|false
    cancelText: 'cancel',
    clickToEditText: 'Click to edit',
    externalControl: null,                      // id|elt
    externalControlOnly: false,
    fieldPostCreation: 'activate',              // 'activate'|'focus'|false
    formClassName: 'inplaceeditor-form',
    formId: null,                               // id|elt
    highlightColor: '#ffff99',
    highlightEndColor: '#ffffff',
    hoverClassName: '',
    htmlResponse: true,
    loadingClassName: 'inplaceeditor-loading',
    loadingText: 'Loading...',
    okControl: 'button',                        // 'link'|'button'|false
    okText: 'ok',
    paramName: 'value',
    rows: 1,                                    // If 1 and multi-line, uses autoRows
    savingClassName: 'inplaceeditor-saving',
    savingText: 'Saving...',
    size: 0,
    stripLoadedTextTags: false,
    submitOnBlur: false,
    textAfterControls: '',
    textBeforeControls: '',
    textBetweenControls: ''
  },
  DefaultCallbacks: {
    callback: function(form) {
      return Form.serialize(form);
    },
    onComplete: function(transport, element) {
      // For backward compatibility, this one is bound to the IPE, and passes
      // the element directly.  It was too often customized, so we don't break it.
      new Effect.Highlight(element, {
        startcolor: this.options.highlightColor, keepBackgroundImage: true });
    },
    onEnterEditMode: null,
    onEnterHover: function(ipe) {
      ipe.element.style.backgroundColor = ipe.options.highlightColor;
      if (ipe._effect)
        ipe._effect.cancel();
    },
    onFailure: function(transport, ipe) {
      alert('Error communication with the server: ' + transport.responseText.stripTags());
    },
    onFormCustomization: null, // Takes the IPE and its generated form, after editor, before controls.
    onLeaveEditMode: null,
    onLeaveHover: function(ipe) {
      ipe._effect = new Effect.Highlight(ipe.element, {
        startcolor: ipe.options.highlightColor, endcolor: ipe.options.highlightEndColor,
        restorecolor: ipe._originalBackground, keepBackgroundImage: true
      });
    }
  },
  Listeners: {
    click: 'enterEditMode',
    keydown: 'checkForEscapeOrReturn',
    mouseover: 'enterHover',
    mouseout: 'leaveHover'
  }
});

Ajax.InPlaceCollectionEditor.DefaultOptions = {
  loadingCollectionText: 'Loading options...'
};

// Delayed observer, like Form.Element.Observer, 
// but waits for delay after last key input
// Ideal for live-search fields

Form.Element.DelayedObserver = Class.create({
  initialize: function(element, delay, callback) {
    this.delay     = delay || 0.5;
    this.element   = $(element);
    this.callback  = callback;
    this.timer     = null;
    this.lastValue = $F(this.element); 
    Event.observe(this.element,'keyup',this.delayedListener.bindAsEventListener(this));
  },
  delayedListener: function(event) {
    if(this.lastValue == $F(this.element)) return;
    if(this.timer) clearTimeout(this.timer);
    this.timer = setTimeout(this.onTimerEvent.bind(this), this.delay * 1000);
    this.lastValue = $F(this.element);
  },
  onTimerEvent: function() {
    this.timer = null;
    this.callback(this.element, $F(this.element));
  }
});
// script.aculo.us dragdrop.js v1.8.1, Thu Jan 03 22:07:12 -0500 2008

// Copyright (c) 2005-2007 Thomas Fuchs (http://script.aculo.us, http://mir.aculo.us)
//           (c) 2005-2007 Sammi Williams (http://www.oriontransfer.co.nz, sammi@oriontransfer.co.nz)
// 
// script.aculo.us is freely distributable under the terms of an MIT-style license.
// For details, see the script.aculo.us web site: http://script.aculo.us/

if(Object.isUndefined(Effect))
  throw("dragdrop.js requires including script.aculo.us' effects.js library");

var Droppables = {
  drops: [],

  remove: function(element) {
    this.drops = this.drops.reject(function(d) { return d.element==$(element) });
  },

  add: function(element) {
    element = $(element);
    var options = Object.extend({
      greedy:     true,
      hoverclass: null,
      tree:       false
    }, arguments[1] || { });

    // cache containers
    if(options.containment) {
      options._containers = [];
      var containment = options.containment;
      if(Object.isArray(containment)) {
        containment.each( function(c) { options._containers.push($(c)) });
      } else {
        options._containers.push($(containment));
      }
    }
    
    if(options.accept) options.accept = [options.accept].flatten();

    Element.makePositioned(element); // fix IE
    options.element = element;

    this.drops.push(options);
  },
  
  findDeepestChild: function(drops) {
    deepest = drops[0];
      
    for (i = 1; i < drops.length; ++i)
      if (Element.isParent(drops[i].element, deepest.element))
        deepest = drops[i];
    
    return deepest;
  },

  isContained: function(element, drop) {
    var containmentNode;
    if(drop.tree) {
      containmentNode = element.treeNode; 
    } else {
      containmentNode = element.parentNode;
    }
    return drop._containers.detect(function(c) { return containmentNode == c });
  },
  
  isAffected: function(point, element, drop) {
    return (
      (drop.element!=element) &&
      ((!drop._containers) ||
        this.isContained(element, drop)) &&
      ((!drop.accept) ||
        (Element.classNames(element).detect( 
          function(v) { return drop.accept.include(v) } ) )) &&
      Position.within(drop.element, point[0], point[1]) );
  },

  deactivate: function(drop) {
    if(drop.hoverclass)
      Element.removeClassName(drop.element, drop.hoverclass);
    this.last_active = null;
  },

  activate: function(drop) {
    if(drop.hoverclass)
      Element.addClassName(drop.element, drop.hoverclass);
    this.last_active = drop;
  },

  show: function(point, element) {
    if(!this.drops.length) return;
    var drop, affected = [];
    
    this.drops.each( function(drop) {
      if(Droppables.isAffected(point, element, drop))
        affected.push(drop);
    });
        
    if(affected.length>0)
      drop = Droppables.findDeepestChild(affected);

    if(this.last_active && this.last_active != drop) this.deactivate(this.last_active);
    if (drop) {
      Position.within(drop.element, point[0], point[1]);
      if(drop.onHover)
        drop.onHover(element, drop.element, Position.overlap(drop.overlap, drop.element));
      
      if (drop != this.last_active) Droppables.activate(drop);
    }
  },

  fire: function(event, element) {
    if(!this.last_active) return;
    Position.prepare();

    if (this.isAffected([Event.pointerX(event), Event.pointerY(event)], element, this.last_active))
      if (this.last_active.onDrop) {
        this.last_active.onDrop(element, this.last_active.element, event); 
        return true; 
      }
  },

  reset: function() {
    if(this.last_active)
      this.deactivate(this.last_active);
  }
}

var Draggables = {
  drags: [],
  observers: [],
  
  register: function(draggable) {
    if(this.drags.length == 0) {
      this.eventMouseUp   = this.endDrag.bindAsEventListener(this);
      this.eventMouseMove = this.updateDrag.bindAsEventListener(this);
      this.eventKeypress  = this.keyPress.bindAsEventListener(this);
      
      Event.observe(document, "mouseup", this.eventMouseUp);
      Event.observe(document, "mousemove", this.eventMouseMove);
      Event.observe(document, "keypress", this.eventKeypress);
    }
    this.drags.push(draggable);
  },
  
  unregister: function(draggable) {
    this.drags = this.drags.reject(function(d) { return d==draggable });
    if(this.drags.length == 0) {
      Event.stopObserving(document, "mouseup", this.eventMouseUp);
      Event.stopObserving(document, "mousemove", this.eventMouseMove);
      Event.stopObserving(document, "keypress", this.eventKeypress);
    }
  },
  
  activate: function(draggable) {
    if(draggable.options.delay) { 
      this._timeout = setTimeout(function() { 
        Draggables._timeout = null; 
        window.focus(); 
        Draggables.activeDraggable = draggable; 
      }.bind(this), draggable.options.delay); 
    } else {
      window.focus(); // allows keypress events if window isn't currently focused, fails for Safari
      this.activeDraggable = draggable;
    }
  },
  
  deactivate: function() {
    this.activeDraggable = null;
  },
  
  updateDrag: function(event) {
    if(!this.activeDraggable) return;
    var pointer = [Event.pointerX(event), Event.pointerY(event)];
    // Mozilla-based browsers fire successive mousemove events with
    // the same coordinates, prevent needless redrawing (moz bug?)
    if(this._lastPointer && (this._lastPointer.inspect() == pointer.inspect())) return;
    this._lastPointer = pointer;
    
    this.activeDraggable.updateDrag(event, pointer);
  },
  
  endDrag: function(event) {
    if(this._timeout) { 
      clearTimeout(this._timeout); 
      this._timeout = null; 
    }
    if(!this.activeDraggable) return;
    this._lastPointer = null;
    this.activeDraggable.endDrag(event);
    this.activeDraggable = null;
  },
  
  keyPress: function(event) {
    if(this.activeDraggable)
      this.activeDraggable.keyPress(event);
  },
  
  addObserver: function(observer) {
    this.observers.push(observer);
    this._cacheObserverCallbacks();
  },
  
  removeObserver: function(element) {  // element instead of observer fixes mem leaks
    this.observers = this.observers.reject( function(o) { return o.element==element });
    this._cacheObserverCallbacks();
  },
  
  notify: function(eventName, draggable, event) {  // 'onStart', 'onEnd', 'onDrag'
    if(this[eventName+'Count'] > 0)
      this.observers.each( function(o) {
        if(o[eventName]) o[eventName](eventName, draggable, event);
      });
    if(draggable.options[eventName]) draggable.options[eventName](draggable, event);
  },
  
  _cacheObserverCallbacks: function() {
    ['onStart','onEnd','onDrag'].each( function(eventName) {
      Draggables[eventName+'Count'] = Draggables.observers.select(
        function(o) { return o[eventName]; }
      ).length;
    });
  }
}

/*--------------------------------------------------------------------------*/

var Draggable = Class.create({
  initialize: function(element) {
    var defaults = {
      handle: false,
      reverteffect: function(element, top_offset, left_offset) {
        var dur = Math.sqrt(Math.abs(top_offset^2)+Math.abs(left_offset^2))*0.02;
        new Effect.Move(element, { x: -left_offset, y: -top_offset, duration: dur,
          queue: {scope:'_draggable', position:'end'}
        });
      },
      endeffect: function(element) {
        var toOpacity = Object.isNumber(element._opacity) ? element._opacity : 1.0;
        new Effect.Opacity(element, {duration:0.2, from:0.7, to:toOpacity, 
          queue: {scope:'_draggable', position:'end'},
          afterFinish: function(){ 
            Draggable._dragging[element] = false 
          }
        }); 
      },
      zindex: 1000,
      revert: false,
      quiet: false,
      scroll: false,
      scrollSensitivity: 20,
      scrollSpeed: 15,
      snap: false,  // false, or xy or [x,y] or function(x,y){ return [x,y] }
      delay: 0
    };
    
    if(!arguments[1] || Object.isUndefined(arguments[1].endeffect))
      Object.extend(defaults, {
        starteffect: function(element) {
          element._opacity = Element.getOpacity(element);
          Draggable._dragging[element] = true;
          new Effect.Opacity(element, {duration:0.2, from:element._opacity, to:0.7}); 
        }
      });
    
    var options = Object.extend(defaults, arguments[1] || { });

    this.element = $(element);
    
    if(options.handle && Object.isString(options.handle))
      this.handle = this.element.down('.'+options.handle, 0);
    
    if(!this.handle) this.handle = $(options.handle);
    if(!this.handle) this.handle = this.element;
    
    if(options.scroll && !options.scroll.scrollTo && !options.scroll.outerHTML) {
      options.scroll = $(options.scroll);
      this._isScrollChild = Element.childOf(this.element, options.scroll);
    }

    Element.makePositioned(this.element); // fix IE    

    this.options  = options;
    this.dragging = false;   

    this.eventMouseDown = this.initDrag.bindAsEventListener(this);
    Event.observe(this.handle, "mousedown", this.eventMouseDown);
    
    Draggables.register(this);
  },
  
  destroy: function() {
    Event.stopObserving(this.handle, "mousedown", this.eventMouseDown);
    Draggables.unregister(this);
  },
  
  currentDelta: function() {
    return([
      parseInt(Element.getStyle(this.element,'left') || '0'),
      parseInt(Element.getStyle(this.element,'top') || '0')]);
  },
  
  initDrag: function(event) {
    if(!Object.isUndefined(Draggable._dragging[this.element]) &&
      Draggable._dragging[this.element]) return;
    if(Event.isLeftClick(event)) {    
      // abort on form elements, fixes a Firefox issue
      var src = Event.element(event);
      if((tag_name = src.tagName.toUpperCase()) && (
        tag_name=='INPUT' ||
        tag_name=='SELECT' ||
        tag_name=='OPTION' ||
        tag_name=='BUTTON' ||
        tag_name=='TEXTAREA')) return;
        
      var pointer = [Event.pointerX(event), Event.pointerY(event)];
      var pos     = Position.cumulativeOffset(this.element);
      this.offset = [0,1].map( function(i) { return (pointer[i] - pos[i]) });
      
      Draggables.activate(this);
      Event.stop(event);
    }
  },
  
  startDrag: function(event) {
    this.dragging = true;
    if(!this.delta)
      this.delta = this.currentDelta();
    
    if(this.options.zindex) {
      this.originalZ = parseInt(Element.getStyle(this.element,'z-index') || 0);
      this.element.style.zIndex = this.options.zindex;
    }
    
    if(this.options.ghosting) {
      this._clone = this.element.cloneNode(true);
      this.element._originallyAbsolute = (this.element.getStyle('position') == 'absolute');
      if (!this.element._originallyAbsolute)
        Position.absolutize(this.element);
      this.element.parentNode.insertBefore(this._clone, this.element);
    }
    
    if(this.options.scroll) {
      if (this.options.scroll == window) {
        var where = this._getWindowScroll(this.options.scroll);
        this.originalScrollLeft = where.left;
        this.originalScrollTop = where.top;
      } else {
        this.originalScrollLeft = this.options.scroll.scrollLeft;
        this.originalScrollTop = this.options.scroll.scrollTop;
      }
    }
    
    Draggables.notify('onStart', this, event);
        
    if(this.options.starteffect) this.options.starteffect(this.element);
  },
  
  updateDrag: function(event, pointer) {
    if(!this.dragging) this.startDrag(event);
    
    if(!this.options.quiet){
      Position.prepare();
      Droppables.show(pointer, this.element);
    }
    
    Draggables.notify('onDrag', this, event);
    
    this.draw(pointer);
    if(this.options.change) this.options.change(this);
    
    if(this.options.scroll) {
      this.stopScrolling();
      
      var p;
      if (this.options.scroll == window) {
        with(this._getWindowScroll(this.options.scroll)) { p = [ left, top, left+width, top+height ]; }
      } else {
        p = Position.page(this.options.scroll);
        p[0] += this.options.scroll.scrollLeft + Position.deltaX;
        p[1] += this.options.scroll.scrollTop + Position.deltaY;
        p.push(p[0]+this.options.scroll.offsetWidth);
        p.push(p[1]+this.options.scroll.offsetHeight);
      }
      var speed = [0,0];
      if(pointer[0] < (p[0]+this.options.scrollSensitivity)) speed[0] = pointer[0]-(p[0]+this.options.scrollSensitivity);
      if(pointer[1] < (p[1]+this.options.scrollSensitivity)) speed[1] = pointer[1]-(p[1]+this.options.scrollSensitivity);
      if(pointer[0] > (p[2]-this.options.scrollSensitivity)) speed[0] = pointer[0]-(p[2]-this.options.scrollSensitivity);
      if(pointer[1] > (p[3]-this.options.scrollSensitivity)) speed[1] = pointer[1]-(p[3]-this.options.scrollSensitivity);
      this.startScrolling(speed);
    }
    
    // fix AppleWebKit rendering
    if(Prototype.Browser.WebKit) window.scrollBy(0,0);
    
    Event.stop(event);
  },
  
  finishDrag: function(event, success) {
    this.dragging = false;
    
    if(this.options.quiet){
      Position.prepare();
      var pointer = [Event.pointerX(event), Event.pointerY(event)];
      Droppables.show(pointer, this.element);
    }

    if(this.options.ghosting) {
      if (!this.element._originallyAbsolute)
        Position.relativize(this.element);
      delete this.element._originallyAbsolute;
      Element.remove(this._clone);
      this._clone = null;
    }

    var dropped = false; 
    if(success) { 
      dropped = Droppables.fire(event, this.element); 
      if (!dropped) dropped = false; 
    }
    if(dropped && this.options.onDropped) this.options.onDropped(this.element);
    Draggables.notify('onEnd', this, event);

    var revert = this.options.revert;
    if(revert && Object.isFunction(revert)) revert = revert(this.element);
    
    var d = this.currentDelta();
    if(revert && this.options.reverteffect) {
      if (dropped == 0 || revert != 'failure')
        this.options.reverteffect(this.element,
          d[1]-this.delta[1], d[0]-this.delta[0]);
    } else {
      this.delta = d;
    }

    if(this.options.zindex)
      this.element.style.zIndex = this.originalZ;

    if(this.options.endeffect) 
      this.options.endeffect(this.element);
      
    Draggables.deactivate(this);
    Droppables.reset();
  },
  
  keyPress: function(event) {
    if(event.keyCode!=Event.KEY_ESC) return;
    this.finishDrag(event, false);
    Event.stop(event);
  },
  
  endDrag: function(event) {
    if(!this.dragging) return;
    this.stopScrolling();
    this.finishDrag(event, true);
    Event.stop(event);
  },
  
  draw: function(point) {
    var pos = Position.cumulativeOffset(this.element);
    if(this.options.ghosting) {
      var r   = Position.realOffset(this.element);
      pos[0] += r[0] - Position.deltaX; pos[1] += r[1] - Position.deltaY;
    }
    
    var d = this.currentDelta();
    pos[0] -= d[0]; pos[1] -= d[1];
    
    if(this.options.scroll && (this.options.scroll != window && this._isScrollChild)) {
      pos[0] -= this.options.scroll.scrollLeft-this.originalScrollLeft;
      pos[1] -= this.options.scroll.scrollTop-this.originalScrollTop;
    }
    
    var p = [0,1].map(function(i){ 
      return (point[i]-pos[i]-this.offset[i]) 
    }.bind(this));
    
    if(this.options.snap) {
      if(Object.isFunction(this.options.snap)) {
        p = this.options.snap(p[0],p[1],this);
      } else {
      if(Object.isArray(this.options.snap)) {
        p = p.map( function(v, i) {
          return (v/this.options.snap[i]).round()*this.options.snap[i] }.bind(this))
      } else {
        p = p.map( function(v) {
          return (v/this.options.snap).round()*this.options.snap }.bind(this))
      }
    }}
    
    var style = this.element.style;
    if((!this.options.constraint) || (this.options.constraint=='horizontal'))
      style.left = p[0] + "px";
    if((!this.options.constraint) || (this.options.constraint=='vertical'))
      style.top  = p[1] + "px";
    
    if(style.visibility=="hidden") style.visibility = ""; // fix gecko rendering
  },
  
  stopScrolling: function() {
    if(this.scrollInterval) {
      clearInterval(this.scrollInterval);
      this.scrollInterval = null;
      Draggables._lastScrollPointer = null;
    }
  },
  
  startScrolling: function(speed) {
    if(!(speed[0] || speed[1])) return;
    this.scrollSpeed = [speed[0]*this.options.scrollSpeed,speed[1]*this.options.scrollSpeed];
    this.lastScrolled = new Date();
    this.scrollInterval = setInterval(this.scroll.bind(this), 10);
  },
  
  scroll: function() {
    var current = new Date();
    var delta = current - this.lastScrolled;
    this.lastScrolled = current;
    if(this.options.scroll == window) {
      with (this._getWindowScroll(this.options.scroll)) {
        if (this.scrollSpeed[0] || this.scrollSpeed[1]) {
          var d = delta / 1000;
          this.options.scroll.scrollTo( left + d*this.scrollSpeed[0], top + d*this.scrollSpeed[1] );
        }
      }
    } else {
      this.options.scroll.scrollLeft += this.scrollSpeed[0] * delta / 1000;
      this.options.scroll.scrollTop  += this.scrollSpeed[1] * delta / 1000;
    }
    
    Position.prepare();
    Droppables.show(Draggables._lastPointer, this.element);
    Draggables.notify('onDrag', this);
    if (this._isScrollChild) {
      Draggables._lastScrollPointer = Draggables._lastScrollPointer || $A(Draggables._lastPointer);
      Draggables._lastScrollPointer[0] += this.scrollSpeed[0] * delta / 1000;
      Draggables._lastScrollPointer[1] += this.scrollSpeed[1] * delta / 1000;
      if (Draggables._lastScrollPointer[0] < 0)
        Draggables._lastScrollPointer[0] = 0;
      if (Draggables._lastScrollPointer[1] < 0)
        Draggables._lastScrollPointer[1] = 0;
      this.draw(Draggables._lastScrollPointer);
    }
    
    if(this.options.change) this.options.change(this);
  },
  
  _getWindowScroll: function(w) {
    var T, L, W, H;
    with (w.document) {
      if (w.document.documentElement && documentElement.scrollTop) {
        T = documentElement.scrollTop;
        L = documentElement.scrollLeft;
      } else if (w.document.body) {
        T = body.scrollTop;
        L = body.scrollLeft;
      }
      if (w.innerWidth) {
        W = w.innerWidth;
        H = w.innerHeight;
      } else if (w.document.documentElement && documentElement.clientWidth) {
        W = documentElement.clientWidth;
        H = documentElement.clientHeight;
      } else {
        W = body.offsetWidth;
        H = body.offsetHeight
      }
    }
    return { top: T, left: L, width: W, height: H };
  }
});

Draggable._dragging = { };

/*--------------------------------------------------------------------------*/

var SortableObserver = Class.create({
  initialize: function(element, observer) {
    this.element   = $(element);
    this.observer  = observer;
    this.lastValue = Sortable.serialize(this.element);
  },
  
  onStart: function() {
    this.lastValue = Sortable.serialize(this.element);
  },
  
  onEnd: function() {
    Sortable.unmark();
    if(this.lastValue != Sortable.serialize(this.element))
      this.observer(this.element)
  }
});

var Sortable = {
  SERIALIZE_RULE: /^[^_\-](?:[A-Za-z0-9\-\_]*)[_](.*)$/,
  
  sortables: { },
  
  _findRootElement: function(element) {
    while (element.tagName.toUpperCase() != "BODY") {  
      if(element.id && Sortable.sortables[element.id]) return element;
      element = element.parentNode;
    }
  },

  options: function(element) {
    element = Sortable._findRootElement($(element));
    if(!element) return;
    return Sortable.sortables[element.id];
  },
  
  destroy: function(element){
    var s = Sortable.options(element);
    
    if(s) {
      Draggables.removeObserver(s.element);
      s.droppables.each(function(d){ Droppables.remove(d) });
      s.draggables.invoke('destroy');
      
      delete Sortable.sortables[s.element.id];
    }
  },

  create: function(element) {
    element = $(element);
    var options = Object.extend({ 
      element:     element,
      tag:         'li',       // assumes li children, override with tag: 'tagname'
      dropOnEmpty: false,
      tree:        false,
      treeTag:     'ul',
      overlap:     'vertical', // one of 'vertical', 'horizontal'
      constraint:  'vertical', // one of 'vertical', 'horizontal', false
      containment: element,    // also takes array of elements (or id's); or false
      handle:      false,      // or a CSS class
      only:        false,
      delay:       0,
      hoverclass:  null,
      ghosting:    false,
      quiet:       false, 
      scroll:      false,
      scrollSensitivity: 20,
      scrollSpeed: 15,
      format:      this.SERIALIZE_RULE,
      
      // these take arrays of elements or ids and can be 
      // used for better initialization performance
      elements:    false,
      handles:     false,
      
      onChange:    Prototype.emptyFunction,
      onUpdate:    Prototype.emptyFunction
    }, arguments[1] || { });

    // clear any old sortable with same element
    this.destroy(element);

    // build options for the draggables
    var options_for_draggable = {
      revert:      true,
      quiet:       options.quiet,
      scroll:      options.scroll,
      scrollSpeed: options.scrollSpeed,
      scrollSensitivity: options.scrollSensitivity,
      delay:       options.delay,
      ghosting:    options.ghosting,
      constraint:  options.constraint,
      handle:      options.handle };

    if(options.starteffect)
      options_for_draggable.starteffect = options.starteffect;

    if(options.reverteffect)
      options_for_draggable.reverteffect = options.reverteffect;
    else
      if(options.ghosting) options_for_draggable.reverteffect = function(element) {
        element.style.top  = 0;
        element.style.left = 0;
      };

    if(options.endeffect)
      options_for_draggable.endeffect = options.endeffect;

    if(options.zindex)
      options_for_draggable.zindex = options.zindex;

    // build options for the droppables  
    var options_for_droppable = {
      overlap:     options.overlap,
      containment: options.containment,
      tree:        options.tree,
      hoverclass:  options.hoverclass,
      onHover:     Sortable.onHover
    }
    
    var options_for_tree = {
      onHover:      Sortable.onEmptyHover,
      overlap:      options.overlap,
      containment:  options.containment,
      hoverclass:   options.hoverclass
    }

    // fix for gecko engine
    Element.cleanWhitespace(element); 

    options.draggables = [];
    options.droppables = [];

    // drop on empty handling
    if(options.dropOnEmpty || options.tree) {
      Droppables.add(element, options_for_tree);
      options.droppables.push(element);
    }

    (options.elements || this.findElements(element, options) || []).each( function(e,i) {
      var handle = options.handles ? $(options.handles[i]) :
        (options.handle ? $(e).select('.' + options.handle)[0] : e); 
      options.draggables.push(
        new Draggable(e, Object.extend(options_for_draggable, { handle: handle })));
      Droppables.add(e, options_for_droppable);
      if(options.tree) e.treeNode = element;
      options.droppables.push(e);      
    });
    
    if(options.tree) {
      (Sortable.findTreeElements(element, options) || []).each( function(e) {
        Droppables.add(e, options_for_tree);
        e.treeNode = element;
        options.droppables.push(e);
      });
    }

    // keep reference
    this.sortables[element.id] = options;

    // for onupdate
    Draggables.addObserver(new SortableObserver(element, options.onUpdate));

  },

  // return all suitable-for-sortable elements in a guaranteed order
  findElements: function(element, options) {
    return Element.findChildren(
      element, options.only, options.tree ? true : false, options.tag);
  },
  
  findTreeElements: function(element, options) {
    return Element.findChildren(
      element, options.only, options.tree ? true : false, options.treeTag);
  },

  onHover: function(element, dropon, overlap) {
    if(Element.isParent(dropon, element)) return;

    if(overlap > .33 && overlap < .66 && Sortable.options(dropon).tree) {
      return;
    } else if(overlap>0.5) {
      Sortable.mark(dropon, 'before');
      if(dropon.previousSibling != element) {
        var oldParentNode = element.parentNode;
        element.style.visibility = "hidden"; // fix gecko rendering
        dropon.parentNode.insertBefore(element, dropon);
        if(dropon.parentNode!=oldParentNode) 
          Sortable.options(oldParentNode).onChange(element);
        Sortable.options(dropon.parentNode).onChange(element);
      }
    } else {
      Sortable.mark(dropon, 'after');
      var nextElement = dropon.nextSibling || null;
      if(nextElement != element) {
        var oldParentNode = element.parentNode;
        element.style.visibility = "hidden"; // fix gecko rendering
        dropon.parentNode.insertBefore(element, nextElement);
        if(dropon.parentNode!=oldParentNode) 
          Sortable.options(oldParentNode).onChange(element);
        Sortable.options(dropon.parentNode).onChange(element);
      }
    }
  },
  
  onEmptyHover: function(element, dropon, overlap) {
    var oldParentNode = element.parentNode;
    var droponOptions = Sortable.options(dropon);
        
    if(!Element.isParent(dropon, element)) {
      var index;
      
      var children = Sortable.findElements(dropon, {tag: droponOptions.tag, only: droponOptions.only});
      var child = null;
            
      if(children) {
        var offset = Element.offsetSize(dropon, droponOptions.overlap) * (1.0 - overlap);
        
        for (index = 0; index < children.length; index += 1) {
          if (offset - Element.offsetSize (children[index], droponOptions.overlap) >= 0) {
            offset -= Element.offsetSize (children[index], droponOptions.overlap);
          } else if (offset - (Element.offsetSize (children[index], droponOptions.overlap) / 2) >= 0) {
            child = index + 1 < children.length ? children[index + 1] : null;
            break;
          } else {
            child = children[index];
            break;
          }
        }
      }
      
      dropon.insertBefore(element, child);
      
      Sortable.options(oldParentNode).onChange(element);
      droponOptions.onChange(element);
    }
  },

  unmark: function() {
    if(Sortable._marker) Sortable._marker.hide();
  },

  mark: function(dropon, position) {
    // mark on ghosting only
    var sortable = Sortable.options(dropon.parentNode);
    if(sortable && !sortable.ghosting) return; 

    if(!Sortable._marker) {
      Sortable._marker = 
        ($('dropmarker') || Element.extend(document.createElement('DIV'))).
          hide().addClassName('dropmarker').setStyle({position:'absolute'});
      document.getElementsByTagName("body").item(0).appendChild(Sortable._marker);
    }    
    var offsets = Position.cumulativeOffset(dropon);
    Sortable._marker.setStyle({left: offsets[0]+'px', top: offsets[1] + 'px'});
    
    if(position=='after')
      if(sortable.overlap == 'horizontal') 
        Sortable._marker.setStyle({left: (offsets[0]+dropon.clientWidth) + 'px'});
      else
        Sortable._marker.setStyle({top: (offsets[1]+dropon.clientHeight) + 'px'});
    
    Sortable._marker.show();
  },
  
  _tree: function(element, options, parent) {
    var children = Sortable.findElements(element, options) || [];
  
    for (var i = 0; i < children.length; ++i) {
      var match = children[i].id.match(options.format);

      if (!match) continue;
      
      var child = {
        id: encodeURIComponent(match ? match[1] : null),
        element: element,
        parent: parent,
        children: [],
        position: parent.children.length,
        container: $(children[i]).down(options.treeTag)
      }
      
      /* Get the element containing the children and recurse over it */
      if (child.container)
        this._tree(child.container, options, child)
      
      parent.children.push (child);
    }

    return parent; 
  },

  tree: function(element) {
    element = $(element);
    var sortableOptions = this.options(element);
    var options = Object.extend({
      tag: sortableOptions.tag,
      treeTag: sortableOptions.treeTag,
      only: sortableOptions.only,
      name: element.id,
      format: sortableOptions.format
    }, arguments[1] || { });
    
    var root = {
      id: null,
      parent: null,
      children: [],
      container: element,
      position: 0
    }
    
    return Sortable._tree(element, options, root);
  },

  /* Construct a [i] index for a particular node */
  _constructIndex: function(node) {
    var index = '';
    do {
      if (node.id) index = '[' + node.position + ']' + index;
    } while ((node = node.parent) != null);
    return index;
  },

  sequence: function(element) {
    element = $(element);
    var options = Object.extend(this.options(element), arguments[1] || { });
    
    return $(this.findElements(element, options) || []).map( function(item) {
      return item.id.match(options.format) ? item.id.match(options.format)[1] : '';
    });
  },

  setSequence: function(element, new_sequence) {
    element = $(element);
    var options = Object.extend(this.options(element), arguments[2] || { });
    
    var nodeMap = { };
    this.findElements(element, options).each( function(n) {
        if (n.id.match(options.format))
            nodeMap[n.id.match(options.format)[1]] = [n, n.parentNode];
        n.parentNode.removeChild(n);
    });
   
    new_sequence.each(function(ident) {
      var n = nodeMap[ident];
      if (n) {
        n[1].appendChild(n[0]);
        delete nodeMap[ident];
      }
    });
  },
  
  serialize: function(element) {
    element = $(element);
    var options = Object.extend(Sortable.options(element), arguments[1] || { });
    var name = encodeURIComponent(
      (arguments[1] && arguments[1].name) ? arguments[1].name : element.id);
    
    if (options.tree) {
      return Sortable.tree(element, arguments[1]).children.map( function (item) {
        return [name + Sortable._constructIndex(item) + "[id]=" + 
                encodeURIComponent(item.id)].concat(item.children.map(arguments.callee));
      }).flatten().join('&');
    } else {
      return Sortable.sequence(element, arguments[1]).map( function(item) {
        return name + "[]=" + encodeURIComponent(item);
      }).join('&');
    }
  }
}

// Returns true if child is contained within element
Element.isParent = function(child, element) {
  if (!child.parentNode || child == element) return false;
  if (child.parentNode == element) return true;
  return Element.isParent(child.parentNode, element);
}

Element.findChildren = function(element, only, recursive, tagName) {   
  if(!element.hasChildNodes()) return null;
  tagName = tagName.toUpperCase();
  if(only) only = [only].flatten();
  var elements = [];
  $A(element.childNodes).each( function(e) {
    if(e.tagName && e.tagName.toUpperCase()==tagName &&
      (!only || (Element.classNames(e).detect(function(v) { return only.include(v) }))))
        elements.push(e);
    if(recursive) {
      var grandchildren = Element.findChildren(e, only, recursive, tagName);
      if(grandchildren) elements.push(grandchildren);
    }
  });

  return (elements.length>0 ? elements.flatten() : []);
}

Element.offsetSize = function (element, type) {
  return element['offset' + ((type=='vertical' || type=='height') ? 'Height' : 'Width')];
}
// script.aculo.us slider.js v1.8.1, Thu Jan 03 22:07:12 -0500 2008

// Copyright (c) 2005-2007 Marty Haught, Thomas Fuchs 
//
// script.aculo.us is freely distributable under the terms of an MIT-style license.
// For details, see the script.aculo.us web site: http://script.aculo.us/

if (!Control) var Control = { };

// options:
//  axis: 'vertical', or 'horizontal' (default)
//
// callbacks:
//  onChange(value)
//  onSlide(value)
Control.Slider = Class.create({
  initialize: function(handle, track, options) {
    var slider = this;
    
    if (Object.isArray(handle)) {
      this.handles = handle.collect( function(e) { return $(e) });
    } else {
      this.handles = [$(handle)];
    }
    
    this.track   = $(track);
    this.options = options || { };

    this.axis      = this.options.axis || 'horizontal';
    this.increment = this.options.increment || 1;
    this.step      = parseInt(this.options.step || '1');
    this.range     = this.options.range || $R(0,1);
    
    this.value     = 0; // assure backwards compat
    this.values    = this.handles.map( function() { return 0 });
    this.spans     = this.options.spans ? this.options.spans.map(function(s){ return $(s) }) : false;
    this.options.startSpan = $(this.options.startSpan || null);
    this.options.endSpan   = $(this.options.endSpan || null);

    this.restricted = this.options.restricted || false;

    this.maximum   = this.options.maximum || this.range.end;
    this.minimum   = this.options.minimum || this.range.start;

    // Will be used to align the handle onto the track, if necessary
    this.alignX = parseInt(this.options.alignX || '0');
    this.alignY = parseInt(this.options.alignY || '0');
    
    this.trackLength = this.maximumOffset() - this.minimumOffset();

    this.handleLength = this.isVertical() ? 
      (this.handles[0].offsetHeight != 0 ? 
        this.handles[0].offsetHeight : this.handles[0].style.height.replace(/px$/,"")) : 
      (this.handles[0].offsetWidth != 0 ? this.handles[0].offsetWidth : 
        this.handles[0].style.width.replace(/px$/,""));

    this.active   = false;
    this.dragging = false;
    this.disabled = false;

    if (this.options.disabled) this.setDisabled();

    // Allowed values array
    this.allowedValues = this.options.values ? this.options.values.sortBy(Prototype.K) : false;
    if (this.allowedValues) {
      this.minimum = this.allowedValues.min();
      this.maximum = this.allowedValues.max();
    }

    this.eventMouseDown = this.startDrag.bindAsEventListener(this);
    this.eventMouseUp   = this.endDrag.bindAsEventListener(this);
    this.eventMouseMove = this.update.bindAsEventListener(this);

    // Initialize handles in reverse (make sure first handle is active)
    this.handles.each( function(h,i) {
      i = slider.handles.length-1-i;
      slider.setValue(parseFloat(
        (Object.isArray(slider.options.sliderValue) ? 
          slider.options.sliderValue[i] : slider.options.sliderValue) || 
         slider.range.start), i);
      h.makePositioned().observe("mousedown", slider.eventMouseDown);
    });
    
    this.track.observe("mousedown", this.eventMouseDown);
    document.observe("mouseup", this.eventMouseUp);
    document.observe("mousemove", this.eventMouseMove);
    
    this.initialized = true;
  },
  dispose: function() {
    var slider = this;    
    Event.stopObserving(this.track, "mousedown", this.eventMouseDown);
    Event.stopObserving(document, "mouseup", this.eventMouseUp);
    Event.stopObserving(document, "mousemove", this.eventMouseMove);
    this.handles.each( function(h) {
      Event.stopObserving(h, "mousedown", slider.eventMouseDown);
    });
  },
  setDisabled: function(){
    this.disabled = true;
  },
  setEnabled: function(){
    this.disabled = false;
  },  
  getNearestValue: function(value){
    if (this.allowedValues){
      if (value >= this.allowedValues.max()) return(this.allowedValues.max());
      if (value <= this.allowedValues.min()) return(this.allowedValues.min());
      
      var offset = Math.abs(this.allowedValues[0] - value);
      var newValue = this.allowedValues[0];
      this.allowedValues.each( function(v) {
        var currentOffset = Math.abs(v - value);
        if (currentOffset <= offset){
          newValue = v;
          offset = currentOffset;
        } 
      });
      return newValue;
    }
    if (value > this.range.end) return this.range.end;
    if (value < this.range.start) return this.range.start;
    return value;
  },
  setValue: function(sliderValue, handleIdx){
    if (!this.active) {
      this.activeHandleIdx = handleIdx || 0;
      this.activeHandle    = this.handles[this.activeHandleIdx];
      this.updateStyles();
    }
    handleIdx = handleIdx || this.activeHandleIdx || 0;
    if (this.initialized && this.restricted) {
      if ((handleIdx>0) && (sliderValue<this.values[handleIdx-1]))
        sliderValue = this.values[handleIdx-1];
      if ((handleIdx < (this.handles.length-1)) && (sliderValue>this.values[handleIdx+1]))
        sliderValue = this.values[handleIdx+1];
    }
    sliderValue = this.getNearestValue(sliderValue);
    this.values[handleIdx] = sliderValue;
    this.value = this.values[0]; // assure backwards compat
    
    this.handles[handleIdx].style[this.isVertical() ? 'top' : 'left'] = 
      this.translateToPx(sliderValue);
    
    this.drawSpans();
    if (!this.dragging || !this.event) this.updateFinished();
  },
  setValueBy: function(delta, handleIdx) {
    this.setValue(this.values[handleIdx || this.activeHandleIdx || 0] + delta, 
      handleIdx || this.activeHandleIdx || 0);
  },
  translateToPx: function(value) {
    return Math.round(
      ((this.trackLength-this.handleLength)/(this.range.end-this.range.start)) * 
      (value - this.range.start)) + "px";
  },
  translateToValue: function(offset) {
    return ((offset/(this.trackLength-this.handleLength) * 
      (this.range.end-this.range.start)) + this.range.start);
  },
  getRange: function(range) {
    var v = this.values.sortBy(Prototype.K); 
    range = range || 0;
    return $R(v[range],v[range+1]);
  },
  minimumOffset: function(){
    return(this.isVertical() ? this.alignY : this.alignX);
  },
  maximumOffset: function(){
    return(this.isVertical() ? 
      (this.track.offsetHeight != 0 ? this.track.offsetHeight :
        this.track.style.height.replace(/px$/,"")) - this.alignY : 
      (this.track.offsetWidth != 0 ? this.track.offsetWidth : 
        this.track.style.width.replace(/px$/,"")) - this.alignX);
  },  
  isVertical:  function(){
    return (this.axis == 'vertical');
  },
  drawSpans: function() {
    var slider = this;
    if (this.spans)
      $R(0, this.spans.length-1).each(function(r) { slider.setSpan(slider.spans[r], slider.getRange(r)) });
    if (this.options.startSpan)
      this.setSpan(this.options.startSpan,
        $R(0, this.values.length>1 ? this.getRange(0).min() : this.value ));
    if (this.options.endSpan)
      this.setSpan(this.options.endSpan, 
        $R(this.values.length>1 ? this.getRange(this.spans.length-1).max() : this.value, this.maximum));
  },
  setSpan: function(span, range) {
    if (this.isVertical()) {
      span.style.top = this.translateToPx(range.start);
      span.style.height = this.translateToPx(range.end - range.start + this.range.start);
    } else {
      span.style.left = this.translateToPx(range.start);
      span.style.width = this.translateToPx(range.end - range.start + this.range.start);
    }
  },
  updateStyles: function() {
    this.handles.each( function(h){ Element.removeClassName(h, 'selected') });
    Element.addClassName(this.activeHandle, 'selected');
  },
  startDrag: function(event) {
    if (Event.isLeftClick(event)) {
      if (!this.disabled){
        this.active = true;
        
        var handle = Event.element(event);
        var pointer  = [Event.pointerX(event), Event.pointerY(event)];
        var track = handle;
        if (track==this.track) {
          var offsets  = Position.cumulativeOffset(this.track); 
          this.event = event;
          this.setValue(this.translateToValue( 
           (this.isVertical() ? pointer[1]-offsets[1] : pointer[0]-offsets[0])-(this.handleLength/2)
          ));
          var offsets  = Position.cumulativeOffset(this.activeHandle);
          this.offsetX = (pointer[0] - offsets[0]);
          this.offsetY = (pointer[1] - offsets[1]);
        } else {
          // find the handle (prevents issues with Safari)
          while((this.handles.indexOf(handle) == -1) && handle.parentNode) 
            handle = handle.parentNode;
            
          if (this.handles.indexOf(handle)!=-1) {
            this.activeHandle    = handle;
            this.activeHandleIdx = this.handles.indexOf(this.activeHandle);
            this.updateStyles();
            
            var offsets  = Position.cumulativeOffset(this.activeHandle);
            this.offsetX = (pointer[0] - offsets[0]);
            this.offsetY = (pointer[1] - offsets[1]);
          }
        }
      }
      Event.stop(event);
    }
  },
  update: function(event) {
   if (this.active) {
      if (!this.dragging) this.dragging = true;
      this.draw(event);
      if (Prototype.Browser.WebKit) window.scrollBy(0,0);
      Event.stop(event);
   }
  },
  draw: function(event) {
    var pointer = [Event.pointerX(event), Event.pointerY(event)];
    var offsets = Position.cumulativeOffset(this.track);
    pointer[0] -= this.offsetX + offsets[0];
    pointer[1] -= this.offsetY + offsets[1];
    this.event = event;
    this.setValue(this.translateToValue( this.isVertical() ? pointer[1] : pointer[0] ));
    if (this.initialized && this.options.onSlide)
      this.options.onSlide(this.values.length>1 ? this.values : this.value, this);
  },
  endDrag: function(event) {
    if (this.active && this.dragging) {
      this.finishDrag(event, true);
      Event.stop(event);
    }
    this.active = false;
    this.dragging = false;
  },  
  finishDrag: function(event, success) {
    this.active = false;
    this.dragging = false;
    this.updateFinished();
  },
  updateFinished: function() {
    if (this.initialized && this.options.onChange) 
      this.options.onChange(this.values.length>1 ? this.values : this.value, this);
    this.event = null;
  }
});
// script.aculo.us sound.js v1.8.1, Thu Jan 03 22:07:12 -0500 2008

// Copyright (c) 2005-2007 Thomas Fuchs (http://script.aculo.us, http://mir.aculo.us)
//
// Based on code created by Jules Gravinese (http://www.webveteran.com/)
//
// script.aculo.us is freely distributable under the terms of an MIT-style license.
// For details, see the script.aculo.us web site: http://script.aculo.us/

Sound = {
  tracks: {},
  _enabled: true,
  template:
    new Template('<embed style="height:0" id="sound_#{track}_#{id}" src="#{url}" loop="false" autostart="true" hidden="true"/>'),
  enable: function(){
    Sound._enabled = true;
  },
  disable: function(){
    Sound._enabled = false;
  },
  play: function(url){
    if(!Sound._enabled) return;
    var options = Object.extend({
      track: 'global', url: url, replace: false
    }, arguments[1] || {});
    
    if(options.replace && this.tracks[options.track]) {
      $R(0, this.tracks[options.track].id).each(function(id){
        var sound = $('sound_'+options.track+'_'+id);
        sound.Stop && sound.Stop();
        sound.remove();
      })
      this.tracks[options.track] = null;
    }
      
    if(!this.tracks[options.track])
      this.tracks[options.track] = { id: 0 }
    else
      this.tracks[options.track].id++;
      
    options.id = this.tracks[options.track].id;
    $$('body')[0].insert( 
      Prototype.Browser.IE ? new Element('bgsound',{
        id: 'sound_'+options.track+'_'+options.id,
        src: options.url, loop: 1, autostart: true
      }) : Sound.template.evaluate(options));
  }
};

if(Prototype.Browser.Gecko && navigator.userAgent.indexOf("Win") > 0){
  if(navigator.plugins && $A(navigator.plugins).detect(function(p){ return p.name.indexOf('QuickTime') != -1 }))
    Sound.template = new Template('<object id="sound_#{track}_#{id}" width="0" height="0" type="audio/mpeg" data="#{url}"/>')
  else
    Sound.play = function(){}
}
// script.aculo.us unittest.js v1.8.1, Thu Jan 03 22:07:12 -0500 2008

// Copyright (c) 2005-2007 Thomas Fuchs (http://script.aculo.us, http://mir.aculo.us)
//           (c) 2005-2007 Jon Tirsen (http://www.tirsen.com)
//           (c) 2005-2007 Michael Schuerig (http://www.schuerig.de/michael/)
//
// script.aculo.us is freely distributable under the terms of an MIT-style license.
// For details, see the script.aculo.us web site: http://script.aculo.us/

// experimental, Firefox-only
Event.simulateMouse = function(element, eventName) {
  var options = Object.extend({
    pointerX: 0,
    pointerY: 0,
    buttons:  0,
    ctrlKey:  false,
    altKey:   false,
    shiftKey: false,
    metaKey:  false
  }, arguments[2] || {});
  var oEvent = document.createEvent("MouseEvents");
  oEvent.initMouseEvent(eventName, true, true, document.defaultView, 
    options.buttons, options.pointerX, options.pointerY, options.pointerX, options.pointerY, 
    options.ctrlKey, options.altKey, options.shiftKey, options.metaKey, 0, $(element));
  
  if(this.mark) Element.remove(this.mark);
  this.mark = document.createElement('div');
  this.mark.appendChild(document.createTextNode(" "));
  document.body.appendChild(this.mark);
  this.mark.style.position = 'absolute';
  this.mark.style.top = options.pointerY + "px";
  this.mark.style.left = options.pointerX + "px";
  this.mark.style.width = "5px";
  this.mark.style.height = "5px;";
  this.mark.style.borderTop = "1px solid red;"
  this.mark.style.borderLeft = "1px solid red;"
  
  if(this.step)
    alert('['+new Date().getTime().toString()+'] '+eventName+'/'+Test.Unit.inspect(options));
  
  $(element).dispatchEvent(oEvent);
};

// Note: Due to a fix in Firefox 1.0.5/6 that probably fixed "too much", this doesn't work in 1.0.6 or DP2.
// You need to downgrade to 1.0.4 for now to get this working
// See https://bugzilla.mozilla.org/show_bug.cgi?id=289940 for the fix that fixed too much
Event.simulateKey = function(element, eventName) {
  var options = Object.extend({
    ctrlKey: false,
    altKey: false,
    shiftKey: false,
    metaKey: false,
    keyCode: 0,
    charCode: 0
  }, arguments[2] || {});

  var oEvent = document.createEvent("KeyEvents");
  oEvent.initKeyEvent(eventName, true, true, window, 
    options.ctrlKey, options.altKey, options.shiftKey, options.metaKey,
    options.keyCode, options.charCode );
  $(element).dispatchEvent(oEvent);
};

Event.simulateKeys = function(element, command) {
  for(var i=0; i<command.length; i++) {
    Event.simulateKey(element,'keypress',{charCode:command.charCodeAt(i)});
  }
};

var Test = {}
Test.Unit = {};

// security exception workaround
Test.Unit.inspect = Object.inspect;

Test.Unit.Logger = Class.create();
Test.Unit.Logger.prototype = {
  initialize: function(log) {
    this.log = $(log);
    if (this.log) {
      this._createLogTable();
    }
  },
  start: function(testName) {
    if (!this.log) return;
    this.testName = testName;
    this.lastLogLine = document.createElement('tr');
    this.statusCell = document.createElement('td');
    this.nameCell = document.createElement('td');
    this.nameCell.className = "nameCell";
    this.nameCell.appendChild(document.createTextNode(testName));
    this.messageCell = document.createElement('td');
    this.lastLogLine.appendChild(this.statusCell);
    this.lastLogLine.appendChild(this.nameCell);
    this.lastLogLine.appendChild(this.messageCell);
    this.loglines.appendChild(this.lastLogLine);
  },
  finish: function(status, summary) {
    if (!this.log) return;
    this.lastLogLine.className = status;
    this.statusCell.innerHTML = status;
    this.messageCell.innerHTML = this._toHTML(summary);
    this.addLinksToResults();
  },
  message: function(message) {
    if (!this.log) return;
    this.messageCell.innerHTML = this._toHTML(message);
  },
  summary: function(summary) {
    if (!this.log) return;
    this.logsummary.innerHTML = this._toHTML(summary);
  },
  _createLogTable: function() {
    this.log.innerHTML =
    '<div id="logsummary"></div>' +
    '<table id="logtable">' +
    '<thead><tr><th>Status</th><th>Test</th><th>Message</th></tr></thead>' +
    '<tbody id="loglines"></tbody>' +
    '</table>';
    this.logsummary = $('logsummary')
    this.loglines = $('loglines');
  },
  _toHTML: function(txt) {
    return txt.escapeHTML().replace(/\n/g,"<br/>");
  },
  addLinksToResults: function(){ 
    $$("tr.failed .nameCell").each( function(td){ // todo: limit to children of this.log
      td.title = "Run only this test"
      Event.observe(td, 'click', function(){ window.location.search = "?tests=" + td.innerHTML;});
    });
    $$("tr.passed .nameCell").each( function(td){ // todo: limit to children of this.log
      td.title = "Run all tests"
      Event.observe(td, 'click', function(){ window.location.search = "";});
    });
  }
}

Test.Unit.Runner = Class.create();
Test.Unit.Runner.prototype = {
  initialize: function(testcases) {
    this.options = Object.extend({
      testLog: 'testlog'
    }, arguments[1] || {});
    this.options.resultsURL = this.parseResultsURLQueryParameter();
    this.options.tests      = this.parseTestsQueryParameter();
    if (this.options.testLog) {
      this.options.testLog = $(this.options.testLog) || null;
    }
    if(this.options.tests) {
      this.tests = [];
      for(var i = 0; i < this.options.tests.length; i++) {
        if(/^test/.test(this.options.tests[i])) {
          this.tests.push(new Test.Unit.Testcase(this.options.tests[i], testcases[this.options.tests[i]], testcases["setup"], testcases["teardown"]));
        }
      }
    } else {
      if (this.options.test) {
        this.tests = [new Test.Unit.Testcase(this.options.test, testcases[this.options.test], testcases["setup"], testcases["teardown"])];
      } else {
        this.tests = [];
        for(var testcase in testcases) {
          if(/^test/.test(testcase)) {
            this.tests.push(
               new Test.Unit.Testcase(
                 this.options.context ? ' -> ' + this.options.titles[testcase] : testcase, 
                 testcases[testcase], testcases["setup"], testcases["teardown"]
               ));
          }
        }
      }
    }
    this.currentTest = 0;
    this.logger = new Test.Unit.Logger(this.options.testLog);
    setTimeout(this.runTests.bind(this), 1000);
  },
  parseResultsURLQueryParameter: function() {
    return window.location.search.parseQuery()["resultsURL"];
  },
  parseTestsQueryParameter: function(){
    if (window.location.search.parseQuery()["tests"]){
        return window.location.search.parseQuery()["tests"].split(',');
    };
  },
  // Returns:
  //  "ERROR" if there was an error,
  //  "FAILURE" if there was a failure, or
  //  "SUCCESS" if there was neither
  getResult: function() {
    var hasFailure = false;
    for(var i=0;i<this.tests.length;i++) {
      if (this.tests[i].errors > 0) {
        return "ERROR";
      }
      if (this.tests[i].failures > 0) {
        hasFailure = true;
      }
    }
    if (hasFailure) {
      return "FAILURE";
    } else {
      return "SUCCESS";
    }
  },
  postResults: function() {
    if (this.options.resultsURL) {
      new Ajax.Request(this.options.resultsURL, 
        { method: 'get', parameters: 'result=' + this.getResult(), asynchronous: false });
    }
  },
  runTests: function() {
    var test = this.tests[this.currentTest];
    if (!test) {
      // finished!
      this.postResults();
      this.logger.summary(this.summary());
      return;
    }
    if(!test.isWaiting) {
      this.logger.start(test.name);
    }
    test.run();
    if(test.isWaiting) {
      this.logger.message("Waiting for " + test.timeToWait + "ms");
      setTimeout(this.runTests.bind(this), test.timeToWait || 1000);
    } else {
      this.logger.finish(test.status(), test.summary());
      this.currentTest++;
      // tail recursive, hopefully the browser will skip the stackframe
      this.runTests();
    }
  },
  summary: function() {
    var assertions = 0;
    var failures = 0;
    var errors = 0;
    var messages = [];
    for(var i=0;i<this.tests.length;i++) {
      assertions +=   this.tests[i].assertions;
      failures   +=   this.tests[i].failures;
      errors     +=   this.tests[i].errors;
    }
    return (
      (this.options.context ? this.options.context + ': ': '') + 
      this.tests.length + " tests, " + 
      assertions + " assertions, " + 
      failures   + " failures, " +
      errors     + " errors");
  }
}

Test.Unit.Assertions = Class.create();
Test.Unit.Assertions.prototype = {
  initialize: function() {
    this.assertions = 0;
    this.failures   = 0;
    this.errors     = 0;
    this.messages   = [];
  },
  summary: function() {
    return (
      this.assertions + " assertions, " + 
      this.failures   + " failures, " +
      this.errors     + " errors" + "\n" +
      this.messages.join("\n"));
  },
  pass: function() {
    this.assertions++;
  },
  fail: function(message) {
    this.failures++;
    this.messages.push("Failure: " + message);
  },
  info: function(message) {
    this.messages.push("Info: " + message);
  },
  error: function(error) {
    this.errors++;
    this.messages.push(error.name + ": "+ error.message + "(" + Test.Unit.inspect(error) +")");
  },
  status: function() {
    if (this.failures > 0) return 'failed';
    if (this.errors > 0) return 'error';
    return 'passed';
  },
  assert: function(expression) {
    var message = arguments[1] || 'assert: got "' + Test.Unit.inspect(expression) + '"';
    try { expression ? this.pass() : 
      this.fail(message); }
    catch(e) { this.error(e); }
  },
  assertEqual: function(expected, actual) {
    var message = arguments[2] || "assertEqual";
    try { (expected == actual) ? this.pass() :
      this.fail(message + ': expected "' + Test.Unit.inspect(expected) + 
        '", actual "' + Test.Unit.inspect(actual) + '"'); }
    catch(e) { this.error(e); }
  },
  assertInspect: function(expected, actual) {
    var message = arguments[2] || "assertInspect";
    try { (expected == actual.inspect()) ? this.pass() :
      this.fail(message + ': expected "' + Test.Unit.inspect(expected) + 
        '", actual "' + Test.Unit.inspect(actual) + '"'); }
    catch(e) { this.error(e); }
  },
  assertEnumEqual: function(expected, actual) {
    var message = arguments[2] || "assertEnumEqual";
    try { $A(expected).length == $A(actual).length && 
      expected.zip(actual).all(function(pair) { return pair[0] == pair[1] }) ?
        this.pass() : this.fail(message + ': expected ' + Test.Unit.inspect(expected) + 
          ', actual ' + Test.Unit.inspect(actual)); }
    catch(e) { this.error(e); }
  },
  assertNotEqual: function(expected, actual) {
    var message = arguments[2] || "assertNotEqual";
    try { (expected != actual) ? this.pass() : 
      this.fail(message + ': got "' + Test.Unit.inspect(actual) + '"'); }
    catch(e) { this.error(e); }
  },
  assertIdentical: function(expected, actual) { 
    var message = arguments[2] || "assertIdentical"; 
    try { (expected === actual) ? this.pass() : 
      this.fail(message + ': expected "' + Test.Unit.inspect(expected) +  
        '", actual "' + Test.Unit.inspect(actual) + '"'); } 
    catch(e) { this.error(e); } 
  },
  assertNotIdentical: function(expected, actual) { 
    var message = arguments[2] || "assertNotIdentical"; 
    try { !(expected === actual) ? this.pass() : 
      this.fail(message + ': expected "' + Test.Unit.inspect(expected) +  
        '", actual "' + Test.Unit.inspect(actual) + '"'); } 
    catch(e) { this.error(e); } 
  },
  assertNull: function(obj) {
    var message = arguments[1] || 'assertNull'
    try { (obj==null) ? this.pass() : 
      this.fail(message + ': got "' + Test.Unit.inspect(obj) + '"'); }
    catch(e) { this.error(e); }
  },
  assertMatch: function(expected, actual) {
    var message = arguments[2] || 'assertMatch';
    var regex = new RegExp(expected);
    try { (regex.exec(actual)) ? this.pass() :
      this.fail(message + ' : regex: "' +  Test.Unit.inspect(expected) + ' did not match: ' + Test.Unit.inspect(actual) + '"'); }
    catch(e) { this.error(e); }
  },
  assertHidden: function(element) {
    var message = arguments[1] || 'assertHidden';
    this.assertEqual("none", element.style.display, message);
  },
  assertNotNull: function(object) {
    var message = arguments[1] || 'assertNotNull';
    this.assert(object != null, message);
  },
  assertType: function(expected, actual) {
    var message = arguments[2] || 'assertType';
    try { 
      (actual.constructor == expected) ? this.pass() : 
      this.fail(message + ': expected "' + Test.Unit.inspect(expected) +  
        '", actual "' + (actual.constructor) + '"'); }
    catch(e) { this.error(e); }
  },
  assertNotOfType: function(expected, actual) {
    var message = arguments[2] || 'assertNotOfType';
    try { 
      (actual.constructor != expected) ? this.pass() : 
      this.fail(message + ': expected "' + Test.Unit.inspect(expected) +  
        '", actual "' + (actual.constructor) + '"'); }
    catch(e) { this.error(e); }
  },
  assertInstanceOf: function(expected, actual) {
    var message = arguments[2] || 'assertInstanceOf';
    try { 
      (actual instanceof expected) ? this.pass() : 
      this.fail(message + ": object was not an instance of the expected type"); }
    catch(e) { this.error(e); } 
  },
  assertNotInstanceOf: function(expected, actual) {
    var message = arguments[2] || 'assertNotInstanceOf';
    try { 
      !(actual instanceof expected) ? this.pass() : 
      this.fail(message + ": object was an instance of the not expected type"); }
    catch(e) { this.error(e); } 
  },
  assertRespondsTo: function(method, obj) {
    var message = arguments[2] || 'assertRespondsTo';
    try {
      (obj[method] && typeof obj[method] == 'function') ? this.pass() : 
      this.fail(message + ": object doesn't respond to [" + method + "]"); }
    catch(e) { this.error(e); }
  },
  assertReturnsTrue: function(method, obj) {
    var message = arguments[2] || 'assertReturnsTrue';
    try {
      var m = obj[method];
      if(!m) m = obj['is'+method.charAt(0).toUpperCase()+method.slice(1)];
      m() ? this.pass() : 
      this.fail(message + ": method returned false"); }
    catch(e) { this.error(e); }
  },
  assertReturnsFalse: function(method, obj) {
    var message = arguments[2] || 'assertReturnsFalse';
    try {
      var m = obj[method];
      if(!m) m = obj['is'+method.charAt(0).toUpperCase()+method.slice(1)];
      !m() ? this.pass() : 
      this.fail(message + ": method returned true"); }
    catch(e) { this.error(e); }
  },
  assertRaise: function(exceptionName, method) {
    var message = arguments[2] || 'assertRaise';
    try { 
      method();
      this.fail(message + ": exception expected but none was raised"); }
    catch(e) {
      ((exceptionName == null) || (e.name==exceptionName)) ? this.pass() : this.error(e); 
    }
  },
  assertElementsMatch: function() {
    var expressions = $A(arguments), elements = $A(expressions.shift());
    if (elements.length != expressions.length) {
      this.fail('assertElementsMatch: size mismatch: ' + elements.length + ' elements, ' + expressions.length + ' expressions');
      return false;
    }
    elements.zip(expressions).all(function(pair, index) {
      var element = $(pair.first()), expression = pair.last();
      if (element.match(expression)) return true;
      this.fail('assertElementsMatch: (in index ' + index + ') expected ' + expression.inspect() + ' but got ' + element.inspect());
    }.bind(this)) && this.pass();
  },
  assertElementMatches: function(element, expression) {
    this.assertElementsMatch([element], expression);
  },
  benchmark: function(operation, iterations) {
    var startAt = new Date();
    (iterations || 1).times(operation);
    var timeTaken = ((new Date())-startAt);
    this.info((arguments[2] || 'Operation') + ' finished ' + 
       iterations + ' iterations in ' + (timeTaken/1000)+'s' );
    return timeTaken;
  },
  _isVisible: function(element) {
    element = $(element);
    if(!element.parentNode) return true;
    this.assertNotNull(element);
    if(element.style && Element.getStyle(element, 'display') == 'none')
      return false;
    
    return this._isVisible(element.parentNode);
  },
  assertNotVisible: function(element) {
    this.assert(!this._isVisible(element), Test.Unit.inspect(element) + " was not hidden and didn't have a hidden parent either. " + ("" || arguments[1]));
  },
  assertVisible: function(element) {
    this.assert(this._isVisible(element), Test.Unit.inspect(element) + " was not visible. " + ("" || arguments[1]));
  },
  benchmark: function(operation, iterations) {
    var startAt = new Date();
    (iterations || 1).times(operation);
    var timeTaken = ((new Date())-startAt);
    this.info((arguments[2] || 'Operation') + ' finished ' + 
       iterations + ' iterations in ' + (timeTaken/1000)+'s' );
    return timeTaken;
  }
}

Test.Unit.Testcase = Class.create();
Object.extend(Object.extend(Test.Unit.Testcase.prototype, Test.Unit.Assertions.prototype), {
  initialize: function(name, test, setup, teardown) {
    Test.Unit.Assertions.prototype.initialize.bind(this)();
    this.name           = name;
    
    if(typeof test == 'string') {
      test = test.gsub(/(\.should[^\(]+\()/,'#{0}this,');
      test = test.gsub(/(\.should[^\(]+)\(this,\)/,'#{1}(this)');
      this.test = function() {
        eval('with(this){'+test+'}');
      }
    } else {
      this.test = test || function() {};
    }
    
    this.setup          = setup || function() {};
    this.teardown       = teardown || function() {};
    this.isWaiting      = false;
    this.timeToWait     = 1000;
  },
  wait: function(time, nextPart) {
    this.isWaiting = true;
    this.test = nextPart;
    this.timeToWait = time;
  },
  run: function() {
    try {
      try {
        if (!this.isWaiting) this.setup.bind(this)();
        this.isWaiting = false;
        this.test.bind(this)();
      } finally {
        if(!this.isWaiting) {
          this.teardown.bind(this)();
        }
      }
    }
    catch(e) { this.error(e); }
  }
});

// *EXPERIMENTAL* BDD-style testing to please non-technical folk
// This draws many ideas from RSpec http://rspec.rubyforge.org/

Test.setupBDDExtensionMethods = function(){
  var METHODMAP = {
    shouldEqual:     'assertEqual',
    shouldNotEqual:  'assertNotEqual',
    shouldEqualEnum: 'assertEnumEqual',
    shouldBeA:       'assertType',
    shouldNotBeA:    'assertNotOfType',
    shouldBeAn:      'assertType',
    shouldNotBeAn:   'assertNotOfType',
    shouldBeNull:    'assertNull',
    shouldNotBeNull: 'assertNotNull',
    
    shouldBe:        'assertReturnsTrue',
    shouldNotBe:     'assertReturnsFalse',
    shouldRespondTo: 'assertRespondsTo'
  };
  var makeAssertion = function(assertion, args, object) { 
   	this[assertion].apply(this,(args || []).concat([object]));
  }
  
  Test.BDDMethods = {};   
  $H(METHODMAP).each(function(pair) { 
    Test.BDDMethods[pair.key] = function() { 
       var args = $A(arguments); 
       var scope = args.shift(); 
       makeAssertion.apply(scope, [pair.value, args, this]); }; 
  });
  
  [Array.prototype, String.prototype, Number.prototype, Boolean.prototype].each(
    function(p){ Object.extend(p, Test.BDDMethods) }
  );
}

Test.context = function(name, spec, log){
  Test.setupBDDExtensionMethods();
  
  var compiledSpec = {};
  var titles = {};
  for(specName in spec) {
    switch(specName){
      case "setup":
      case "teardown":
        compiledSpec[specName] = spec[specName];
        break;
      default:
        var testName = 'test'+specName.gsub(/\s+/,'-').camelize();
        var body = spec[specName].toString().split('\n').slice(1);
        if(/^\{/.test(body[0])) body = body.slice(1);
        body.pop();
        body = body.map(function(statement){ 
          return statement.strip()
        });
        compiledSpec[testName] = body.join('\n');
        titles[testName] = specName;
    }
  }
  new Test.Unit.Runner(compiledSpec, { titles: titles, testLog: log || 'testlog', context: name });
};	var temps_effet = 0.3;
	var statut_barre = 'off';
	
	
	function startLyteFrame(title, url, hauteur, largeur){
		if(!largeur){
			hauteur = '480';
			largeur = '640';
		}
		var anchor = this.document.createElement('a');
		//anchor.setAttribute('rev', 'width: ' + largeur + 'px; height: ' + hauteur + 'px; scrolling: auto;');
		anchor.setAttribute('title', title);
		anchor.setAttribute('href', url);
		anchor.setAttribute('rel', 'lyteframe');
		//alert(anchor.getAttrbute('title'));
		myLytebox.start(anchor, false, true);
		return false;
	}
	function startLyteBox(title, url){
		var anchor = this.document.createElement('a');
		anchor.setAttribute('title', title);
		anchor.setAttribute('href', url);
		anchor.setAttribute('rel', 'lytebox');
		//alert(anchor.getAttrbute('title'));
		myLytebox.start(anchor, false, false);
		return false;
	}
	function stopLyteBox(){
		window.top.myLytebox.end();
		myLytebox.end();
	}
	function obtenir_image_apercu(){
		return image_apercu;
	}
	function logguer(texte, categorie){
		var classe = "log";
		if(categorie){
			switch(categorie){
				case "1": classe = 'erreur_fatale';
				break;
				case "2": classe = 'alerte';
				break;
				case "3": classe = 'log';
				break;
				case "4": classe = 'log';
				break;
			}
		}
		var nouveau = '<div class="' + classe + '">' + texte + '</div>';
		new Insertion.After($('element_base'), nouveau);
		if(categorie == '1' || categorie == '2'){
			afficher_barre();
		}
	}
	function vider_spaw(nom){
		var editor_obj = eval(nom + "_obj");
   		var ta = editor_obj.getPageInput(nom);
   		ta.value = '';
   		editor_obj.updatePageDoc(ta);
	}
	function obtenir_contenu_spaw(nom){
		var editor_obj = eval(nom + "_obj");
		var page = editor_obj.getActivePage();
   		var a_renvoyer = editor_obj.getPageHtml(page);
   		return a_renvoyer;
	}
	function recharger(){
		top.document.location.href = top.document.location.href;
	}
	function deconnexion(){
		new Ajax.Request('_ajax/deconnexion.php', { onComplete:function(t){ document.location.href='/'; } });
	}
	function cacher_objet(type, id, div, id_utilisateur){
		var url = '_ajax/cacher_objet.php?type=' + type + '&id=' + id;
		if(id_utilisateur){
			url += '_ajax/cacher_objet.php?type=' + type + '&id=' + id + '&id_utilisateur=' + id_utilisateur;
		}
		new Ajax.Request(url, { onComplete:function(t){ if($(div)){ masquer($(div)); } }  });
	}
	function supprimer_objet(id, classe){
		new Ajax.Request('_ajax/supprimer_objet.php?classe=' + classe + '&id=' + id);
		window.top.myLytebox.end();
		supprimer($(classe + '_' + id));
		return false;
	}
	function modifier_objet(id, classe, nom_propriete, valeur){
		new Ajax.Request('_ajax/modifier_objet.php?classe=' + classe + '&id=' + id + '&nom_propriete=' + nom_propriete + '&valeur=' + valeur, { onComplete:function(t){ document.location.href = document.location.href; } });
		return false;
	}
	function popUp(URL, image_width, image_height, scrollbars){
		day = new Date();
		id = day.getTime();
		scrollbars = 'scrollbars=NO';
		if(scrollbars){
			scrollbars = 'scrollbars=YES';
		}
		params = 'toolbar=0,' + scrollbars + ',location=0,menubar=0,status=0,resizable=1,width=' + image_width + ',height=' + image_height;
		eval("page" + id + " = window.open(URL, '" + id + "', params);");
	}
	function traiter_chaine(chaine){
		chaine = chaine.replace(/€/g, '&euro;');
		chaine = nl2br(chaine);
		chaine = encodeURIComponent(chaine);
		return chaine;
	}
	function nl2br(chaine){
		var chaine_a_renvoyer = chaine.replace(/([^>])\n/g, '$1<br />\n');
		
		alert(chaine_a_renvoyer);
		return chaine_a_renvoyer;
	}
	function afficher_barre(){
		if(statut_barre == 'off'){
	        new Effect.SlideDown($('console'), { duration: 0.3 });
		}
		statut_barre = 'on';
    }
    function masquer_barre(){
		if(statut_barre == 'on'){
       	 new Effect.SlideUp($('console'), { duration: 0.3 });
		}
		statut_barre = 'off';
    }
	function afficher(objet, options){
		var options = options || {};
		var duree = options.duree ||  temps_effet;
		var limite = options.limite || null;
		if(!limite){
			limite = 0;
			new Effect.BlindDown(objet, { duration: duree });
		}
		new Effect.Appear(objet, { duration: duree, from:limite });
	}
	function masquer(objet, options){
		var options = options || {};
		var duree = options.duree || temps_effet;
		var limite = options.limite || null;
		if(!limite){
			limite = 0;
			new Effect.BlindUp(objet, { duration: duree });
		}
		new Effect.Fade(objet, { duration:duree, to:limite });
	}
	function supprimer(objet){
		if(objet){
			new Effect.Fade(objet, { afterFinish:function(o){ $(objet).remove(); } });
		}
	}
	function alterner(objet){
		if(objet){
			new Effect.toggle(objet, 'Blind');
		}
	}
	
	function enregistrer_association_objets(objet, classe, nom_propriete, classe_parent, id){
		id_objet = objet.id;
		id_objet = id_objet.replace(classe + "_", "");
		
		var tab_enfants = $A(objet.childNodes);
		var i = 0;
		var a_renvoyer = '';
		tab_enfants.each(function(node){
			if(i == 0){
				a_renvoyer = a_renvoyer + '?';
			} else {
				a_renvoyer = a_renvoyer + '&';
			}
			var id_node = node.id;
			id_node = id_node.replace(classe + "_", "");
			a_renvoyer = a_renvoyer + 'element' + i + '=' + id_node;
			i++;
		});
		if(a_renvoyer == ''){
			a_renvoyer = '?element='+ id_objet +'&valeur=0';
		}
		a_renvoyer += '&classe=' + classe_parent + '&nom_propriete=' + nom_propriete + '&sous_classe=' + classe + '&id=' + id;
		
		var url = '_ajax/modifier_association_objet.php' + a_renvoyer;
		
		new Ajax.Request(url);
	}
	function SuccesUpload(file, serverData) {
		//recharger();
	}
	function supprimer_objet(id, classe){
		new Ajax.Request('_ajax/supprimer_objet.php?classe=' + classe + '&id=' + id);
		window.top.myLytebox.end();
		supprimer($(classe + '_' + id));
		return false;
	}
	function rendre_sortable(objet, classe, nom_propriete, classe_parent, id){
		if($(objet)){
			Sortable.create(objet, {revert:true, containment:[objet], onUpdate:function(obj){enregistrer_association_objets(obj, classe, nom_propriete, classe_parent, id); }, constraint:null, handle:'handle' });
		}
	}
	
	
	
	
	
	
function getElementsByClassName(strClass, strTag, objContElm) {
	strTag      = strTag || "*";
	objContElm  = objContElm || document;
	var objColl = objContElm.getElementsByTagName(strTag);

	if (!objColl.length && strTag == "*" && objContElm.all) {
		objColl = objContElm.all;
	}

	var arr   = new Array();
	var delim = strClass.indexOf('|') != -1  ? '|' : ' ';
	var arrClass = strClass.split(delim);

	for (var i = 0, j = objColl.length; i < j; i++) {
		var arrObjClass = objColl[i].className.split(' ');

		if (delim == ' ' && arrClass.length > arrObjClass.length) continue;
		var c = 0;
		comparisonLoop:
		for (var k = 0, l = arrObjClass.length; k < l; k++) {
			for (var m = 0, n = arrClass.length; m < n; m++) {
				if (arrClass[m] == arrObjClass[k])
					c++;
				if (( delim == '|' && c == 1) || (delim == ' ' && c == arrClass.length)) {
					arr.push(objColl[i]);
					break comparisonLoop;
				}
			}
		}
	}

	return arr;
}//***********************************************************************************************************************************/
//	LyteBox v3.22
//
//	 Author: Markus F. Hay
//  Website: http://www.dolem.com/lytebox
//	   Date: October 2, 2007
//	License: Creative Commons Attribution 3.0 License (http://creativecommons.org/licenses/by/3.0/)
// Browsers: Tested successfully on WinXP with the following browsers (using no DOCTYPE and Strict/Transitional/Loose DOCTYPES):
//				* Firefox: 2.0.0.7, 1.5.0.12
//				* Internet Explorer: 7.0, 6.0 SP2, 5.5 SP2
//				* Opera: 9.23
//
// Releases: For up-to-date and complete release information, visit http://www.dolem.com/forum/showthread.php?tid=62
//				* v3.22 (10/02/07)
//				* v3.21 (09/30/07)
//				* v3.20 (07/12/07)
//				* v3.10 (05/28/07)
//				* v3.00 (05/15/07)
//				* v2.02 (11/13/06)
//
//   Credit: LyteBox was originally derived from the Lightbox class (v2.02) that was written by Lokesh Dhakar. For more
//			 information please visit http://huddletogether.com/projects/lightbox2/
//***********************************************************************************************************************************/
Array.prototype.removeDuplicates = function () { for (var i = 1; i < this.length; i++) { if (this[i][0] == this[i-1][0]) { this.splice(i,1); } } }
Array.prototype.empty = function () { for (var i = 0; i <= this.length; i++) { this.shift(); } }
String.prototype.trim = function () { return this.replace(/^\s+|\s+$/g, ''); }

function LyteBox() {
	/*** Start Global Configuration ***/
		this.theme				= 'grey';	// themes: grey (default), red, green, blue, gold
		this.hideFlash			= false;	// controls whether or not Flash objects should be hidden
		this.outerBorder		= false;	// controls whether to show the outer grey (or theme) border
		this.resizeSpeed		= 8;		// controls the speed of the image resizing (1=slowest and 10=fastest)
		this.maxOpacity			= 80;		// higher opacity = darker overlay, lower opacity = lighter overlay
		this.navType			= 1;		// 1 = "Prev/Next" buttons on top left and left (default), 2 = "<< prev | next >>" links next to image number
		this.autoResize			= true;		// controls whether or not images should be resized if larger than the browser window dimensions
		this.doAnimations		= true;	// controls whether or not "animate" Lytebox, i.e. resize transition between images, fade in/out effects, etc.
		
		this.borderSize			= 12;		// if you adjust the padding in the CSS, you will need to update this variable -- otherwise, leave this alone...
	/*** End Global Configuration ***/
	
	/*** Configure Slideshow Options ***/
		this.slideInterval		= 4000;		// Change value (milliseconds) to increase/decrease the time between "slides" (10000 = 10 seconds)
		this.showNavigation		= true;		// true to display Next/Prev buttons/text during slideshow, false to hide
		this.showClose			= true;		// true to display the Close button, false to hide
		this.showDetails		= true;		// true to display image details (caption, count), false to hide
		this.showPlayPause		= false;	// true to display pause/play buttons next to close button, false to hide
		this.autoEnd			= true;		// true to automatically close Lytebox after the last image is reached, false to keep open
		this.pauseOnNextClick	= false;	// true to pause the slideshow when the "Next" button is clicked
        this.pauseOnPrevClick 	= true;		// true to pause the slideshow when the "Prev" button is clicked
	/*** End Slideshow Configuration ***/
	
	if(this.resizeSpeed > 10) { this.resizeSpeed = 10; }
	if(this.resizeSpeed < 1) { resizeSpeed = 1; }
	this.resizeDuration = (11 - this.resizeSpeed) * 0.15;
	this.resizeWTimerArray		= new Array();
	this.resizeWTimerCount		= 0;
	this.resizeHTimerArray		= new Array();
	this.resizeHTimerCount		= 0;
	this.showContentTimerArray	= new Array();
	this.showContentTimerCount	= 0;
	this.overlayTimerArray		= new Array();
	this.overlayTimerCount		= 0;
	this.imageTimerArray		= new Array();
	this.imageTimerCount		= 0;
	this.timerIDArray			= new Array();
	this.timerIDCount			= 0;
	this.slideshowIDArray		= new Array();
	this.slideshowIDCount		= 0;
	this.imageArray	 = new Array();
	this.activeImage = null;
	this.slideArray	 = new Array();
	this.activeSlide = null;
	this.frameArray	 = new Array();
	this.activeFrame = null;
	this.checkFrame();
	this.isSlideshow = false;
	this.isLyteframe = false;
	/*@cc_on
		/*@if (@_jscript)
			this.ie = (document.all && !window.opera) ? true : false;
		/*@else @*/
			this.ie = false;
		/*@end
	@*/
	this.ie7 = (this.ie && window.XMLHttpRequest);	
	this.initialize();
}
LyteBox.prototype.initialize = function() {
	this.updateLyteboxItems();
	var objBody = this.doc.getElementsByTagName("body").item(0);	
	if (this.doc.getElementById('lbOverlay')) {
		objBody.removeChild(this.doc.getElementById("lbOverlay"));
		objBody.removeChild(this.doc.getElementById("lbMain"));
	}
	var objOverlay = this.doc.createElement("div");
		objOverlay.setAttribute('id','lbOverlay');
		objOverlay.setAttribute((this.ie ? 'className' : 'class'), this.theme);
		if ((this.ie && !this.ie7) || (this.ie7 && this.doc.compatMode == 'BackCompat')) {
			objOverlay.style.position = 'absolute';
		}
		objOverlay.style.display = 'none';
		objBody.appendChild(objOverlay);
	var objLytebox = this.doc.createElement("div");
		objLytebox.setAttribute('id','lbMain');
		objLytebox.style.display = 'none';
		objBody.appendChild(objLytebox);
	var objOuterContainer = this.doc.createElement("div");
		objOuterContainer.setAttribute('id','lbOuterContainer');
		objOuterContainer.setAttribute((this.ie ? 'className' : 'class'), this.theme);
		objLytebox.appendChild(objOuterContainer);
	var objIframeContainer = this.doc.createElement("div");
		objIframeContainer.setAttribute('id','lbIframeContainer');
		objIframeContainer.style.display = 'none';
		objOuterContainer.appendChild(objIframeContainer);
	var objIframe = this.doc.createElement("iframe");
		objIframe.setAttribute('id','lbIframe');
		objIframe.setAttribute('name','lbIframe');
		objIframe.style.display = 'none';
		objIframeContainer.appendChild(objIframe);
	var objImageContainer = this.doc.createElement("div");
		objImageContainer.setAttribute('id','lbImageContainer');
		objOuterContainer.appendChild(objImageContainer);
	var objLyteboxImage = this.doc.createElement("img");
		objLyteboxImage.setAttribute('id','lbImage');
		objImageContainer.appendChild(objLyteboxImage);
	var objLoading = this.doc.createElement("div");
		objLoading.setAttribute('id','lbLoading');
		objOuterContainer.appendChild(objLoading);
	var objDetailsContainer = this.doc.createElement("div");
		objDetailsContainer.setAttribute('id','lbDetailsContainer');
		objDetailsContainer.setAttribute((this.ie ? 'className' : 'class'), this.theme);
		objLytebox.appendChild(objDetailsContainer);
	var objDetailsData =this.doc.createElement("div");
		objDetailsData.setAttribute('id','lbDetailsData');
		objDetailsData.setAttribute((this.ie ? 'className' : 'class'), this.theme);
		objDetailsContainer.appendChild(objDetailsData);
	var objDetails = this.doc.createElement("div");
		objDetails.setAttribute('id','lbDetails');
		objDetailsData.appendChild(objDetails);
	var objCaption = this.doc.createElement("span");
		objCaption.setAttribute('id','lbCaption');
		objDetails.appendChild(objCaption);
	var objHoverNav = this.doc.createElement("div");
		objHoverNav.setAttribute('id','lbHoverNav');
		objImageContainer.appendChild(objHoverNav);
	var objBottomNav = this.doc.createElement("div");
		objBottomNav.setAttribute('id','lbBottomNav');
		objDetailsData.appendChild(objBottomNav);
	var objPrev = this.doc.createElement("a");
		objPrev.setAttribute('id','lbPrev');
		objPrev.setAttribute((this.ie ? 'className' : 'class'), this.theme);
		objPrev.setAttribute('href','#');
		objHoverNav.appendChild(objPrev);
	var objNext = this.doc.createElement("a");
		objNext.setAttribute('id','lbNext');
		objNext.setAttribute((this.ie ? 'className' : 'class'), this.theme);
		objNext.setAttribute('href','#');
		objHoverNav.appendChild(objNext);
	var objNumberDisplay = this.doc.createElement("span");
		objNumberDisplay.setAttribute('id','lbNumberDisplay');
		objDetails.appendChild(objNumberDisplay);
	var objNavDisplay = this.doc.createElement("span");
		objNavDisplay.setAttribute('id','lbNavDisplay');
		objNavDisplay.style.display = 'none';
		objDetails.appendChild(objNavDisplay);
	var objClose = this.doc.createElement("a");
		objClose.setAttribute('id','lbClose');
		objClose.setAttribute((this.ie ? 'className' : 'class'), this.theme);
		objClose.setAttribute('href','#');
		objBottomNav.appendChild(objClose);
	var objPause = this.doc.createElement("a");
		objPause.setAttribute('id','lbPause');
		objPause.setAttribute((this.ie ? 'className' : 'class'), this.theme);
		objPause.setAttribute('href','#');
		objPause.style.display = 'none';
		objBottomNav.appendChild(objPause);
	var objPlay = this.doc.createElement("a");
		objPlay.setAttribute('id','lbPlay');
		objPlay.setAttribute((this.ie ? 'className' : 'class'), this.theme);
		objPlay.setAttribute('href','#');
		objPlay.style.display = 'none';
		objBottomNav.appendChild(objPlay);
};
LyteBox.prototype.updateLyteboxItems = function() {	
	var anchors = (this.isFrame) ? window.parent.frames[window.name].document.getElementsByTagName('a') : document.getElementsByTagName('a');
	for (var i = 0; i < anchors.length; i++) {
		var anchor = anchors[i];
		var relAttribute = String(anchor.getAttribute('rel'));
		if (anchor.getAttribute('href')) {
			if (relAttribute.toLowerCase().match('lytebox')) {
				anchor.onclick = function () { myLytebox.start(this, false, false); return false; }
			} else if (relAttribute.toLowerCase().match('lyteshow')) {
				anchor.onclick = function () { myLytebox.start(this, true, false); return false; }
			} else if (relAttribute.toLowerCase().match('lyteframe')) {
				anchor.onclick = function () { myLytebox.start(this, false, true); return false; }
			}
		}
	}
};
LyteBox.prototype.start = function(imageLink, doSlide, doFrame) {
	if (this.ie && !this.ie7) {	this.toggleSelects('hide');	}
	if (this.hideFlash) { this.toggleFlash('hide'); }
	this.isLyteframe = (doFrame ? true : false);
	var pageSize	= this.getPageSize();
	var objOverlay	= this.doc.getElementById('lbOverlay');
	var objBody		= this.doc.getElementsByTagName("body").item(0);
	objOverlay.style.height = pageSize[1] + "px";
	objOverlay.style.display = '';
	this.appear('lbOverlay', (this.doAnimations ? 0 : this.maxOpacity));
	var anchors = (this.isFrame) ? window.parent.frames[window.name].document.getElementsByTagName('a') : document.getElementsByTagName('a');
	if (this.isLyteframe) {
		this.frameArray = [];
		this.frameNum = 0;
		if ((imageLink.getAttribute('rel') == 'lyteframe')) {
			var rev = imageLink.getAttribute('rev');
			this.frameArray.push(new Array(imageLink.getAttribute('href'), imageLink.getAttribute('title'), (rev == null || rev == '' ? 'width: 400px; height: 400px; scrolling: auto;' : rev)));
		} else {
			if (imageLink.getAttribute('rel').indexOf('lyteframe') != -1) {
				for (var i = 0; i < anchors.length; i++) {
					var anchor = anchors[i];
					if (anchor.getAttribute('href') && (anchor.getAttribute('rel') == imageLink.getAttribute('rel'))) {
						var rev = anchor.getAttribute('rev');
						this.frameArray.push(new Array(anchor.getAttribute('href'), anchor.getAttribute('title'), (rev == null || rev == '' ? 'width: 400px; height: 400px; scrolling: auto;' : rev)));
					}
				}
				this.frameArray.removeDuplicates();
				while(this.frameArray[this.frameNum][0] != imageLink.getAttribute('href')) { this.frameNum++; }
			}
		}
	} else {
		this.imageArray = [];
		this.imageNum = 0;
		this.slideArray = [];
		this.slideNum = 0;
		if ((imageLink.getAttribute('rel') == 'lytebox')) {
			this.imageArray.push(new Array(imageLink.getAttribute('href'), imageLink.getAttribute('title')));
		} else {
			if (imageLink.getAttribute('rel').indexOf('lytebox') != -1) {
				for (var i = 0; i < anchors.length; i++) {
					var anchor = anchors[i];
					if (anchor.getAttribute('href') && (anchor.getAttribute('rel') == imageLink.getAttribute('rel'))) {
						this.imageArray.push(new Array(anchor.getAttribute('href'), anchor.getAttribute('title')));
					}
				}
				this.imageArray.removeDuplicates();
				while(this.imageArray[this.imageNum][0] != imageLink.getAttribute('href')) { this.imageNum++; }
			}
			if (imageLink.getAttribute('rel').indexOf('lyteshow') != -1) {
				for (var i = 0; i < anchors.length; i++) {
					var anchor = anchors[i];
					if (anchor.getAttribute('href') && (anchor.getAttribute('rel') == imageLink.getAttribute('rel'))) {
						this.slideArray.push(new Array(anchor.getAttribute('href'), anchor.getAttribute('title')));
					}
				}
				this.slideArray.removeDuplicates();
				while(this.slideArray[this.slideNum][0] != imageLink.getAttribute('href')) { this.slideNum++; }
			}
		}
	}
	var object = this.doc.getElementById('lbMain');
		object.style.top = (this.getPageScroll() + (pageSize[3] / 15)) + "px";
		object.style.display = '';
	if (!this.outerBorder) {
		this.doc.getElementById('lbOuterContainer').style.border = 'none';
		this.doc.getElementById('lbDetailsContainer').style.border = 'none';
	} else {
		this.doc.getElementById('lbOuterContainer').style.borderBottom = '';
		this.doc.getElementById('lbOuterContainer').setAttribute((this.ie ? 'className' : 'class'), this.theme);
	}
	this.doc.getElementById('lbOverlay').onclick = function() { myLytebox.end(); return false; }
	this.doc.getElementById('lbMain').onclick = function(e) {
		var e = e;
		if (!e) {
			if (window.parent.frames[window.name] && (parent.document.getElementsByTagName('frameset').length <= 0)) {
				e = window.parent.window.event;
			} else {
				e = window.event;
			}
		}
		var id = (e.target ? e.target.id : e.srcElement.id);
		if (id == 'lbMain') { myLytebox.end(); return false; }
	}
	this.doc.getElementById('lbClose').onclick = function() { myLytebox.end(); return false; }
	this.doc.getElementById('lbPause').onclick = function() { myLytebox.togglePlayPause("lbPause", "lbPlay"); return false; }
	this.doc.getElementById('lbPlay').onclick = function() { myLytebox.togglePlayPause("lbPlay", "lbPause"); return false; }	
	this.isSlideshow = doSlide;
	this.isPaused = (this.slideNum != 0 ? true : false);
	if (this.isSlideshow && this.showPlayPause && this.isPaused) {
		this.doc.getElementById('lbPlay').style.display = '';
		this.doc.getElementById('lbPause').style.display = 'none';
	}
	if (this.isLyteframe) {
		this.changeContent(this.frameNum);
	} else {
		if (this.isSlideshow) {
			this.changeContent(this.slideNum);
		} else {
			this.changeContent(this.imageNum);
		}
	}
};
LyteBox.prototype.changeContent = function(imageNum) {
	if (this.isSlideshow) {
		for (var i = 0; i < this.slideshowIDCount; i++) { window.clearTimeout(this.slideshowIDArray[i]); }
	}
	this.activeImage = this.activeSlide = this.activeFrame = imageNum;
	if (!this.outerBorder) {
		this.doc.getElementById('lbOuterContainer').style.border = 'none';
		this.doc.getElementById('lbDetailsContainer').style.border = 'none';
	} else {
		this.doc.getElementById('lbOuterContainer').style.borderBottom = '';
		this.doc.getElementById('lbOuterContainer').setAttribute((this.ie ? 'className' : 'class'), this.theme);
	}
	this.doc.getElementById('lbLoading').style.display = '';
	this.doc.getElementById('lbImage').style.display = 'none';
	this.doc.getElementById('lbIframe').style.display = 'none';
	this.doc.getElementById('lbPrev').style.display = 'none';
	this.doc.getElementById('lbNext').style.display = 'none';
	this.doc.getElementById('lbIframeContainer').style.display = 'none';
	this.doc.getElementById('lbDetailsContainer').style.display = 'none';
	this.doc.getElementById('lbNumberDisplay').style.display = 'none';
	if (this.navType == 2 || this.isLyteframe) {
		object = this.doc.getElementById('lbNavDisplay');
		object.innerHTML = '&nbsp;&nbsp;&nbsp;<span id="lbPrev2_Off" style="display: none;" class="' + this.theme + '">&laquo; prev</span><a href="#" id="lbPrev2" class="' + this.theme + '" style="display: none;">&laquo; prev</a> <b id="lbSpacer" class="' + this.theme + '">||</b> <span id="lbNext2_Off" style="display: none;" class="' + this.theme + '">next &raquo;</span><a href="#" id="lbNext2" class="' + this.theme + '" style="display: none;">next &raquo;</a>';
		object.style.display = 'none';
	}
	if (this.isLyteframe) {
		var iframe = myLytebox.doc.getElementById('lbIframe');
		var styles = this.frameArray[this.activeFrame][2];
		var aStyles = styles.split(';');
		for (var i = 0; i < aStyles.length; i++) {
			if (aStyles[i].indexOf('width:') >= 0) {
				var w = aStyles[i].replace('width:', '');
				iframe.width = w.trim();
			} else if (aStyles[i].indexOf('height:') >= 0) {
				var h = aStyles[i].replace('height:', '');
				iframe.height = h.trim();
			} else if (aStyles[i].indexOf('scrolling:') >= 0) {
				var s = aStyles[i].replace('scrolling:', '');
				iframe.scrolling = s.trim();
			} else if (aStyles[i].indexOf('border:') >= 0) {
				// Not implemented yet, as there are cross-platform issues with setting the border (from a GUI standpoint)
				//var b = aStyles[i].replace('border:', '');
				//iframe.style.border = b.trim();
			}
		}
		this.resizeContainer(parseInt(iframe.width), parseInt(iframe.height));
	} else {
		imgPreloader = new Image();
		imgPreloader.onload = function() {
			var imageWidth = imgPreloader.width;
			var imageHeight = imgPreloader.height;
			if (myLytebox.autoResize) {
				var pagesize = myLytebox.getPageSize();
				var x = pagesize[2] - 150;
				var y = pagesize[3] - 150;
				if (imageWidth > x) {
					imageHeight = Math.round(imageHeight * (x / imageWidth));
					imageWidth = x; 
					if (imageHeight > y) { 
						imageWidth = Math.round(imageWidth * (y / imageHeight));
						imageHeight = y; 
					}
				} else if (imageHeight > y) { 
					imageWidth = Math.round(imageWidth * (y / imageHeight));
					imageHeight = y; 
					if (imageWidth > x) {
						imageHeight = Math.round(imageHeight * (x / imageWidth));
						imageWidth = x;
					}
				}
			}
			var lbImage = myLytebox.doc.getElementById('lbImage')
			lbImage.src = (myLytebox.isSlideshow ? myLytebox.slideArray[myLytebox.activeSlide][0] : myLytebox.imageArray[myLytebox.activeImage][0]);
			lbImage.width = imageWidth;
			lbImage.height = imageHeight;
			myLytebox.resizeContainer(imageWidth, imageHeight);
			imgPreloader.onload = function() {};
		}
		imgPreloader.src = (this.isSlideshow ? this.slideArray[this.activeSlide][0] : this.imageArray[this.activeImage][0]);
	}
};
LyteBox.prototype.resizeContainer = function(imgWidth, imgHeight) {
	this.wCur = this.doc.getElementById('lbOuterContainer').offsetWidth;
	this.hCur = this.doc.getElementById('lbOuterContainer').offsetHeight;
	this.xScale = ((imgWidth  + (this.borderSize * 2)) / this.wCur) * 100;
	this.yScale = ((imgHeight  + (this.borderSize * 2)) / this.hCur) * 100;
	var wDiff = (this.wCur - this.borderSize * 2) - imgWidth;
	var hDiff = (this.hCur - this.borderSize * 2) - imgHeight;
	if (!(hDiff == 0)) {
		this.hDone = false;
		this.resizeH('lbOuterContainer', this.hCur, imgHeight + this.borderSize*2, this.getPixelRate(this.hCur, imgHeight));
	} else {
		this.hDone = true;
	}
	if (!(wDiff == 0)) {
		this.wDone = false;
		this.resizeW('lbOuterContainer', this.wCur, imgWidth + this.borderSize*2, this.getPixelRate(this.wCur, imgWidth));
	} else {
		this.wDone = true;
	}
	if ((hDiff == 0) && (wDiff == 0)) {
		if (this.ie){ this.pause(250); } else { this.pause(100); } 
	}
	this.doc.getElementById('lbPrev').style.height = imgHeight + "px";
	this.doc.getElementById('lbNext').style.height = imgHeight + "px";
	this.doc.getElementById('lbDetailsContainer').style.width = (imgWidth + (this.borderSize * 2) + (this.ie && this.doc.compatMode == "BackCompat" && this.outerBorder ? 2 : 0)) + "px";
	this.showContent();
};
LyteBox.prototype.showContent = function() {
	if (this.wDone && this.hDone) {
		for (var i = 0; i < this.showContentTimerCount; i++) { window.clearTimeout(this.showContentTimerArray[i]); }
		if (this.outerBorder) {
			this.doc.getElementById('lbOuterContainer').style.borderBottom = 'none';
		}
		this.doc.getElementById('lbLoading').style.display = 'none';
		if (this.isLyteframe) {
			this.doc.getElementById('lbIframe').style.display = '';
			this.appear('lbIframe', (this.doAnimations ? 0 : 100));
		} else {
			this.doc.getElementById('lbImage').style.display = '';
			this.appear('lbImage', (this.doAnimations ? 0 : 100));
			this.preloadNeighborImages();
		}
		if (this.isSlideshow) {
			if(this.activeSlide == (this.slideArray.length - 1)) {
				if (this.autoEnd) {
					this.slideshowIDArray[this.slideshowIDCount++] = setTimeout("myLytebox.end('slideshow')", this.slideInterval);
				}
			} else {
				if (!this.isPaused) {
					this.slideshowIDArray[this.slideshowIDCount++] = setTimeout("myLytebox.changeContent("+(this.activeSlide+1)+")", this.slideInterval);
				}
			}
			this.doc.getElementById('lbHoverNav').style.display = (this.showNavigation && this.navType == 1 ? '' : 'none');
			this.doc.getElementById('lbClose').style.display = (this.showClose ? '' : 'none');
			this.doc.getElementById('lbDetails').style.display = (this.showDetails ? '' : 'none');
			this.doc.getElementById('lbPause').style.display = (this.showPlayPause && !this.isPaused ? '' : 'none');
			this.doc.getElementById('lbPlay').style.display = (this.showPlayPause && !this.isPaused ? 'none' : '');
			this.doc.getElementById('lbNavDisplay').style.display = (this.showNavigation && this.navType == 2 ? '' : 'none');
		} else {
			this.doc.getElementById('lbHoverNav').style.display = (this.navType == 1 && !this.isLyteframe ? '' : 'none');
			if ((this.navType == 2 && !this.isLyteframe && this.imageArray.length > 1) || (this.frameArray.length > 1 && this.isLyteframe)) {
				this.doc.getElementById('lbNavDisplay').style.display = '';
			} else {
				this.doc.getElementById('lbNavDisplay').style.display = 'none';
			}
			this.doc.getElementById('lbClose').style.display = '';
			this.doc.getElementById('lbDetails').style.display = '';
			this.doc.getElementById('lbPause').style.display = 'none';
			this.doc.getElementById('lbPlay').style.display = 'none';
		}
		this.doc.getElementById('lbImageContainer').style.display = (this.isLyteframe ? 'none' : '');
		this.doc.getElementById('lbIframeContainer').style.display = (this.isLyteframe ? '' : 'none');
		try {
			this.doc.getElementById('lbIframe').src = this.frameArray[this.activeFrame][0];
		} catch(e) { }
	} else {
		this.showContentTimerArray[this.showContentTimerCount++] = setTimeout("myLytebox.showContent()", 200);
	}
};
LyteBox.prototype.updateDetails = function() {
	var object = this.doc.getElementById('lbCaption');
	var sTitle = (this.isSlideshow ? this.slideArray[this.activeSlide][1] : (this.isLyteframe ? this.frameArray[this.activeFrame][1] : this.imageArray[this.activeImage][1]));
	object.style.display = '';
	object.innerHTML = (sTitle == null ? '' : sTitle);
	this.updateNav();
	this.doc.getElementById('lbDetailsContainer').style.display = '';
	object = this.doc.getElementById('lbNumberDisplay');
	if (this.isSlideshow && this.slideArray.length > 1) {
		object.style.display = '';
		object.innerHTML = "Image " + eval(this.activeSlide + 1) + " sur " + this.slideArray.length;
		this.doc.getElementById('lbNavDisplay').style.display = (this.navType == 2 && this.showNavigation ? '' : 'none');
	} else if (this.imageArray.length > 1 && !this.isLyteframe) {
		object.style.display = '';
		object.innerHTML = "Image " + eval(this.activeImage + 1) + " sur " + this.imageArray.length;
		this.doc.getElementById('lbNavDisplay').style.display = (this.navType == 2 ? '' : 'none');
	} else if (this.frameArray.length > 1 && this.isLyteframe) {
		object.style.display = '';
		object.innerHTML = "Page " + eval(this.activeFrame + 1) + " sur " + this.frameArray.length;
		this.doc.getElementById('lbNavDisplay').style.display = '';
	} else {
		this.doc.getElementById('lbNavDisplay').style.display = 'none';
	}
	this.appear('lbDetailsContainer', (this.doAnimations ? 0 : 100));
};
LyteBox.prototype.updateNav = function() {
	if (this.isSlideshow) {
		if (this.activeSlide != 0) {
			var object = (this.navType == 2 ? this.doc.getElementById('lbPrev2') : this.doc.getElementById('lbPrev'));
				object.style.display = '';
				object.onclick = function() {
					if (myLytebox.pauseOnPrevClick) { myLytebox.togglePlayPause("lbPause", "lbPlay"); }
					myLytebox.changeContent(myLytebox.activeSlide - 1); return false;
				}
		} else {
			if (this.navType == 2) { this.doc.getElementById('lbPrev2_Off').style.display = ''; }
		}
		if (this.activeSlide != (this.slideArray.length - 1)) {
			var object = (this.navType == 2 ? this.doc.getElementById('lbNext2') : this.doc.getElementById('lbNext'));
				object.style.display = '';
				object.onclick = function() {
					if (myLytebox.pauseOnNextClick) { myLytebox.togglePlayPause("lbPause", "lbPlay"); }
					myLytebox.changeContent(myLytebox.activeSlide + 1); return false;
				}
		} else {
			if (this.navType == 2) { this.doc.getElementById('lbNext2_Off').style.display = ''; }
		}
	} else if (this.isLyteframe) {
		if(this.activeFrame != 0) {
			var object = this.doc.getElementById('lbPrev2');
				object.style.display = '';
				object.onclick = function() {
					myLytebox.changeContent(myLytebox.activeFrame - 1); return false;
				}
		} else {
			this.doc.getElementById('lbPrev2_Off').style.display = '';
		}
		if(this.activeFrame != (this.frameArray.length - 1)) {
			var object = this.doc.getElementById('lbNext2');
				object.style.display = '';
				object.onclick = function() {
					myLytebox.changeContent(myLytebox.activeFrame + 1); return false;
				}
		} else {
			this.doc.getElementById('lbNext2_Off').style.display = '';
		}		
	} else {
		if(this.activeImage != 0) {
			var object = (this.navType == 2 ? this.doc.getElementById('lbPrev2') : this.doc.getElementById('lbPrev'));
				object.style.display = '';
				object.onclick = function() {
					myLytebox.changeContent(myLytebox.activeImage - 1); return false;
				}
		} else {
			if (this.navType == 2) { this.doc.getElementById('lbPrev2_Off').style.display = ''; }
		}
		if(this.activeImage != (this.imageArray.length - 1)) {
			var object = (this.navType == 2 ? this.doc.getElementById('lbNext2') : this.doc.getElementById('lbNext'));
				object.style.display = '';
				object.onclick = function() {
					myLytebox.changeContent(myLytebox.activeImage + 1); return false;
				}
		} else {
			if (this.navType == 2) { this.doc.getElementById('lbNext2_Off').style.display = ''; }
		}
	}
	this.enableKeyboardNav();
};
LyteBox.prototype.enableKeyboardNav = function() { document.onkeydown = this.keyboardAction; };
LyteBox.prototype.disableKeyboardNav = function() { document.onkeydown = ''; };
LyteBox.prototype.keyboardAction = function(e) {
	var keycode = key = escape = null;
	keycode	= (e == null) ? event.keyCode : e.which;
	key		= String.fromCharCode(keycode).toLowerCase();
	escape  = (e == null) ? 27 : e.DOM_VK_ESCAPE;
	if ((key == 'x') || (key == 'c') || (keycode == escape)) {
		myLytebox.end();
	} else if ((key == 'p') || (keycode == 37)) {
		if (myLytebox.isSlideshow) {
			if(myLytebox.activeSlide != 0) {
				myLytebox.disableKeyboardNav();
				myLytebox.changeContent(myLytebox.activeSlide - 1);
			}
		} else if (myLytebox.isLyteframe) {
			if(myLytebox.activeFrame != 0) {
				myLytebox.disableKeyboardNav();
				myLytebox.changeContent(myLytebox.activeFrame - 1);
			}
		} else {
			if(myLytebox.activeImage != 0) {
				myLytebox.disableKeyboardNav();
				myLytebox.changeContent(myLytebox.activeImage - 1);
			}
		}
	} else if ((key == 'n') || (keycode == 39)) {
		if (myLytebox.isSlideshow) {
			if(myLytebox.activeSlide != (myLytebox.slideArray.length - 1)) {
				myLytebox.disableKeyboardNav();
				myLytebox.changeContent(myLytebox.activeSlide + 1);
			}
		} else if (myLytebox.isLyteframe) {
			if(myLytebox.activeFrame != (myLytebox.frameArray.length - 1)) {
				myLytebox.disableKeyboardNav();
				myLytebox.changeContent(myLytebox.activeFrame + 1);
			}
		} else {
			if(myLytebox.activeImage != (myLytebox.imageArray.length - 1)) {
				myLytebox.disableKeyboardNav();
				myLytebox.changeContent(myLytebox.activeImage + 1);
			}
		}
	}
};
LyteBox.prototype.preloadNeighborImages = function() {
	if (this.isSlideshow) {
		if ((this.slideArray.length - 1) > this.activeSlide) {
			preloadNextImage = new Image();
			preloadNextImage.src = this.slideArray[this.activeSlide + 1][0];
		}
		if(this.activeSlide > 0) {
			preloadPrevImage = new Image();
			preloadPrevImage.src = this.slideArray[this.activeSlide - 1][0];
		}
	} else {
		if ((this.imageArray.length - 1) > this.activeImage) {
			preloadNextImage = new Image();
			preloadNextImage.src = this.imageArray[this.activeImage + 1][0];
		}
		if(this.activeImage > 0) {
			preloadPrevImage = new Image();
			preloadPrevImage.src = this.imageArray[this.activeImage - 1][0];
		}
	}
};
LyteBox.prototype.togglePlayPause = function(hideID, showID) {
	if (this.isSlideshow && hideID == "lbPause") {
		for (var i = 0; i < this.slideshowIDCount; i++) { window.clearTimeout(this.slideshowIDArray[i]); }
	}
	this.doc.getElementById(hideID).style.display = 'none';
	this.doc.getElementById(showID).style.display = '';
	if (hideID == "lbPlay") {
		this.isPaused = false;
		if (this.activeSlide == (this.slideArray.length - 1)) {
			this.end();
		} else {
			this.changeContent(this.activeSlide + 1);
		}
	} else {
		this.isPaused = true;
	}
};
LyteBox.prototype.end = function(caller) {
	var closeClick = (caller == 'slideshow' ? false : true);
	if (this.isSlideshow && this.isPaused && !closeClick) { return; }
	this.disableKeyboardNav();
	this.doc.getElementById('lbMain').style.display = 'none';
	this.fade('lbOverlay', (this.doAnimations ? this.maxOpacity : 0));
	this.toggleSelects('visible');
	if (this.hideFlash) { this.toggleFlash('visible'); }
	if (this.isSlideshow) {
		for (var i = 0; i < this.slideshowIDCount; i++) { window.clearTimeout(this.slideshowIDArray[i]); }
	}
	if (this.isLyteframe) {
		 this.initialize();
	}
};
LyteBox.prototype.checkFrame = function() {
	if (window.parent.frames[window.name] && (parent.document.getElementsByTagName('frameset').length <= 0)) {
		this.isFrame = true;
		this.lytebox = "window.parent." + window.name + ".myLytebox";
		this.doc = parent.document;
	} else {
		this.isFrame = false;
		this.lytebox = "myLytebox";
		this.doc = document;
	}
};
LyteBox.prototype.getPixelRate = function(cur, img) {
	var diff = (img > cur) ? img - cur : cur - img;
	if (diff >= 0 && diff <= 100) { return 10; }
	if (diff > 100 && diff <= 200) { return 15; }
	if (diff > 200 && diff <= 300) { return 20; }
	if (diff > 300 && diff <= 400) { return 25; }
	if (diff > 400 && diff <= 500) { return 30; }
	if (diff > 500 && diff <= 600) { return 35; }
	if (diff > 600 && diff <= 700) { return 40; }
	if (diff > 700) { return 45; }
};
LyteBox.prototype.appear = function(id, opacity) {
	var object = this.doc.getElementById(id).style;
	object.opacity = (opacity / 100);
	object.MozOpacity = (opacity / 100);
	object.KhtmlOpacity = (opacity / 100);
	object.filter = "alpha(opacity=" + (opacity + 10) + ")";
	if (opacity == 100 && (id == 'lbImage' || id == 'lbIframe')) {
		try { object.removeAttribute("filter"); } catch(e) {}	/* Fix added for IE Alpha Opacity Filter bug. */
		this.updateDetails();
	} else if (opacity >= this.maxOpacity && id == 'lbOverlay') {
		for (var i = 0; i < this.overlayTimerCount; i++) { window.clearTimeout(this.overlayTimerArray[i]); }
		return;
	} else if (opacity >= 100 && id == 'lbDetailsContainer') {
		try { object.removeAttribute("filter"); } catch(e) {}	/* Fix added for IE Alpha Opacity Filter bug. */
		for (var i = 0; i < this.imageTimerCount; i++) { window.clearTimeout(this.imageTimerArray[i]); }
		this.doc.getElementById('lbOverlay').style.height = this.getPageSize()[1] + "px";
	} else {
		if (id == 'lbOverlay') {
			this.overlayTimerArray[this.overlayTimerCount++] = setTimeout("myLytebox.appear('" + id + "', " + (opacity+20) + ")", 1);
		} else {
			this.imageTimerArray[this.imageTimerCount++] = setTimeout("myLytebox.appear('" + id + "', " + (opacity+10) + ")", 1);
		}
	}
};
LyteBox.prototype.fade = function(id, opacity) {
	var object = this.doc.getElementById(id).style;
	object.opacity = (opacity / 100);
	object.MozOpacity = (opacity / 100);
	object.KhtmlOpacity = (opacity / 100);
	object.filter = "alpha(opacity=" + opacity + ")";
	if (opacity <= 0) {
		try {
			object.display = 'none';
		} catch(err) { }
	} else if (id == 'lbOverlay') {
		this.overlayTimerArray[this.overlayTimerCount++] = setTimeout("myLytebox.fade('" + id + "', " + (opacity-20) + ")", 1);
	} else {
		this.timerIDArray[this.timerIDCount++] = setTimeout("myLytebox.fade('" + id + "', " + (opacity-10) + ")", 1);
	}
};
LyteBox.prototype.resizeW = function(id, curW, maxW, pixelrate, speed) {
	if (!this.hDone) {
		this.resizeWTimerArray[this.resizeWTimerCount++] = setTimeout("myLytebox.resizeW('" + id + "', " + curW + ", " + maxW + ", " + pixelrate + ")", 100);
		return;
	}
	var object = this.doc.getElementById(id);
	var timer = speed ? speed : (this.resizeDuration/2);
	var newW = (this.doAnimations ? curW : maxW);
	object.style.width = (newW) + "px";
	if (newW < maxW) {
		newW += (newW + pixelrate >= maxW) ? (maxW - newW) : pixelrate;
	} else if (newW > maxW) {
		newW -= (newW - pixelrate <= maxW) ? (newW - maxW) : pixelrate;
	}
	this.resizeWTimerArray[this.resizeWTimerCount++] = setTimeout("myLytebox.resizeW('" + id + "', " + newW + ", " + maxW + ", " + pixelrate + ", " + (timer+0.02) + ")", timer+0.02);
	if (parseInt(object.style.width) == maxW) {
		this.wDone = true;
		for (var i = 0; i < this.resizeWTimerCount; i++) { window.clearTimeout(this.resizeWTimerArray[i]); }
	}
};
LyteBox.prototype.resizeH = function(id, curH, maxH, pixelrate, speed) {
	var timer = speed ? speed : (this.resizeDuration/2);
	var object = this.doc.getElementById(id);
	var newH = (this.doAnimations ? curH : maxH);
	object.style.height = (newH) + "px";
	if (newH < maxH) {
		newH += (newH + pixelrate >= maxH) ? (maxH - newH) : pixelrate;
	} else if (newH > maxH) {
		newH -= (newH - pixelrate <= maxH) ? (newH - maxH) : pixelrate;
	}
	this.resizeHTimerArray[this.resizeHTimerCount++] = setTimeout("myLytebox.resizeH('" + id + "', " + newH + ", " + maxH + ", " + pixelrate + ", " + (timer+.02) + ")", timer+.02);
	if (parseInt(object.style.height) == maxH) {
		this.hDone = true;
		for (var i = 0; i < this.resizeHTimerCount; i++) { window.clearTimeout(this.resizeHTimerArray[i]); }
	}
};
LyteBox.prototype.getPageScroll = function() {
	if (self.pageYOffset) {
		return this.isFrame ? parent.pageYOffset : self.pageYOffset;
	} else if (this.doc.documentElement && this.doc.documentElement.scrollTop){
		return this.doc.documentElement.scrollTop;
	} else if (document.body) {
		return this.doc.body.scrollTop;
	}
};
LyteBox.prototype.getPageSize = function() {	
	var xScroll, yScroll, windowWidth, windowHeight;
	if (window.innerHeight && window.scrollMaxY) {
		xScroll = this.doc.scrollWidth;
		yScroll = (this.isFrame ? parent.innerHeight : self.innerHeight) + (this.isFrame ? parent.scrollMaxY : self.scrollMaxY);
	} else if (this.doc.body.scrollHeight > this.doc.body.offsetHeight){
		xScroll = this.doc.body.scrollWidth;
		yScroll = this.doc.body.scrollHeight;
	} else {
		xScroll = this.doc.getElementsByTagName("html").item(0).offsetWidth;
		yScroll = this.doc.getElementsByTagName("html").item(0).offsetHeight;
		xScroll = (xScroll < this.doc.body.offsetWidth) ? this.doc.body.offsetWidth : xScroll;
		yScroll = (yScroll < this.doc.body.offsetHeight) ? this.doc.body.offsetHeight : yScroll;
	}
	if (self.innerHeight) {
		windowWidth = (this.isFrame) ? parent.innerWidth : self.innerWidth;
		windowHeight = (this.isFrame) ? parent.innerHeight : self.innerHeight;
	} else if (document.documentElement && document.documentElement.clientHeight) {
		windowWidth = this.doc.documentElement.clientWidth;
		windowHeight = this.doc.documentElement.clientHeight;
	} else if (document.body) {
		windowWidth = this.doc.getElementsByTagName("html").item(0).clientWidth;
		windowHeight = this.doc.getElementsByTagName("html").item(0).clientHeight;
		windowWidth = (windowWidth == 0) ? this.doc.body.clientWidth : windowWidth;
		windowHeight = (windowHeight == 0) ? this.doc.body.clientHeight : windowHeight;
	}
	var pageHeight = (yScroll < windowHeight) ? windowHeight : yScroll;
	var pageWidth = (xScroll < windowWidth) ? windowWidth : xScroll;
	return new Array(pageWidth, pageHeight, windowWidth, windowHeight);
};
LyteBox.prototype.toggleFlash = function(state) {
	var objects = this.doc.getElementsByTagName("object");
	for (var i = 0; i < objects.length; i++) {
		objects[i].style.visibility = (state == "hide") ? 'hidden' : 'visible';
	}
	var embeds = this.doc.getElementsByTagName("embed");
	for (var i = 0; i < embeds.length; i++) {
		embeds[i].style.visibility = (state == "hide") ? 'hidden' : 'visible';
	}
	if (this.isFrame) {
		for (var i = 0; i < parent.frames.length; i++) {
			try {
				objects = parent.frames[i].window.document.getElementsByTagName("object");
				for (var j = 0; j < objects.length; j++) {
					objects[j].style.visibility = (state == "hide") ? 'hidden' : 'visible';
				}
			} catch(e) { }
			try {
				embeds = parent.frames[i].window.document.getElementsByTagName("embed");
				for (var j = 0; j < embeds.length; j++) {
					embeds[j].style.visibility = (state == "hide") ? 'hidden' : 'visible';
				}
			} catch(e) { }
		}
	}
};
LyteBox.prototype.toggleSelects = function(state) {
	var selects = this.doc.getElementsByTagName("select");
	for (var i = 0; i < selects.length; i++ ) {
		selects[i].style.visibility = (state == "hide") ? 'hidden' : 'visible';
	}
	if (this.isFrame) {
		for (var i = 0; i < parent.frames.length; i++) {
			try {
				selects = parent.frames[i].window.document.getElementsByTagName("select");
				for (var j = 0; j < selects.length; j++) {
					selects[j].style.visibility = (state == "hide") ? 'hidden' : 'visible';
				}
			} catch(e) { }
		}
	}
};
LyteBox.prototype.pause = function(numberMillis) {
	var now = new Date();
	var exitTime = now.getTime() + numberMillis;
	while (true) {
		now = new Date();
		if (now.getTime() > exitTime) { return; }
	}
};
if (window.addEventListener) {
	window.addEventListener("load",initLytebox,false);
} else if (window.attachEvent) {
	window.attachEvent("onload",initLytebox);
} else {
	window.onload = function() {initLytebox();}
}
function initLytebox() { myLytebox = new LyteBox(); }/*
	A simple class for displaying file information and progress
	Note: This is a demonstration only and not part of SWFUpload.
	Note: Some have had problems adapting this class in IE7. It may not be suitable for your application.
*/

// Constructor
// file is a SWFUpload file object
// targetID is the HTML element id attribute that the FileProgress HTML structure will be added to.
// Instantiating a new FileProgress object with an existing file will reuse/update the existing DOM elements
function FileProgress(file, targetID) {
	this.fileProgressID = file.id;

	this.opacity = 100;
	this.height = 0;

	this.fileProgressWrapper = document.getElementById(this.fileProgressID);
	if (!this.fileProgressWrapper) {
		this.fileProgressWrapper = document.createElement("div");
		this.fileProgressWrapper.className = "progressWrapper";
		this.fileProgressWrapper.id = this.fileProgressID;

		this.fileProgressElement = document.createElement("div");
		this.fileProgressElement.className = "progressContainer";

		var progressCancel = document.createElement("a");
		progressCancel.className = "progressCancel";
		progressCancel.href = "#";
		progressCancel.style.visibility = "hidden";
		progressCancel.appendChild(document.createTextNode(" "));

		var progressText = document.createElement("div");
		progressText.className = "progressName";
		progressText.appendChild(document.createTextNode(file.name));

		var progressBar = document.createElement("div");
		progressBar.className = "progressBarInProgress";

		var progressStatus = document.createElement("div");
		progressStatus.className = "progressBarStatus";
		progressStatus.innerHTML = "&nbsp;";

		this.fileProgressElement.appendChild(progressCancel);
		this.fileProgressElement.appendChild(progressText);
		this.fileProgressElement.appendChild(progressStatus);
		this.fileProgressElement.appendChild(progressBar);

		this.fileProgressWrapper.appendChild(this.fileProgressElement);

		document.getElementById(targetID).appendChild(this.fileProgressWrapper);
	} else {
		this.fileProgressElement = this.fileProgressWrapper.firstChild;
	}

	this.height = this.fileProgressWrapper.offsetHeight;

}
FileProgress.prototype.setProgress = function (percentage) {
	this.fileProgressElement.className = "progressContainer green";
	this.fileProgressElement.childNodes[3].className = "progressBarInProgress";
	this.fileProgressElement.childNodes[3].style.width = percentage + "%";
};
FileProgress.prototype.setComplete = function () {
	this.fileProgressElement.className = "progressContainer blue";
	this.fileProgressElement.childNodes[3].className = "progressBarComplete";
	this.fileProgressElement.childNodes[3].style.width = "";

	var oSelf = this;
	setTimeout(function () {
		oSelf.disappear();
	}, 10000);
};
FileProgress.prototype.setError = function () {
	this.fileProgressElement.className = "progressContainer red";
	this.fileProgressElement.childNodes[3].className = "progressBarError";
	this.fileProgressElement.childNodes[3].style.width = "";

	var oSelf = this;
	setTimeout(function () {
		oSelf.disappear();
	}, 5000);
};
FileProgress.prototype.setCancelled = function () {
	this.fileProgressElement.className = "progressContainer";
	this.fileProgressElement.childNodes[3].className = "progressBarError";
	this.fileProgressElement.childNodes[3].style.width = "";

	var oSelf = this;
	setTimeout(function () {
		oSelf.disappear();
	}, 2000);
};
FileProgress.prototype.setStatus = function (status) {
	this.fileProgressElement.childNodes[2].innerHTML = status;
};

// Show/Hide the cancel button
FileProgress.prototype.toggleCancel = function (show, swfUploadInstance) {
	this.fileProgressElement.childNodes[0].style.visibility = show ? "visible" : "hidden";
	if (swfUploadInstance) {
		var fileID = this.fileProgressID;
		this.fileProgressElement.childNodes[0].onclick = function () {
			swfUploadInstance.cancelUpload(fileID);
			return false;
		};
	}
};

// Fades out and clips away the FileProgress box.
FileProgress.prototype.disappear = function () {

	var reduceOpacityBy = 15;
	var reduceHeightBy = 4;
	var rate = 30;	// 15 fps

	if (this.opacity > 0) {
		this.opacity -= reduceOpacityBy;
		if (this.opacity < 0) {
			this.opacity = 0;
		}

		if (this.fileProgressWrapper.filters) {
			try {
				this.fileProgressWrapper.filters.item("DXImageTransform.Microsoft.Alpha").opacity = this.opacity;
			} catch (e) {
				// If it is not set initially, the browser will throw an error.  This will set it if it is not set yet.
				this.fileProgressWrapper.style.filter = "progid:DXImageTransform.Microsoft.Alpha(opacity=" + this.opacity + ")";
			}
		} else {
			this.fileProgressWrapper.style.opacity = this.opacity / 100;
		}
	}

	if (this.height > 0) {
		this.height -= reduceHeightBy;
		if (this.height < 0) {
			this.height = 0;
		}

		this.fileProgressWrapper.style.height = this.height + "px";
	}

	if (this.height > 0 || this.opacity > 0) {
		var oSelf = this;
		setTimeout(function () {
			oSelf.disappear();
		}, rate);
	} else {
		this.fileProgressWrapper.style.display = "none";
	}
};function fileQueueError(file, errorCode, message) {
	try {
		var imageName = "error.gif";
		var errorName = "";
		if (errorCode === SWFUpload.errorCode_QUEUE_LIMIT_EXCEEDED) {
			errorName = "Vous avez sélectionné trop de fichiers.";
		}

		if (errorName !== "") {
			alert(errorName);
			return;
		}

		switch (errorCode) {
		case SWFUpload.QUEUE_ERROR.ZERO_BYTE_FILE:
			imageName = "zerobyte.gif";
			break;
		case SWFUpload.QUEUE_ERROR.FILE_EXCEEDS_SIZE_LIMIT:
			imageName = "toobig.gif";
			break;
		case SWFUpload.QUEUE_ERROR.ZERO_BYTE_FILE:
		case SWFUpload.QUEUE_ERROR.INVALID_FILETYPE:
		default:
			alert(message);
			break;
		}

		addImage("_pix/SWFUpload/" + imageName);

	} catch (ex) {
		this.debug(ex);
	}

}

function fileDialogComplete(numFilesSelected, numFilesQueued) {
	try {
		if (numFilesQueued > 0) {
			this.startUpload();
		}
	} catch (ex) {
		this.debug(ex);
	}
}

function uploadProgress(file, bytesLoaded) {

	try {
		var percent = Math.ceil((bytesLoaded / file.size) * 100);

		var progress = new FileProgress(file,  this.customSettings.upload_target);
		progress.setProgress(percent);
		if (percent === 100) {
			progress.setStatus("Traitement du fichier...");
			progress.toggleCancel(false, this);
		} else {
			progress.setStatus("Chargement...");
			progress.toggleCancel(true, this);
		}
	} catch (ex) {
		this.debug(ex);
	}
}

function uploadSuccess(file, serverData) {
	try {
		addImage("_ajax/vignette.php?id=" + serverData, serverData);

		var progress = new FileProgress(file,  this.customSettings.upload_target);

		progress.setStatus("Fichier traité.");
		progress.toggleCancel(false);


	} catch (ex) {
		this.debug(ex);
	}
}

function uploadComplete(file) {
	try {
		/*  I want the next upload to continue automatically so I'll call startUpload here */
		if (this.getStats().files_queued > 0) {
			this.startUpload();
		} else {
			var progress = new FileProgress(file,  this.customSettings.upload_target);
			progress.setComplete();
			progress.setStatus("Chargement terminé.");
			progress.toggleCancel(false);
			recharger();
		}
	} catch (ex) {
		this.debug(ex);
	}
}

function uploadError(file, errorCode, message) {
	var imageName =  "error.gif";
	var progress;
	try {
		switch (errorCode) {
		case SWFUpload.UPLOAD_ERROR.FILE_CANCELLED:
			try {
				progress = new FileProgress(file,  this.customSettings.upload_target);
				progress.setCancelled();
				progress.setStatus("Annulé.");
				progress.toggleCancel(false);
			}
			catch (ex1) {
				this.debug(ex1);
			}
			break;
		case SWFUpload.UPLOAD_ERROR.UPLOAD_STOPPED:
			try {
				progress = new FileProgress(file,  this.customSettings.upload_target);
				progress.setCancelled();
				progress.setStatus("Arrêté.");
				progress.toggleCancel(true);
			}
			catch (ex2) {
				this.debug(ex2);
			}
		case SWFUpload.UPLOAD_ERROR.UPLOAD_LIMIT_EXCEEDED:
			imageName = "uploadlimit.gif";
			break;
		default:
			alert(message);
			break;
		}

		addImage("_pix/SWFUpload/" + imageName);

	} catch (ex3) {
		this.debug(ex3);
	}

}


function addImage(src, id_image) {
	var objet = "";
	var newImg = document.createElement("img");
	newImg.id = 'img_' + id_image;
	objet = newImg;

	if(id){
		var newLi = document.createElement("li");
		var newLi = new Element('image_' + id, { id:id_image, style:'margin:5px;float:left' });
		/*newLi.id = 'image_' + id_image;
		newLi.style.margin = "5px";
		newLi.setStyle({ float:'left' });*/
		newLi.appendChild(newImg);
		objet = newLi;
	}
	
	document.getElementById("thumbnails").appendChild(objet);
	
	if (newImg.filters) {
		try {
			newImg.filters.item("DXImageTransform.Microsoft.Alpha").opacity = 0;
		} catch (e) {
			// If it is not set initially, the browser will throw an error.  This will set it if it is not set yet.
			newImg.style.filter = 'progid:DXImageTransform.Microsoft.Alpha(opacity=' + 0 + ')';
		}
	} else {
		newImg.style.opacity = 0;
	}

	newImg.onload = function () {
		fadeIn(newImg, 0);
	};
	newImg.src = src;
}

function fadeIn(element, opacity) {
	var reduceOpacityBy = 5;
	var rate = 30;	// 15 fps


	if (opacity < 100) {
		opacity += reduceOpacityBy;
		if (opacity > 100) {
			opacity = 100;
		}

		if (element.filters) {
			try {
				element.filters.item("DXImageTransform.Microsoft.Alpha").opacity = opacity;
			} catch (e) {
				// If it is not set initially, the browser will throw an error.  This will set it if it is not set yet.
				element.style.filter = 'progid:DXImageTransform.Microsoft.Alpha(opacity=' + opacity + ')';
			}
		} else {
			element.style.opacity = opacity / 100;
		}
	}

	if (opacity < 100) {
		setTimeout(function () {
			fadeIn(element, opacity);
		}, rate);
	}
}



/* ******************************************
 *	FileProgress Object
 *	Control object for displaying file info
 * ****************************************** */

function FileProgress(file, targetID) {
	this.fileProgressID = "divFileProgress";

	this.fileProgressWrapper = document.getElementById(this.fileProgressID);
	if (!this.fileProgressWrapper) {
		this.fileProgressWrapper = document.createElement("div");
		this.fileProgressWrapper.className = "progressWrapper";
		this.fileProgressWrapper.id = this.fileProgressID;

		this.fileProgressElement = document.createElement("div");
		this.fileProgressElement.className = "progressContainer";

		var progressCancel = document.createElement("a");
		progressCancel.className = "progressCancel";
		progressCancel.href = "#";
		progressCancel.style.visibility = "hidden";
		progressCancel.appendChild(document.createTextNode(" "));

		var progressText = document.createElement("div");
		progressText.className = "progressName";
		progressText.appendChild(document.createTextNode(file.name));

		var progressBar = document.createElement("div");
		progressBar.className = "progressBarInProgress";

		var progressStatus = document.createElement("div");
		progressStatus.className = "progressBarStatus";
		progressStatus.innerHTML = "&nbsp;";

		this.fileProgressElement.appendChild(progressCancel);
		this.fileProgressElement.appendChild(progressText);
		this.fileProgressElement.appendChild(progressStatus);
		this.fileProgressElement.appendChild(progressBar);

		this.fileProgressWrapper.appendChild(this.fileProgressElement);

		document.getElementById(targetID).appendChild(this.fileProgressWrapper);
		fadeIn(this.fileProgressWrapper, 0);

	} else {
		this.fileProgressElement = this.fileProgressWrapper.firstChild;
		this.fileProgressElement.childNodes[1].firstChild.nodeValue = file.name;
	}

	this.height = this.fileProgressWrapper.offsetHeight;

}
FileProgress.prototype.setProgress = function (percentage) {
	this.fileProgressElement.className = "progressContainer green";
	this.fileProgressElement.childNodes[3].className = "progressBarInProgress";
	this.fileProgressElement.childNodes[3].style.width = percentage + "%";
};
FileProgress.prototype.setComplete = function () {
	this.fileProgressElement.className = "progressContainer blue";
	this.fileProgressElement.childNodes[3].className = "progressBarComplete";
	this.fileProgressElement.childNodes[3].style.width = "";

};
FileProgress.prototype.setError = function () {
	this.fileProgressElement.className = "progressContainer red";
	this.fileProgressElement.childNodes[3].className = "progressBarError";
	this.fileProgressElement.childNodes[3].style.width = "";

};
FileProgress.prototype.setCancelled = function () {
	this.fileProgressElement.className = "progressContainer";
	this.fileProgressElement.childNodes[3].className = "progressBarError";
	this.fileProgressElement.childNodes[3].style.width = "";

};
FileProgress.prototype.setStatus = function (status) {
	this.fileProgressElement.childNodes[2].innerHTML = status;
};

FileProgress.prototype.toggleCancel = function (show, swfuploadInstance) {
	this.fileProgressElement.childNodes[0].style.visibility = show ? "visible" : "hidden";
	if (swfuploadInstance) {
		var fileID = this.fileProgressID;
		this.fileProgressElement.childNodes[0].onclick = function () {
			swfuploadInstance.cancelUpload(fileID);
			return false;
		};
	}
};
/**
 * SWFUpload: http://www.swfupload.org, http://swfupload.googlecode.com
 *
 * mmSWFUpload 1.0: Flash upload dialog - http://profandesign.se/swfupload/,  http://www.vinterwebb.se/
 *
 * SWFUpload is (c) 2006-2007 Lars Huring, Olov Nilzén and Mammon Media and is released under the MIT License:
 * http://www.opensource.org/licenses/mit-license.php
 *
 * SWFUpload 2 is (c) 2007-2008 Jake Roberts and is released under the MIT License:
 * http://www.opensource.org/licenses/mit-license.php
 *
 */


/* ******************* */
/* Constructor & Init  */
/* ******************* */
var SWFUpload;

if (SWFUpload == undefined) {
	SWFUpload = function (settings) {
		this.initSWFUpload(settings);
	};
}

SWFUpload.prototype.initSWFUpload = function (settings) {
	try {
		this.customSettings = {};	// A container where developers can place their own settings associated with this instance.
		this.settings = settings;
		this.eventQueue = [];
		this.movieName = "SWFUpload_" + SWFUpload.movieCount++;
		this.movieElement = null;

		// Setup global control tracking
		SWFUpload.instances[this.movieName] = this;

		// Load the settings.  Load the Flash movie.
		this.initSettings();
		this.loadFlash();
		this.displayDebugInfo();
	} catch (ex) {
		delete SWFUpload.instances[this.movieName];
		throw ex;
	}
};

/* *************** */
/* Static Members  */
/* *************** */
SWFUpload.instances = {};
SWFUpload.movieCount = 0;
SWFUpload.version = "2.2.0 Beta 2";
SWFUpload.QUEUE_ERROR = {
	QUEUE_LIMIT_EXCEEDED	  		: -100,
	FILE_EXCEEDS_SIZE_LIMIT  		: -110,
	ZERO_BYTE_FILE			  		: -120,
	INVALID_FILETYPE		  		: -130
};
SWFUpload.UPLOAD_ERROR = {
	HTTP_ERROR				  		: -200,
	MISSING_UPLOAD_URL	      		: -210,
	IO_ERROR				  		: -220,
	SECURITY_ERROR			  		: -230,
	UPLOAD_LIMIT_EXCEEDED	  		: -240,
	UPLOAD_FAILED			  		: -250,
	SPECIFIED_FILE_ID_NOT_FOUND		: -260,
	FILE_VALIDATION_FAILED	  		: -270,
	FILE_CANCELLED			  		: -280,
	UPLOAD_STOPPED					: -290
};
SWFUpload.FILE_STATUS = {
	QUEUED		 : -1,
	IN_PROGRESS	 : -2,
	ERROR		 : -3,
	COMPLETE	 : -4,
	CANCELLED	 : -5
};
SWFUpload.BUTTON_ACTION = {
	SELECT_FILE  : -100,
	SELECT_FILES : -110,
	START_UPLOAD : -120
};
SWFUpload.CURSOR = {
	ARROW : -1,
	HAND : -2
};
SWFUpload.WINDOW_MODE = {
	WINDOW : "window",
	TRANSPARENT : "transparent",
	OPAQUE : "opaque"
};

/* ******************** */
/* Instance Members  */
/* ******************** */

// Private: initSettings ensures that all the
// settings are set, getting a default value if one was not assigned.
SWFUpload.prototype.initSettings = function () {
	this.ensureDefault = function (settingName, defaultValue) {
		this.settings[settingName] = (this.settings[settingName] == undefined) ? defaultValue : this.settings[settingName];
	};
	
	// Upload backend settings
	this.ensureDefault("upload_url", "");
	this.ensureDefault("file_post_name", "Filedata");
	this.ensureDefault("post_params", {});
	this.ensureDefault("use_query_string", false);
	this.ensureDefault("requeue_on_error", false);
	this.ensureDefault("http_success", []);
	
	// File Settings
	this.ensureDefault("file_types", "*.*");
	this.ensureDefault("file_types_description", "All Files");
	this.ensureDefault("file_size_limit", 0);	// Default zero means "unlimited"
	this.ensureDefault("file_upload_limit", 0);
	this.ensureDefault("file_queue_limit", 0);

	// Flash Settings
	this.ensureDefault("flash_url", "swfupload.swf");
	this.ensureDefault("prevent_swf_caching", true);
	
	// Button Settings
	this.ensureDefault("button_image_url", "");
	this.ensureDefault("button_width", 1);
	this.ensureDefault("button_height", 1);
	this.ensureDefault("button_text", "");
	this.ensureDefault("button_text_style", "color: #000000; font-size: 16pt;");
	this.ensureDefault("button_text_top_padding", 0);
	this.ensureDefault("button_text_left_padding", 0);
	this.ensureDefault("button_action", SWFUpload.BUTTON_ACTION.SELECT_FILES);
	this.ensureDefault("button_disabled", false);
	this.ensureDefault("button_placeholder_id", null);
	this.ensureDefault("button_cursor", SWFUpload.CURSOR.ARROW);
	this.ensureDefault("button_window_mode", SWFUpload.WINDOW_MODE.WINDOW);
	
	// Debug Settings
	this.ensureDefault("debug", false);
	this.settings.debug_enabled = this.settings.debug;	// Here to maintain v2 API
	
	// Event Handlers
	this.settings.return_upload_start_handler = this.returnUploadStart;
	this.ensureDefault("swfupload_loaded_handler", null);
	this.ensureDefault("file_dialog_start_handler", null);
	this.ensureDefault("file_queued_handler", null);
	this.ensureDefault("file_queue_error_handler", null);
	this.ensureDefault("file_dialog_complete_handler", null);
	
	this.ensureDefault("upload_start_handler", null);
	this.ensureDefault("upload_progress_handler", null);
	this.ensureDefault("upload_error_handler", null);
	this.ensureDefault("upload_success_handler", null);
	this.ensureDefault("upload_complete_handler", null);
	
	this.ensureDefault("debug_handler", this.debugMessage);

	this.ensureDefault("custom_settings", {});

	// Other settings
	this.customSettings = this.settings.custom_settings;
	
	// Update the flash url if needed
	if (this.settings.prevent_swf_caching) {
		this.settings.flash_url = this.settings.flash_url + "?swfuploadrnd=" + Math.floor(Math.random() * 999999999);
	}
	
	delete this.ensureDefault;
};

SWFUpload.prototype.loadFlash = function () {
	if (this.settings.button_placeholder_id !== "") {
		this.replaceWithFlash();
	} else {
		this.appendFlash();
	}
};

// Private: appendFlash gets the HTML tag for the Flash
// It then appends the flash to the body
SWFUpload.prototype.appendFlash = function () {
	var targetElement, container;

	// Make sure an element with the ID we are going to use doesn't already exist
	if (document.getElementById(this.movieName) !== null) {
		throw "ID " + this.movieName + " is already in use. The Flash Object could not be added";
	}

	// Get the body tag where we will be adding the flash movie
	targetElement = document.getElementsByTagName("body")[0];

	if (targetElement == undefined) {
		throw "Could not find the 'body' element.";
	}

	// Append the container and load the flash
	container = document.createElement("div");
	container.style.width = "1px";
	container.style.height = "1px";
	container.style.overflow = "hidden";

	targetElement.appendChild(container);
	container.innerHTML = this.getFlashHTML();	// Using innerHTML is non-standard but the only sensible way to dynamically add Flash in IE (and maybe other browsers)
};

// Private: replaceWithFlash replaces the button_placeholder element with the flash movie.
SWFUpload.prototype.replaceWithFlash = function () {
	var targetElement, tempParent;

	// Make sure an element with the ID we are going to use doesn't already exist
	if (document.getElementById(this.movieName) !== null) {
		throw "ID " + this.movieName + " is already in use. The Flash Object could not be added";
	}

	// Get the element where we will be placing the flash movie
	targetElement = document.getElementById(this.settings.button_placeholder_id);

	if (targetElement == undefined) {
		throw "Could not find the placeholder element.";
	}

	// Append the container and load the flash
	tempParent = document.createElement("div");
	tempParent.innerHTML = this.getFlashHTML();	// Using innerHTML is non-standard but the only sensible way to dynamically add Flash in IE (and maybe other browsers)
	targetElement.parentNode.replaceChild(tempParent.firstChild, targetElement);

};

// Private: getFlashHTML generates the object tag needed to embed the flash in to the document
SWFUpload.prototype.getFlashHTML = function () {
	// Flash Satay object syntax: http://www.alistapart.com/articles/flashsatay
	return ['<object id="', this.movieName, '" type="application/x-shockwave-flash" data="', this.settings.flash_url, '" width="', this.settings.button_width, '" height="', this.settings.button_height, '" class="swfupload">',
				'<param name="wmode" value="', this.settings.button_window_mode , '" />',
				'<param name="movie" value="', this.settings.flash_url, '" />',
				'<param name="quality" value="high" />',
				'<param name="menu" value="false" />',
				'<param name="allowScriptAccess" value="always" />',
				'<param name="flashvars" value="' + this.getFlashVars() + '" />',
				'</object>'].join("");
};

// Private: getFlashVars builds the parameter string that will be passed
// to flash in the flashvars param.
SWFUpload.prototype.getFlashVars = function () {
	// Build a string from the post param object
	var paramString = this.buildParamString();
	var httpSuccessString = this.settings.http_success.join(",");
	
	// Build the parameter string
	return ["movieName=", encodeURIComponent(this.movieName),
			"&amp;uploadURL=", encodeURIComponent(this.settings.upload_url),
			"&amp;useQueryString=", encodeURIComponent(this.settings.use_query_string),
			"&amp;requeueOnError=", encodeURIComponent(this.settings.requeue_on_error),
			"&amp;httpSuccess=", encodeURIComponent(httpSuccessString),
			"&amp;params=", encodeURIComponent(paramString),
			"&amp;filePostName=", encodeURIComponent(this.settings.file_post_name),
			"&amp;fileTypes=", encodeURIComponent(this.settings.file_types),
			"&amp;fileTypesDescription=", encodeURIComponent(this.settings.file_types_description),
			"&amp;fileSizeLimit=", encodeURIComponent(this.settings.file_size_limit),
			"&amp;fileUploadLimit=", encodeURIComponent(this.settings.file_upload_limit),
			"&amp;fileQueueLimit=", encodeURIComponent(this.settings.file_queue_limit),
			"&amp;debugEnabled=", encodeURIComponent(this.settings.debug_enabled),
			"&amp;buttonImageURL=", encodeURIComponent(this.settings.button_image_url),
			"&amp;buttonWidth=", encodeURIComponent(this.settings.button_width),
			"&amp;buttonHeight=", encodeURIComponent(this.settings.button_height),
			"&amp;buttonText=", encodeURIComponent(this.settings.button_text),
			"&amp;buttonTextTopPadding=", encodeURIComponent(this.settings.button_text_top_padding),
			"&amp;buttonTextLeftPadding=", encodeURIComponent(this.settings.button_text_left_padding),
			"&amp;buttonTextStyle=", encodeURIComponent(this.settings.button_text_style),
			"&amp;buttonAction=", encodeURIComponent(this.settings.button_action),
			"&amp;buttonDisabled=", encodeURIComponent(this.settings.button_disabled),
			"&amp;buttonCursor=", encodeURIComponent(this.settings.button_cursor)
		].join("");
};

// Public: getMovieElement retrieves the DOM reference to the Flash element added by SWFUpload
// The element is cached after the first lookup
SWFUpload.prototype.getMovieElement = function () {
	if (this.movieElement == undefined) {
		this.movieElement = document.getElementById(this.movieName);
	}

	if (this.movieElement === null) {
		throw "Could not find Flash element";
	}
	
	return this.movieElement;
};

// Private: buildParamString takes the name/value pairs in the post_params setting object
// and joins them up in to a string formatted "name=value&amp;name=value"
SWFUpload.prototype.buildParamString = function () {
	var postParams = this.settings.post_params; 
	var paramStringPairs = [];

	if (typeof(postParams) === "object") {
		for (var name in postParams) {
			if (postParams.hasOwnProperty(name)) {
				paramStringPairs.push(encodeURIComponent(name.toString()) + "=" + encodeURIComponent(postParams[name].toString()));
			}
		}
	}

	return paramStringPairs.join("&amp;");
};

// Public: Used to remove a SWFUpload instance from the page. This method strives to remove
// all references to the SWF, and other objects so memory is properly freed.
// Returns true if everything was destroyed. Returns a false if a failure occurs leaving SWFUpload in an inconsistant state.
SWFUpload.prototype.destroy = function () {
	try {
		// Make sure Flash is done before we try to remove it
		this.stopUpload();
		
		// Remove the SWFUpload DOM nodes
		var movieElement = null;
		try {
			movieElement = this.getMovieElement();
		} catch (ex) {
		}
		
		if (movieElement != undefined && movieElement.parentNode != undefined && typeof movieElement.parentNode.removeChild === "function") {
			var container = movieElement.parentNode;
			if (container != undefined) {
				container.removeChild(movieElement);
				if (container.parentNode != undefined && typeof container.parentNode.removeChild === "function") {
					container.parentNode.removeChild(container);
				}
			}
		}
		
		// Destroy references
		SWFUpload.instances[this.movieName] = null;
		delete SWFUpload.instances[this.movieName];

		delete this.movieElement;
		delete this.settings;
		delete this.customSettings;
		delete this.eventQueue;
		delete this.movieName;
		
		delete window[this.movieName];
		
		return true;
	} catch (ex1) {
		return false;
	}
};

// Public: displayDebugInfo prints out settings and configuration
// information about this SWFUpload instance.
// This function (and any references to it) can be deleted when placing
// SWFUpload in production.
SWFUpload.prototype.displayDebugInfo = function () {
	this.debug(
		[
			"---SWFUpload Instance Info---\n",
			"Version: ", SWFUpload.version, "\n",
			"Movie Name: ", this.movieName, "\n",
			"Settings:\n",
			"\t", "upload_url:               ", this.settings.upload_url, "\n",
			"\t", "flash_url:                ", this.settings.flash_url, "\n",
			"\t", "use_query_string:         ", this.settings.use_query_string.toString(), "\n",
			"\t", "requeue_on_error:         ", this.settings.requeue_on_error.toString(), "\n",
			"\t", "http_success:             ", this.settings.http_success.join(", "), "\n",
			"\t", "file_post_name:           ", this.settings.file_post_name, "\n",
			"\t", "post_params:              ", this.settings.post_params.toString(), "\n",
			"\t", "file_types:               ", this.settings.file_types, "\n",
			"\t", "file_types_description:   ", this.settings.file_types_description, "\n",
			"\t", "file_size_limit:          ", this.settings.file_size_limit, "\n",
			"\t", "file_upload_limit:        ", this.settings.file_upload_limit, "\n",
			"\t", "file_queue_limit:         ", this.settings.file_queue_limit, "\n",
			"\t", "debug:                    ", this.settings.debug.toString(), "\n",

			"\t", "prevent_swf_caching:      ", this.settings.prevent_swf_caching.toString(), "\n",

			"\t", "button_placeholder_id:    ", this.settings.button_placeholder_id.toString(), "\n",
			"\t", "button_image_url:         ", this.settings.button_image_url.toString(), "\n",
			"\t", "button_width:             ", this.settings.button_width.toString(), "\n",
			"\t", "button_height:            ", this.settings.button_height.toString(), "\n",
			"\t", "button_text:              ", this.settings.button_text.toString(), "\n",
			"\t", "button_text_style:        ", this.settings.button_text_style.toString(), "\n",
			"\t", "button_text_top_padding:  ", this.settings.button_text_top_padding.toString(), "\n",
			"\t", "button_text_left_padding: ", this.settings.button_text_left_padding.toString(), "\n",
			"\t", "button_action:            ", this.settings.button_action.toString(), "\n",
			"\t", "button_disabled:          ", this.settings.button_disabled.toString(), "\n",

			"\t", "custom_settings:          ", this.settings.custom_settings.toString(), "\n",
			"Event Handlers:\n",
			"\t", "swfupload_loaded_handler assigned:  ", (typeof this.settings.swfupload_loaded_handler === "function").toString(), "\n",
			"\t", "file_dialog_start_handler assigned: ", (typeof this.settings.file_dialog_start_handler === "function").toString(), "\n",
			"\t", "file_queued_handler assigned:       ", (typeof this.settings.file_queued_handler === "function").toString(), "\n",
			"\t", "file_queue_error_handler assigned:  ", (typeof this.settings.file_queue_error_handler === "function").toString(), "\n",
			"\t", "upload_start_handler assigned:      ", (typeof this.settings.upload_start_handler === "function").toString(), "\n",
			"\t", "upload_progress_handler assigned:   ", (typeof this.settings.upload_progress_handler === "function").toString(), "\n",
			"\t", "upload_error_handler assigned:      ", (typeof this.settings.upload_error_handler === "function").toString(), "\n",
			"\t", "upload_success_handler assigned:    ", (typeof this.settings.upload_success_handler === "function").toString(), "\n",
			"\t", "upload_complete_handler assigned:   ", (typeof this.settings.upload_complete_handler === "function").toString(), "\n",
			"\t", "debug_handler assigned:             ", (typeof this.settings.debug_handler === "function").toString(), "\n"
		].join("")
	);
};

/* Note: addSetting and getSetting are no longer used by SWFUpload but are included
	the maintain v2 API compatibility
*/
// Public: (Deprecated) addSetting adds a setting value. If the value given is undefined or null then the default_value is used.
SWFUpload.prototype.addSetting = function (name, value, default_value) {
    if (value == undefined) {
        return (this.settings[name] = default_value);
    } else {
        return (this.settings[name] = value);
	}
};

// Public: (Deprecated) getSetting gets a setting. Returns an empty string if the setting was not found.
SWFUpload.prototype.getSetting = function (name) {
    if (this.settings[name] != undefined) {
        return this.settings[name];
	}

    return "";
};



// Private: callFlash handles function calls made to the Flash element.
// Calls are made with a setTimeout for some functions to work around
// bugs in the ExternalInterface library.
SWFUpload.prototype.callFlash = function (functionName, argumentArray) {
	argumentArray = argumentArray || [];
	
	var movieElement = this.getMovieElement();
	var returnValue;

	if (typeof movieElement[functionName] === "function") {
		// We have to go through all this if/else stuff because the Flash functions don't have apply() and only accept the exact number of arguments.
		if (argumentArray.length === 0) {
			returnValue = movieElement[functionName]();
		} else if (argumentArray.length === 1) {
			returnValue = movieElement[functionName](argumentArray[0]);
		} else if (argumentArray.length === 2) {
			returnValue = movieElement[functionName](argumentArray[0], argumentArray[1]);
		} else if (argumentArray.length === 3) {
			returnValue = movieElement[functionName](argumentArray[0], argumentArray[1], argumentArray[2]);
		} else {
			throw "Too many arguments";
		}
		
		// Unescape file post param values
		if (returnValue != undefined && typeof returnValue.post === "object") {
			returnValue = this.unescapeFilePostParams(returnValue);
		}
		
		return returnValue;
	} else {
		throw "Invalid function name: " + functionName;
	}
};


/* *****************************
	-- Flash control methods --
	Your UI should use these
	to operate SWFUpload
   ***************************** */

// Public: selectFile causes a File Selection Dialog window to appear.  This
// dialog only allows 1 file to be selected. WARNING: this function does not work in Flash Player 10
SWFUpload.prototype.selectFile = function () {
	this.callFlash("SelectFile");
};

// Public: selectFiles causes a File Selection Dialog window to appear/ This
// dialog allows the user to select any number of files
// Flash Bug Warning: Flash limits the number of selectable files based on the combined length of the file names.
// If the selection name length is too long the dialog will fail in an unpredictable manner.  There is no work-around
// for this bug.  WARNING: this function does not work in Flash Player 10
SWFUpload.prototype.selectFiles = function () {
	this.callFlash("SelectFiles");
};


// Public: startUpload starts uploading the first file in the queue unless
// the optional parameter 'fileID' specifies the ID 
SWFUpload.prototype.startUpload = function (fileID) {
	this.callFlash("StartUpload", [fileID]);
};

// Public: cancelUpload cancels any queued file.  The fileID parameter may be the file ID or index.
// If you do not specify a fileID the current uploading file or first file in the queue is cancelled.
// If you do not want the uploadError event to trigger you can specify false for the triggerErrorEvent parameter.
SWFUpload.prototype.cancelUpload = function (fileID, triggerErrorEvent) {
	if (triggerErrorEvent !== false) {
		triggerErrorEvent = true;
	}
	this.callFlash("CancelUpload", [fileID, triggerErrorEvent]);
};

// Public: stopUpload stops the current upload and requeues the file at the beginning of the queue.
// If nothing is currently uploading then nothing happens.
SWFUpload.prototype.stopUpload = function () {
	this.callFlash("StopUpload");
};

/* ************************
 * Settings methods
 *   These methods change the SWFUpload settings.
 *   SWFUpload settings should not be changed directly on the settings object
 *   since many of the settings need to be passed to Flash in order to take
 *   effect.
 * *********************** */

// Public: getStats gets the file statistics object.
SWFUpload.prototype.getStats = function () {
	return this.callFlash("GetStats");
};

// Public: setStats changes the SWFUpload statistics.  You shouldn't need to 
// change the statistics but you can.  Changing the statistics does not
// affect SWFUpload accept for the successful_uploads count which is used
// by the upload_limit setting to determine how many files the user may upload.
SWFUpload.prototype.setStats = function (statsObject) {
	this.callFlash("SetStats", [statsObject]);
};

// Public: getFile retrieves a File object by ID or Index.  If the file is
// not found then 'null' is returned.
SWFUpload.prototype.getFile = function (fileID) {
	if (typeof(fileID) === "number") {
		return this.callFlash("GetFileByIndex", [fileID]);
	} else {
		return this.callFlash("GetFile", [fileID]);
	}
};

// Public: addFileParam sets a name/value pair that will be posted with the
// file specified by the Files ID.  If the name already exists then the
// exiting value will be overwritten.
SWFUpload.prototype.addFileParam = function (fileID, name, value) {
	return this.callFlash("AddFileParam", [fileID, name, value]);
};

// Public: removeFileParam removes a previously set (by addFileParam) name/value
// pair from the specified file.
SWFUpload.prototype.removeFileParam = function (fileID, name) {
	this.callFlash("RemoveFileParam", [fileID, name]);
};

// Public: setUploadUrl changes the upload_url setting.
SWFUpload.prototype.setUploadURL = function (url) {
	this.settings.upload_url = url.toString();
	this.callFlash("SetUploadURL", [url]);
};

// Public: setPostParams changes the post_params setting
SWFUpload.prototype.setPostParams = function (paramsObject) {
	this.settings.post_params = paramsObject;
	this.callFlash("SetPostParams", [paramsObject]);
};

// Public: addPostParam adds post name/value pair.  Each name can have only one value.
SWFUpload.prototype.addPostParam = function (name, value) {
	this.settings.post_params[name] = value;
	this.callFlash("SetPostParams", [this.settings.post_params]);
};

// Public: removePostParam deletes post name/value pair.
SWFUpload.prototype.removePostParam = function (name) {
	delete this.settings.post_params[name];
	this.callFlash("SetPostParams", [this.settings.post_params]);
};

// Public: setFileTypes changes the file_types setting and the file_types_description setting
SWFUpload.prototype.setFileTypes = function (types, description) {
	this.settings.file_types = types;
	this.settings.file_types_description = description;
	this.callFlash("SetFileTypes", [types, description]);
};

// Public: setFileSizeLimit changes the file_size_limit setting
SWFUpload.prototype.setFileSizeLimit = function (fileSizeLimit) {
	this.settings.file_size_limit = fileSizeLimit;
	this.callFlash("SetFileSizeLimit", [fileSizeLimit]);
};

// Public: setFileUploadLimit changes the file_upload_limit setting
SWFUpload.prototype.setFileUploadLimit = function (fileUploadLimit) {
	this.settings.file_upload_limit = fileUploadLimit;
	this.callFlash("SetFileUploadLimit", [fileUploadLimit]);
};

// Public: setFileQueueLimit changes the file_queue_limit setting
SWFUpload.prototype.setFileQueueLimit = function (fileQueueLimit) {
	this.settings.file_queue_limit = fileQueueLimit;
	this.callFlash("SetFileQueueLimit", [fileQueueLimit]);
};

// Public: setFilePostName changes the file_post_name setting
SWFUpload.prototype.setFilePostName = function (filePostName) {
	this.settings.file_post_name = filePostName;
	this.callFlash("SetFilePostName", [filePostName]);
};

// Public: setUseQueryString changes the use_query_string setting
SWFUpload.prototype.setUseQueryString = function (useQueryString) {
	this.settings.use_query_string = useQueryString;
	this.callFlash("SetUseQueryString", [useQueryString]);
};

// Public: setRequeueOnError changes the requeue_on_error setting
SWFUpload.prototype.setRequeueOnError = function (requeueOnError) {
	this.settings.requeue_on_error = requeueOnError;
	this.callFlash("SetRequeueOnError", [requeueOnError]);
};

// Public: setHTTPSuccess changes the http_success setting
SWFUpload.prototype.setHTTPSuccess = function (http_status_codes) {
	if (typeof http_status_codes === "string") {
		http_status_codes = http_status_codes.replace(" ", "").split(",");
	}
	
	this.settings.http_success = http_status_codes;
	this.callFlash("SetHTTPSuccess", [http_status_codes]);
};


// Public: setDebugEnabled changes the debug_enabled setting
SWFUpload.prototype.setDebugEnabled = function (debugEnabled) {
	this.settings.debug_enabled = debugEnabled;
	this.callFlash("SetDebugEnabled", [debugEnabled]);
};

// Public: setButtonImageURL loads a button image sprite
SWFUpload.prototype.setButtonImageURL = function (buttonImageURL) {
	if (buttonImageURL == undefined) {
		buttonImageURL = "";
	}
	
	this.settings.button_image_url = buttonImageURL;
	this.callFlash("SetButtonImageURL", [buttonImageURL]);
};

// Public: setButtonDimensions resizes the Flash Movie and button
SWFUpload.prototype.setButtonDimensions = function (width, height) {
	this.settings.button_width = width;
	this.settings.button_height = height;
	
	var movie = this.getMovieElement();
	if (movie != undefined) {
		movie.style.width = width + "px";
		movie.style.height = height + "px";
	}
	
	this.callFlash("SetButtonDimensions", [width, height]);
};
// Public: setButtonText Changes the text overlaid on the button
SWFUpload.prototype.setButtonText = function (html) {
	this.settings.button_text = html;
	this.callFlash("SetButtonText", [html]);
};
// Public: setButtonTextPadding changes the top and left padding of the text overlay
SWFUpload.prototype.setButtonTextPadding = function (left, top) {
	this.settings.button_text_top_padding = top;
	this.settings.button_text_left_padding = left;
	this.callFlash("SetButtonTextPadding", [left, top]);
};

// Public: setButtonTextStyle changes the CSS used to style the HTML/Text overlaid on the button
SWFUpload.prototype.setButtonTextStyle = function (css) {
	this.settings.button_text_style = css;
	this.callFlash("SetButtonTextStyle", [css]);
};
// Public: setButtonDisabled disables/enables the button
SWFUpload.prototype.setButtonDisabled = function (isDisabled) {
	this.settings.button_disabled = isDisabled;
	this.callFlash("SetButtonDisabled", [isDisabled]);
};
// Public: setButtonAction sets the action that occurs when the button is clicked
SWFUpload.prototype.setButtonAction = function (buttonAction) {
	this.settings.button_action = buttonAction;
	this.callFlash("SetButtonAction", [buttonAction]);
};

// Public: setButtonCursor changes the mouse cursor displayed when hovering over the button
SWFUpload.prototype.setButtonCursor = function (cursor) {
	this.settings.button_cursor = cursor;
	this.callFlash("SetButtonCursor", [cursor]);
};

/* *******************************
	Flash Event Interfaces
	These functions are used by Flash to trigger the various
	events.
	
	All these functions a Private.
	
	Because the ExternalInterface library is buggy the event calls
	are added to a queue and the queue then executed by a setTimeout.
	This ensures that events are executed in a determinate order and that
	the ExternalInterface bugs are avoided.
******************************* */

SWFUpload.prototype.queueEvent = function (handlerName, argumentArray) {
	// Warning: Don't call this.debug inside here or you'll create an infinite loop
	
	if (argumentArray == undefined) {
		argumentArray = [];
	} else if (!(argumentArray instanceof Array)) {
		argumentArray = [argumentArray];
	}
	
	var self = this;
	if (typeof this.settings[handlerName] === "function") {
		// Queue the event
		this.eventQueue.push(function () {
			this.settings[handlerName].apply(this, argumentArray);
		});
		
		// Execute the next queued event
		setTimeout(function () {
			self.executeNextEvent();
		}, 0);
		
	} else if (this.settings[handlerName] !== null) {
		throw "Event handler " + handlerName + " is unknown or is not a function";
	}
};

// Private: Causes the next event in the queue to be executed.  Since events are queued using a setTimeout
// we must queue them in order to garentee that they are executed in order.
SWFUpload.prototype.executeNextEvent = function () {
	// Warning: Don't call this.debug inside here or you'll create an infinite loop

	var  f = this.eventQueue ? this.eventQueue.shift() : null;
	if (typeof(f) === "function") {
		f.apply(this);
	}
};

// Private: unescapeFileParams is part of a workaround for a flash bug where objects passed through ExternalInterface cannot have
// properties that contain characters that are not valid for JavaScript identifiers. To work around this
// the Flash Component escapes the parameter names and we must unescape again before passing them along.
SWFUpload.prototype.unescapeFilePostParams = function (file) {
	var reg = /[$]([0-9a-f]{4})/i;
	var unescapedPost = {};
	var uk;

	if (file != undefined) {
		for (var k in file.post) {
			if (file.post.hasOwnProperty(k)) {
				uk = k;
				var match;
				while ((match = reg.exec(uk)) !== null) {
					uk = uk.replace(match[0], String.fromCharCode(parseInt("0x" + match[1], 16)));
				}
				unescapedPost[uk] = file.post[k];
			}
		}

		file.post = unescapedPost;
	}

	return file;
};

SWFUpload.prototype.flashReady = function () {
	// Check that the movie element is loaded correctly with its ExternalInterface methods defined
	var movieElement = this.getMovieElement();
	if (typeof movieElement.StartUpload !== "function") {
		throw "ExternalInterface methods failed to initialize.";
	}

	// Fix IE Flash/Form bug
	if (window[this.movieName] == undefined) {
		window[this.movieName] = movieElement;
	}
	
	this.queueEvent("swfupload_loaded_handler");
};


/* This is a chance to do something before the browse window opens */
SWFUpload.prototype.fileDialogStart = function () {
	this.queueEvent("file_dialog_start_handler");
};


/* Called when a file is successfully added to the queue. */
SWFUpload.prototype.fileQueued = function (file) {
	file = this.unescapeFilePostParams(file);
	this.queueEvent("file_queued_handler", file);
};


/* Handle errors that occur when an attempt to queue a file fails. */
SWFUpload.prototype.fileQueueError = function (file, errorCode, message) {
	file = this.unescapeFilePostParams(file);
	this.queueEvent("file_queue_error_handler", [file, errorCode, message]);
};

/* Called after the file dialog has closed and the selected files have been queued.
	You could call startUpload here if you want the queued files to begin uploading immediately. */
SWFUpload.prototype.fileDialogComplete = function (numFilesSelected, numFilesQueued) {
	this.queueEvent("file_dialog_complete_handler", [numFilesSelected, numFilesQueued]);
};

SWFUpload.prototype.uploadStart = function (file) {
	file = this.unescapeFilePostParams(file);
	this.queueEvent("return_upload_start_handler", file);
};

SWFUpload.prototype.returnUploadStart = function (file) {
	var returnValue;
	if (typeof this.settings.upload_start_handler === "function") {
		file = this.unescapeFilePostParams(file);
		returnValue = this.settings.upload_start_handler.call(this, file);
	} else if (this.settings.upload_start_handler != undefined) {
		throw "upload_start_handler must be a function";
	}

	// Convert undefined to true so if nothing is returned from the upload_start_handler it is
	// interpretted as 'true'.
	if (returnValue === undefined) {
		returnValue = true;
	}
	
	returnValue = !!returnValue;
	
	this.callFlash("ReturnUploadStart", [returnValue]);
};



SWFUpload.prototype.uploadProgress = function (file, bytesComplete, bytesTotal) {
	file = this.unescapeFilePostParams(file);
	this.queueEvent("upload_progress_handler", [file, bytesComplete, bytesTotal]);
};

SWFUpload.prototype.uploadError = function (file, errorCode, message) {
	file = this.unescapeFilePostParams(file);
	this.queueEvent("upload_error_handler", [file, errorCode, message]);
};

SWFUpload.prototype.uploadSuccess = function (file, serverData) {
	file = this.unescapeFilePostParams(file);
	this.queueEvent("upload_success_handler", [file, serverData]);
};

SWFUpload.prototype.uploadComplete = function (file) {
	file = this.unescapeFilePostParams(file);
	this.queueEvent("upload_complete_handler", file);
};

/* Called by SWFUpload JavaScript and Flash functions when debug is enabled. By default it writes messages to the
   internal debug console.  You can override this event and have messages written where you want. */
SWFUpload.prototype.debug = function (message) {
	this.queueEvent("debug_handler", message);
};


/* **********************************
	Debug Console
	The debug console is a self contained, in page location
	for debug message to be sent.  The Debug Console adds
	itself to the body if necessary.

	The console is automatically scrolled as messages appear.
	
	If you are using your own debug handler or when you deploy to production and
	have debug disabled you can remove these functions to reduce the file size
	and complexity.
********************************** */
   
// Private: debugMessage is the default debug_handler.  If you want to print debug messages
// call the debug() function.  When overriding the function your own function should
// check to see if the debug setting is true before outputting debug information.
SWFUpload.prototype.debugMessage = function (message) {
	if (this.settings.debug) {
		var exceptionMessage, exceptionValues = [];

		// Check for an exception object and print it nicely
		if (typeof message === "object" && typeof message.name === "string" && typeof message.message === "string") {
			for (var key in message) {
				if (message.hasOwnProperty(key)) {
					exceptionValues.push(key + ": " + message[key]);
				}
			}
			exceptionMessage = exceptionValues.join("\n") || "";
			exceptionValues = exceptionMessage.split("\n");
			exceptionMessage = "EXCEPTION: " + exceptionValues.join("\nEXCEPTION: ");
			SWFUpload.Console.writeLine(exceptionMessage);
		} else {
			SWFUpload.Console.writeLine(message);
		}
	}
};

SWFUpload.Console = {};
SWFUpload.Console.writeLine = function (message) {
	var console, documentForm;

	try {
		console = document.getElementById("SWFUpload_Console");

		if (!console) {
			documentForm = document.createElement("form");
			document.getElementsByTagName("body")[0].appendChild(documentForm);

			console = document.createElement("textarea");
			console.id = "SWFUpload_Console";
			console.style.fontFamily = "monospace";
			console.setAttribute("wrap", "off");
			console.wrap = "off";
			console.style.overflow = "auto";
			console.style.width = "700px";
			console.style.height = "350px";
			console.style.margin = "5px";
			documentForm.appendChild(console);
		}

		console.value += message + "\n";

		console.scrollTop = console.scrollHeight - console.clientHeight;
	} catch (ex) {
		alert("Exception: " + ex.name + " Message: " + ex.message);
	}
};
/*
	Queue Plug-in
	
	Features:
		*Adds a cancelQueue() method for cancelling the entire queue.
		*All queued files are uploaded when startUpload() is called.
		*If false is returned from uploadComplete then the queue upload is stopped.
		 If false is not returned (strict comparison) then the queue upload is continued.
		*Adds a QueueComplete event that is fired when all the queued files have finished uploading.
		 Set the event handler with the queue_complete_handler setting.
		
	*/

var SWFUpload;
if (typeof(SWFUpload) === "function") {
	SWFUpload.queue = {};
	
	SWFUpload.prototype.initSettings = (function (oldInitSettings) {
		return function () {
			if (typeof(oldInitSettings) === "function") {
				oldInitSettings.call(this);
			}
			
			this.customSettings.queue_cancelled_flag = false;
			this.customSettings.queue_upload_count = 0;
			
			this.settings.user_upload_complete_handler = this.settings.upload_complete_handler;
			this.settings.upload_complete_handler = SWFUpload.queue.uploadCompleteHandler;
			
			this.settings.queue_complete_handler = this.settings.queue_complete_handler || null;
		};
	})(SWFUpload.prototype.initSettings);

	SWFUpload.prototype.startUpload = function (fileID) {
		this.customSettings.queue_cancelled_flag = false;
		this.callFlash("StartUpload", false, [fileID]);
	};

	SWFUpload.prototype.cancelQueue = function () {
		this.customSettings.queue_cancelled_flag = true;
		this.stopUpload();
		
		var stats = this.getStats();
		while (stats.files_queued > 0) {
			this.cancelUpload();
			stats = this.getStats();
		}
	};
	
	SWFUpload.queue.uploadCompleteHandler = function (file) {
		var user_upload_complete_handler = this.settings.user_upload_complete_handler;
		var continueUpload;
		
		if (file.filestatus === SWFUpload.FILE_STATUS.COMPLETE) {
			this.customSettings.queue_upload_count++;
		}

		if (typeof(user_upload_complete_handler) === "function") {
			continueUpload = (user_upload_complete_handler.call(this, file) === false) ? false : true;
		} else {
			continueUpload = true;
		}
		
		if (continueUpload) {
			var stats = this.getStats();
			if (stats.files_queued > 0 && this.customSettings.queue_cancelled_flag === false) {
				this.startUpload();
			} else if (this.customSettings.queue_cancelled_flag === false) {
				this.queueEvent("queue_complete_handler", [this.customSettings.queue_upload_count]);
				this.customSettings.queue_upload_count = 0;
			} else {
				this.customSettings.queue_cancelled_flag = false;
				this.customSettings.queue_upload_count = 0;
			}
		}
	};
}