/*  Prototype JavaScript framework, version 1.6.0.3
 *  (c) 2005-2008 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: '1.6.0.3',

  Browser: {
    IE:     !!(window.attachEvent &&
      navigator.userAgent.indexOf('Opera') === -1),
    Opera:  navigator.userAgent.indexOf('Opera') > -1,
    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,
    SelectorsAPI: !!document.querySelector,
    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 = (function(m) {
          return function() { return ancestor[m].apply(this, arguments) };
        })(property).wrap(method);

        value.valueOf = method.valueOf.bind(method);
        value.toString = method.toString.bind(method);
      }
      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() : String(object);
    } 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 != null && typeof object == "object" &&
      'splice' in object && 'join' in object;
  },

  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]
      .replace(/\s+/g, '').split(',');
    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);
  },

  defer: function() {
    var args = [0.01].concat($A(arguments));
    return this.delay.apply(this, args);
  },

  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)));
    };
  }
});

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.stripTags().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('')
});

String.prototype.escapeHTML.div.appendChild(String.prototype.escapeHTML.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);
    });
  }
});
Template.Pattern = /(^|.|\r|\n)(#\{(.*?)\})/;

var $break = { };

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

  eachSlice: function(number, iterator, context) {
    var index = -number, slices = [], array = this.toArray();
    if (number < 1) return array;
    while ((index += number) < array.length)
      slices.push(array.slice(index, index+number));
    return slices.collect(iterator, context);
  },

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

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

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

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

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

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

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

    this.each(function(value, index) {
      if (filter.match(value))
        results.push(iterator.call(context, 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) {
    this.each(function(value, index) {
      memo = iterator.call(context, 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 || Prototype.K;
    var result;
    this.each(function(value, index) {
      value = iterator.call(context, value, index);
      if (result == null || value >= result)
        result = value;
    });
    return result;
  },

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

  partition: function(iterator, context) {
    iterator = iterator || Prototype.K;
    var trues = [], falses = [];
    this.each(function(value, index) {
      (iterator.call(context, 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) {
    var results = [];
    this.each(function(value, index) {
      if (!iterator.call(context, value, index))
        results.push(value);
    });
    return results;
  },

  sortBy: function(iterator, context) {
    return this.map(function(value, index) {
      return {
        value: value,
        criteria: iterator.call(context, 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) {
  $A = function(iterable) {
    if (!iterable) return [];
    // In Safari, only use the `toArray` method if it's not a NodeList.
    // A NodeList is a function, has an function `item` property, and a numeric
    // `length` property. Adapted from Google Doctype.
    if (!(typeof iterable === 'function' && typeof iterable.length ===
        'number' && typeof iterable.item === 'function') && 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, context) {
    $R(0, this, true).each(iterator, context);
    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) {
      // simulating poorly supported hasOwnProperty
      if (this._object[key] !== Object.prototype[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.inject([], function(results, pair) {
        var key = encodeURIComponent(pair.key), values = pair.value;

        if (values && typeof values == 'object') {
          if (Object.isArray(values))
            return results.concat(values.map(toQueryPair.curry(key)));
        } else results.push(toQueryPair(key, values));
        return results;
      }).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 && this.isSameOrigin() && 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;
    }
  },

  isSameOrigin: function() {
    var m = this.url.match(/^\s*https?:\/\/[^\/]*/);
    return !m || (m[0] == '#{protocol}//#{domain}#{port}'.interpolate({
      protocol: location.protocol,
      domain: document.domain,
      port: location.port ? ':' + location.port : ''
    }));
  },

  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 ||
        !this.request.isSameOrigin());
    } 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 ||
        !this.request.isSameOrigin());
    } 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 || { });
  if (element) this.Element.prototype = element.prototype;
}).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 = $(element);
    element.style.display = 'none';
    return element;
  },

  show: function(element) {
    element = $(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 (var 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).select("*");
  },

  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(element, 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);

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

    if (ancestor.contains)
      return ancestor.contains(element) && ancestor !== element;

    while (element = element.parentNode)
      if (element == ancestor) 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 || value == 'auto') {
      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 (Prototype.Browser.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.toUpperCase() == 'BODY') break;
        var p = Element.getStyle(element, 'position');
        if (p !== 'static') break;
      }
    } while (element);
    return Element._returnOffset(valueL, valueT);
  },

  absolutize: function(element) {
    element = $(element);
    if (element.getStyle('position') == 'absolute') return element;
    // 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 element;
    // 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 && (element.tagName.toUpperCase() == '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) {
  // IE doesn't report offsets correctly for static elements, so we change them
  // to "relative" to get the values, then change them back.
  Element.Methods.getOffsetParent = Element.Methods.getOffsetParent.wrap(
    function(proceed, element) {
      element = $(element);
      // IE throws an error if element is not in document
      try { element.offsetParent }
      catch(e) { return $(document.body) }
      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;
    }
  );

  $w('positionedOffset viewportOffset').each(function(method) {
    Element.Methods[method] = Element.Methods[method].wrap(
      function(proceed, element) {
        element = $(element);
        try { element.offsetParent }
        catch(e) { return Element._returnOffset(0,0) }
        var position = element.getStyle('position');
        if (position !== 'static') return proceed(element);
        // Trigger hasLayout on the offset parent so that IE6 reports
        // accurate offsetTop and offsetLeft values for position: fixed.
        var offsetParent = element.getOffsetParent();
        if (offsetParent && offsetParent.getStyle('position') === 'fixed')
          offsetParent.setStyle({ zoom: 1 });
        element.setStyle({ position: 'relative' });
        var value = proceed(element);
        element.setStyle({ position: position });
        return value;
      }
    );
  });

  Element.Methods.cumulativeOffset = Element.Methods.cumulativeOffset.wrap(
    function(proceed, element) {
      try { element.offsetParent }
      catch(e) { return Element._returnOffset(0,0) }
      return proceed(element);
    }
  );

  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.extend({
      cellpadding: 'cellPadding',
      cellspacing: 'cellSpacing'
    }, 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 frameBorder').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.toUpperCase() == '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 ('outerHTML' in document.createElement('div')) {
  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.toUpperCase(), 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 = { }, B = Prototype.Browser;
    $w('width height').each(function(d) {
      var D = d.capitalize();
      if (B.WebKit && !document.evaluate) {
        // Safari <3.0 needs self.innerWidth/Height
        dimensions[d] = self['inner' + D];
      } else if (B.Opera && parseFloat(window.opera.version()) < 9.5) {
        // Opera <9.5 needs document.body.clientWidth/Height
        dimensions[d] = document.body['client' + D]
      } else {
        dimensions[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();

    if (this.shouldUseSelectorsAPI()) {
      this.mode = 'selectorsAPI';
    } else if (this.shouldUseXPath()) {
      this.mode = 'xpath';
      this.compileXPathMatcher();
    } else {
      this.mode = "normal";
      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(e))
      return false;

    return true;
  },

  shouldUseSelectorsAPI: function() {
    if (!Prototype.BrowserFeatures.SelectorsAPI) return false;

    if (!Selector._div) Selector._div = new Element('div');

    // Make sure the browser treats the selector as valid. Test on an
    // isolated element to minimize cost of this check.
    try {
      Selector._div.querySelector(this.expression);
    } catch(e) {
      return false;
    }

    return true;
  },

  compileMatcher: function() {
    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;
    var e = this.expression, results;

    switch (this.mode) {
      case 'selectorsAPI':
        // querySelectorAll queries document-wide, then filters to descendants
        // of the context element. That's not what we want.
        // Add an explicit context to the selector if necessary.
        if (root !== document) {
          var oldId = root.id, id = $(root).identify();
          e = "#" + id + " " + e;
        }

        results = $A(root.querySelectorAll(e)).map(Element.extend);
        root.id = oldId;

        return results;
      case 'xpath':
        return document._getElementsByXPath(this.xpath, root);
      default:
       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)]",
      'checked':     "[@checked]",
      'disabled':    "[(@disabled) and (@type!='hidden')]",
      'enabled':     "[not(@disabled) and (@type!='hidden')]",
      '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); c = false;',
    attr: function(m) {
      m[3] = (m[5] || m[6]);
      return new Template('n = h.attr(n, r, "#{1}", "#{3}", "#{2}", c); 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: /^\[((?:[\w]+:)?[\w]+)\]/,
    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 nodeValue && Selector.operators[matches[2]](nodeValue, matches[5] || matches[6]);
    }
  },

  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) {
      var _true = Prototype.emptyFunction;
      for (var i = 0, node; node = nodes[i]; i++)
        node._countedByPrototype = _true;
      return nodes;
    },

    unmark: function(nodes) {
      for (var i = 0, node; node = nodes[i]; i++)
        node._countedByPrototype = 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._countedByPrototype = Prototype.emptyFunction;
      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._countedByPrototype)) node.nodeIndex = j++;
        }
      } else {
        for (var i = 0, j = 1, nodes = parentNode.childNodes; node = nodes[i]; i++)
          if (node.nodeType == 1 && (!ofType || node._countedByPrototype)) 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])._countedByPrototype) {
          n._countedByPrototype = Prototype.emptyFunction;
          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, combinator) {
      if (!nodes) nodes = root.getElementsByTagName("*");
      if (nodes && combinator) nodes = this[combinator](nodes);
      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, combinator) {
      if (!nodes) nodes = root.getElementsByTagName("*");
      if (nodes && combinator) nodes = this[combinator](nodes);
      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._countedByPrototype) {
          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) 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._countedByPrototype) 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 && (!node.type || node.type !== 'hidden'))
          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 == v || nv && nv.startsWith(v); },
    '$=': function(nv, v) { return nv == v || nv && nv.endsWith(v); },
    '*=': function(nv, v) { return nv == v || nv && nv.include(v); },
    '$=': 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() + '-'); }
  },

  split: function(expression) {
    var expressions = [];
    expression.scan(/(([\w#:.~>+()\s-]+|\*|\[.*?\])+)\s*(,|$)/, function(m) {
      expressions.push(m[1].strip());
    });
    return expressions;
  },

  matchElements: function(elements, expression) {
    var matches = $$(expression), h = Selector.handlers;
    h.mark(matches);
    for (var i = 0, results = [], element; element = elements[i]; i++)
      if (element._countedByPrototype) 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) {
    expressions = Selector.split(expressions.join(','));
    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) {
  Object.extend(Selector.handlers, {
    // IE returns comment nodes on getElementsByTagName("*").
    // Filter them out.
    concat: function(a, b) {
      for (var i = 0, node; node = b[i]; i++)
        if (node.tagName !== "!") a.push(node);
      return a;
    },

    // IE improperly serializes _countedByPrototype in (inner|outer)HTML.
    unmark: function(nodes) {
      for (var i = 0, node; node = nodes[i]; i++)
        node.removeAttribute('_countedByPrototype');
      return nodes;
    }
  });
}

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

  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) {
      event = Event.extend(event);

      var node          = event.target,
          type          = event.type,
          currentTarget = event.currentTarget;

      if (currentTarget && currentTarget.tagName) {
        // Firefox screws up the "click" event when moving between radio buttons
        // via arrow keys. It also screws up the "load" and "error" events on images,
        // reporting the document as the target instead of the original image.
        if (type === 'load' || type === 'error' ||
          (type === 'click' && currentTarget.tagName.toLowerCase() === 'input'
            && currentTarget.type === 'radio'))
              node = currentTarget;
      }
      if (node.nodeType == Node.TEXT_NODE) node = node.parentNode;
      return Element.extend(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) {
      var docElement = document.documentElement,
      body = document.body || { scrollLeft: 0, scrollTop: 0 };
      return {
        x: event.pageX || (event.clientX +
          (docElement.scrollLeft || body.scrollLeft) -
          (docElement.clientLeft || 0)),
        y: event.pageY || (event.clientY +
          (docElement.scrollTop || body.scrollTop) -
          (docElement.clientTop || 0))
      };
    },

    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._prototypeEventID) return element._prototypeEventID[0];
    arguments.callee.id = arguments.callee.id || 1;
    return element._prototypeEventID = [++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;
  }


  // Internet Explorer needs to remove event handlers on page unload
  // in order to avoid memory leaks.
  if (window.attachEvent) {
    window.attachEvent("onunload", destroyCache);
  }

  // Safari has a dummy event handler on page unload so that it won't
  // use its bfcache. Safari <= 3.1 has an issue with restoring the "document"
  // object when page is returned to via the back button using its bfcache.
  if (Prototype.Browser.WebKit) {
    window.addEventListener('unload', Prototype.emptyFunction, false);
  }

  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();
// Copyright (c) 2005-2008 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) + .5;
    },
    reverse: function(pos) {
      return 1-pos;
    },
    flicker: function(pos) {
      var pos = ((-Math.cos(pos*Math.PI)/4) + .75) + Math.random()/4;
      return pos > 1 ? 1 : pos;
    },
    wobble: function(pos) {
      return (-Math.cos(pos*Math.PI*(9*pos))/2) + .5;
    },
    pulse: function(pos, pulses) {
      return (-Math.cos((pos*((pulses||5)-.5)*2)*Math.PI)/2) + .5;
    },
    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;

    this.render = (function() {
      function dispatch(effect, eventName) {
        if (effect.options[eventName + 'Internal'])
          effect.options[eventName + 'Internal'](effect);
        if (effect.options[eventName])
          effect.options[eventName](effect);
      }

      return function(pos) {
        if (this.state === "idle") {
          this.state = "running";
          dispatch(this, 'beforeSetup');
          if (this.setup) this.setup();
          dispatch(this, 'afterSetup');
        }
        if (this.state === "running") {
          pos = (this.options.transition(pos) * this.fromToDelta) + this.options.from;
          this.position = pos;
          dispatch(this, 'beforeUpdate');
          if (this.update) this.update(pos);
          dispatch(this, '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();

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

  return new Effect.Tween(null,
    scrollOffsets.top,
    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] || { },
    oldOpacity = element.getInlineOpacity(),
    transition = options.transition || Effect.Transitions.linear,
    reverser   = function(pos){
      return 1 - transition((-Math.cos((pos*(options.pulses||5)*2)*Math.PI)/2) + .5);
    };

  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);
/* based on https://www.bountysource.com/javascripts/fishplate_window.js */
var ModalWindow = {
  setup: function() {
    this.hideBound = this.hide.bind(this);
    this.centerBound = this.center.bind(this);

    var table = this.maker('table'), tr = this.maker('tr'), td = this.maker('td'), tbody = this.maker('tbody');
    var div = this.maker('div');
    var span = this.maker('span');


    this.container = table({'class':'modal_window_container'});
    Element.hide(this.container);
    document.body.insertBefore(this.container, document.body.firstChild);

    this.content = div({'class':'modal_window_content'});
    this.title_wrapper = div({'class':'title_wrapper'});
    this.close_button =  div({'class':'close_button'}, "x close");   
    Event.observe(this.close_button, 'click', this.hideBound);

    this.container.appendChild(
      tbody([
        tr([
          td({'class':'tl'},[span()]),
          td({'class':'tc'},[this.title_wrapper,this.close_button]),
          td({'class':'tr'},[span()])
        ]),
        tr([
          td({'class':'ml'},[span()]),
          td({'class':'mc'},[div({'class':'modal_window_content_wrapper'}, [this.content])]),
          td({'class':'mr'},[span()])
        ]),
        tr([
          td({'class':'bl',rowspan:2},[span()]),
          td({'class':'bc',rowspan:2},[span()]),
          td({'class':'br',rowspan:2},[span()])
        ])
      ])
    );

  },
  show: function() {
    this.already_shown = true;
    if (!this.hideBound) this.setup();
    
    ModalWindowMask.show();
    Element.show(this.container);
    this.refresh();
    Event.observe(ModalWindowMask.mask, 'click', this.hideBound);
    Event.observe(window, 'resize', this.centerBound);
    Event.observe(window, 'scroll', this.centerBound);
  },
  refresh: function() {
	this.updateTitle();
	this.center();
  },
  updateTitle: function() {
    /* The popup dialog dom stays in the browser, so need to remove the title if it exists */
    old_title = this.title_wrapper.getElementsByTagName("h1")[0];
    if (old_title) { old_title.remove()}

    /* Extract the first h1 from the ajax'ed in content into the banner bar */
    new_title = this.content.getElementsByTagName("h1")[0];
    if (new_title) {this.title_wrapper.appendChild(new_title);}

  },
  hide: function() {
    // prevent hide from being called extra times
    if (this.already_shown) this.already_shown = false;
    else return;
    
    Event.stopObserving(ModalWindowMask.mask, 'click', this.hideBound);

    if (this.reload_when_close) {
      Element.hide(this.close_button);
      Element.hide(this.container);
      Element.update(this.content, "<h1>Reloading page</h1><div class='reloading-page'><p>Please wait...</p></div>");
	

      this.center();
      Element.show(this.container);
      
      var uri = window.location.href;
      if (uri.indexOf('#') >= 0) {
        window.location.href = uri.substring(0, uri.indexOf('#')) + (uri.substring(0, uri.indexOf('#')).indexOf('?') == -1 ? '?' : '&') + 'ajax_reload=true' + uri.substring(uri.indexOf('#'));
      } else {
        window.location.href = uri + (uri.indexOf('?') == -1 ? '?' : '&') + 'ajax_reload=true'
      }
    } else {
      ModalWindowMask.hide();    
      Element.hide(this.container);
      Event.stopObserving(window, 'resize', this.centerBound);
      Event.stopObserving(window, 'scroll', this.centerBound);
    }
  },
  center: function() {
    element = this.container;
  	var my_width  = 0;
  	var my_height = 0;
  	var scrollY = 0;

  	if (typeof(window.innerWidth) == 'number' ) {
  		my_width  = window.innerWidth;
  		my_height = window.innerHeight;
  	} else if (document.documentElement && (document.documentElement.clientWidth || document.documentElement.clientHeight)) {
  		my_width  = document.documentElement.clientWidth;
  		my_height = document.documentElement.clientHeight;
  	} else if (document.body && (document.body.clientWidth || document.body.clientHeight)) {
  		my_width  = document.body.clientWidth;
  		my_height = document.body.clientHeight;
  	}

  	if (document.documentElement && document.documentElement.scrollTop) {
  		scrollY = document.documentElement.scrollTop;
  	} else if (document.body && document.body.scrollTop) {
  		scrollY = document.body.scrollTop;
  	} else if (window.pageYOffset) {
  		scrollY = window.pageYOffset;
  	} else if (window.scrollY) {
  		scrollY = window.scrollY;
  	}

  	var elementDimensions = Element.getDimensions(element);

    var setX = ( my_width  - elementDimensions.width  ) / 2;
    var setY = ( my_height - elementDimensions.height ) / 2 + scrollY;

  	setX = ( setX < 0 ) ? 0 : setX;
  	setY = ( setY < 0 ) ? 0 : setY;

  	Element.setStyle(element, {position: 'absolute', left: setX + "px", top: setY + "px"});
  },
  maker: function(tagname) {
  	return function(attributes,children){
    	if (arguments.length == 1 && (attributes instanceof Array || typeof attributes == "string")) {
    	  children = attributes;
    	  attributes = null;				
    	}
    	var e = document.createElement(tagname);
      if (attributes){
    	  for (var name in attributes) {
    	    if (name == 'class') {
    	      Element.addClassName(e, attributes[name]);
    	    } else {
      	    e.setAttribute(name,attributes[name]);
    	    }
    	  }
      }

      if (children != null){
    	  if (children instanceof Array) {
    		  for (var i=0; i < children.length; i++){
    			  var child = children[i];
    			  if (typeof child == "string")
    			    child = document.createTextNode(child);
    			  e.appendChild(child);
    	  	}
    	  } else if (typeof children == "string") {
    	    e.appendChild(document.createTextNode(children));
    	  } else {
    	    e.appendChild(children);
    	  }
      }
      return e;
  	}
  },
  openLinkInModal: function(element, options) {
    options = options || {};
    if (!this.hideBound) this.setup();
    Element.hide(this.container);
    if (options['width']) this.content.setStyle({width:options['width']})
    new Ajax.Updater(this.content, $(element).href, {evalScripts:true, onComplete: this.show.bind(this), method: 'get', requireLogin: options['requireLogin']});
    return false;
  }
};
var ModalWindowMask = {
  update: function() {
    if (!ModalWindowMask.mask) {
      ModalWindowMask.mask = document.createElement("div");
      Element.addClassName(ModalWindowMask.mask, 'modal_window_overlay');
      Element.hide(ModalWindowMask.mask);
      document.body.insertBefore(ModalWindowMask.mask, document.body.firstChild);
      
      ModalWindowMask.updateBound = ModalWindowMask.update.bind();
    }
    var pageSize = ModalWindowMask.getPageSize();
    Element.setStyle(ModalWindowMask.mask, { height: pageSize.pageHeight + 'px'});
  },
  show: function() {
    ModalWindowMask.update();
    Element.show(ModalWindowMask.mask);
    Event.observe(window, 'resize', ModalWindowMask.updateBound);
  },
  hide: function() {
    Element.hide(ModalWindowMask.mask);
    Event.stopObserving(window, 'resize', ModalWindowMask.updateBound);
  },
  getPageSize: function() {
  	var xScroll, yScroll;

  	if (window.innerHeight && window.scrollMaxY) {	
  		xScroll = document.body.scrollWidth;
  		yScroll = window.innerHeight + window.scrollMaxY;
  	} else if (document.body.scrollHeight > document.body.offsetHeight){ // all but Explorer Mac
  		xScroll = document.body.scrollWidth;
  		yScroll = document.body.scrollHeight;
  	} else { // Explorer Mac...would also work in Explorer 6 Strict, Mozilla and Safari
  		xScroll = document.body.offsetWidth;
  		yScroll = document.body.offsetHeight;
  	}

  	var windowWidth, windowHeight;
  	if (self.innerHeight) {	// all except Explorer
  		windowWidth = self.innerWidth;
  		windowHeight = self.innerHeight;
  	} else if (document.documentElement && document.documentElement.clientHeight) { // Explorer 6 Strict Mode
  		windowWidth = document.documentElement.clientWidth;
  		windowHeight = document.documentElement.clientHeight;
  	} else if (document.body) { // other Explorers
  		windowWidth = document.body.clientWidth;
  		windowHeight = document.body.clientHeight;
  	}	

  	// for small pages with total height less then height of the viewport
  	if(yScroll < windowHeight){
  		pageHeight = windowHeight;
  	} else { 
  		pageHeight = yScroll;
  	}

  	// for small pages with total width less then width of the viewport
  	if(xScroll < windowWidth){	
  		pageWidth = windowWidth;
  	} else {
  		pageWidth = xScroll;
  	}


  	return {pageWidth: pageWidth, pageHeight: pageHeight, windowWidth: windowWidth, windowHeight: windowHeight};
  }
};


setTimeout(function() {
  // preload the images so you never see the border loading
  new Image(1,1).src='/images/global/modal2/bl.png';
  new Image(1,1).src='/images/global/modal2/bc.png';
  new Image(1,1).src='/images/global/modal2/br.png';
  new Image(1,1).src='/images/global/modal2/ml.png';
  new Image(1,1).src='/images/global/modal2/mr.png';
  new Image(1,1).src='/images/global/modal2/tl.png';
  new Image(1,1).src='/images/global/modal2/tc.png';
  new Image(1,1).src='/images/global/modal2/tr.png';
  new Image(1,1).src='/images/global/spinner.gif';

},1000);



/**
 * SWFUpload v2.0 by Jacob Roberts, Nov 2007, http://www.swfupload.org, http://linebyline.blogspot.com
 * -------- -------- -------- -------- -------- -------- -------- --------
 * SWFUpload is (c) 2006 Lars Huring and Mammon Media and is released under the MIT License:
 * http://www.opensource.org/licenses/mit-license.php
 *
 * See Changelog.txt for version history
 *
 * Development Notes:
 *  * This version of SWFUpload requires Flash Player 9.0.28 and should autodetect the correct flash version.
 *  * In Linux Flash Player 9 setting the post file variable name does not work. It is always set to "Filedata".
 *  * There is a lot of repeated code that could be refactored to single functions.  Feel free.
 *  * It's dangerous to do "circular calls" between Flash and JavaScript. I've taken steps to try to work around issues
 *     by having the event calls pipe through setTimeout.  However you should still avoid calling in to Flash from
 *     within the event handler methods.  Especially the "startUpload" event since it cannot use the setTimeout hack.
 */


/* *********** */
/* Constructor */
/* *********** */

var SWFUpload = function (init_settings) {
	this.initSWFUpload(init_settings);
};

SWFUpload.prototype.initSWFUpload = function (init_settings) {
	// Remove background flicker in IE (read this: http://misterpixel.blogspot.com/2006/09/forensic-analysis-of-ie6.html)
	// This doesn't have anything to do with SWFUpload but can help your UI behave better in IE.
	try {
		document.execCommand('BackgroundImageCache', false, true);
	} catch (ex1) {
	}


	try {
		this.customSettings = {};	// A container where developers can place their own settings associated with this instance.
		this.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(init_settings);
		this.loadFlash();

		this.displayDebugInfo();

	} catch (ex2) {
		this.debug(ex2);
	}
}

/* *************** */
/* Static thingies */
/* *************** */
SWFUpload.instances = {};
SWFUpload.movieCount = 0;
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
};


/* ***************** */
/* Instance Thingies */
/* ***************** */
// init is a private method that ensures that all the object settings are set, getting a default value if one was not assigned.

SWFUpload.prototype.initSettings = function (init_settings) {
	// Upload backend settings
	this.addSetting("upload_url",		 		init_settings.upload_url,		  		"");
	this.addSetting("file_post_name",	 		init_settings.file_post_name,	  		"Filedata");
	this.addSetting("post_params",		 		init_settings.post_params,		  		{});

	// File Settings
	this.addSetting("file_types",			  	init_settings.file_types,				"*.*");
	this.addSetting("file_types_description", 	init_settings.file_types_description, 	"All Files");
	this.addSetting("file_size_limit",		  	init_settings.file_size_limit,			"1024");
	this.addSetting("file_upload_limit",	  	init_settings.file_upload_limit,		"0");
	this.addSetting("file_queue_limit",		  	init_settings.file_queue_limit,			"0");

	// Flash Settings
	this.addSetting("flash_url",		  		init_settings.flash_url,				"swfupload.swf");
	this.addSetting("flash_width",		  		init_settings.flash_width,				"1px");
	this.addSetting("flash_height",		  		init_settings.flash_height,				"1px");
	this.addSetting("flash_color",		  		init_settings.flash_color,				"#FFFFFF");

	// Debug Settings
	this.addSetting("debug_enabled", init_settings.debug,  false);

	// Event Handlers
	this.flashReady_handler         = SWFUpload.flashReady;	// This is a non-overrideable event handler
	this.swfUploadLoaded_handler    = this.retrieveSetting(init_settings.swfupload_loaded_handler,	    SWFUpload.swfUploadLoaded);
	
	this.fileDialogStart_handler	= this.retrieveSetting(init_settings.file_dialog_start_handler,		SWFUpload.fileDialogStart);
	this.fileQueued_handler			= this.retrieveSetting(init_settings.file_queued_handler,			SWFUpload.fileQueued);
	this.fileQueueError_handler		= this.retrieveSetting(init_settings.file_queue_error_handler,		SWFUpload.fileQueueError);
	this.fileDialogComplete_handler	= this.retrieveSetting(init_settings.file_dialog_complete_handler,	SWFUpload.fileDialogComplete);
	
	this.uploadStart_handler		= this.retrieveSetting(init_settings.upload_start_handler,			SWFUpload.uploadStart);
	this.uploadProgress_handler		= this.retrieveSetting(init_settings.upload_progress_handler,		SWFUpload.uploadProgress);
	this.uploadError_handler		= this.retrieveSetting(init_settings.upload_error_handler,			SWFUpload.uploadError);
	this.uploadSuccess_handler		= this.retrieveSetting(init_settings.upload_success_handler,		SWFUpload.uploadSuccess);
	this.uploadComplete_handler		= this.retrieveSetting(init_settings.upload_complete_handler,		SWFUpload.uploadComplete);

	this.debug_handler				= this.retrieveSetting(init_settings.debug_handler,			   		SWFUpload.debug);

	// Other settings
	this.customSettings = this.retrieveSetting(init_settings.custom_settings, {});
};

// loadFlash is a private method that generates the HTML tag for the Flash
// It then adds the flash to the "target" or to the body and stores a
// reference to the flash element in "movieElement".
SWFUpload.prototype.loadFlash = function () {
	var html, target_element, container;

	// Make sure an element with the ID we are going to use doesn't already exist
	if (document.getElementById(this.movieName) !== null) {
		return false;
	}

	// Get the body tag where we will be adding the flash movie
	try {
		target_element = document.getElementsByTagName("body")[0];
		if (typeof(target_element) === "undefined" || target_element === null) {
			this.debug('Could not find the BODY element. SWFUpload failed to load.');
			return false;
		}
	} catch (ex) {
		return false;
	}

	// Append the container and load the flash
	container = document.createElement("div");
	container.style.width = this.getSetting("flash_width");
	container.style.height = this.getSetting("flash_height");

	target_element.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)
};

// Generates the embed/object tags needed to embed the flash in to the document
SWFUpload.prototype.getFlashHTML = function () {
	var html = "";

	// Create Mozilla Embed HTML
	if (navigator.plugins && navigator.mimeTypes && navigator.mimeTypes.length) {
		// Build the basic embed html
		html = '<embed type="application/x-shockwave-flash" src="' + this.getSetting("flash_url") + '" width="' + this.getSetting("flash_width") + '" height="' + this.getSetting("flash_height") + '"';
		html += ' id="' + this.movieName + '" name="' + this.movieName + '" ';
		html += 'bgcolor="' + this.getSetting("flash_color") + '" quality="high" menu="false" flashvars="';

		html += this.getFlashVars();

		html += '" />';

		// Create IE Object HTML
	} else {

		// Build the basic Object tag
		html = '<object id="' + this.movieName + '" classid="clsid:D27CDB6E-AE6D-11cf-96B8-444553540000" width="' + this.getSetting("flash_width") + '" height="' + this.getSetting("flash_height") + '">';
		html += '<param name="movie" value="' + this.getSetting("flash_url") + '">';

		html += '<param name="bgcolor" value="' + this.getSetting("flash_color") + '" />';
		html += '<param name="quality" value="high" />';
		html += '<param name="menu" value="false" />';

		html += '<param name="flashvars" value="' + this.getFlashVars() + '" />';
		html += '</object>';
	}

	return html;
};

// This private method builds the parameter string that will be passed
// to flash.
SWFUpload.prototype.getFlashVars = function () {
	// Build a string from the post param object
	var param_string = this.buildParamString();

	// Build the parameter string
	var html = "";
	html += "movieName=" + encodeURIComponent(this.movieName);
	html += "&uploadURL=" + encodeURIComponent(this.getSetting("upload_url"));
	html += "&params=" + encodeURIComponent(param_string);
	html += "&filePostName=" + encodeURIComponent(this.getSetting("file_post_name"));
	html += "&fileTypes=" + encodeURIComponent(this.getSetting("file_types"));
	html += "&fileTypesDescription=" + encodeURIComponent(this.getSetting("file_types_description"));
	html += "&fileSizeLimit=" + encodeURIComponent(this.getSetting("file_size_limit"));
	html += "&fileUploadLimit=" + encodeURIComponent(this.getSetting("file_upload_limit"));
	html += "&fileQueueLimit=" + encodeURIComponent(this.getSetting("file_queue_limit"));
	html += "&debugEnabled=" + encodeURIComponent(this.getSetting("debug_enabled"));

	return html;
};

SWFUpload.prototype.getMovieElement = function () {
	if (typeof(this.movieElement) === "undefined" || this.movieElement === null) {
		this.movieElement = document.getElementById(this.movieName);

		// Fix IEs "Flash can't callback when in a form" issue (http://www.extremefx.com.ar/blog/fixing-flash-external-interface-inside-form-on-internet-explorer)
		// Removed because Revision 6 always adds the flash to the body (inside a containing div)
		// If you insist on adding the Flash file inside a Form then in IE you have to make you wait until the DOM is ready
		// and run this code to make the form's ID available from the window object so Flash and JavaScript can communicate.
		//if (typeof(window[this.movieName]) === "undefined" || window[this.moveName] !== this.movieElement) {
		//	window[this.movieName] = this.movieElement;
		//}
	}

	return this.movieElement;
};

SWFUpload.prototype.buildParamString = function () {
	var post_params = this.getSetting("post_params");
	var param_string_pairs = [];
	var i, value, name;

	// Retrieve the user defined parameters
	if (typeof(post_params) === "object") {
		for (name in post_params) {
			if (post_params.hasOwnProperty(name)) {
				if (typeof(post_params[name]) === "string") {
					param_string_pairs.push(encodeURIComponent(name) + "=" + encodeURIComponent(post_params[name]));
				}
			}
		}
	}

	return param_string_pairs.join("&");
};

// Saves a setting.	 If the value given is undefined or null then the default_value is used.
SWFUpload.prototype.addSetting = function (name, value, default_value) {
	if (typeof(value) === "undefined" || value === null) {
		this.settings[name] = default_value;
	} else {
		this.settings[name] = value;
	}

	return this.settings[name];
};

// Gets a setting.	Returns empty string if not found.
SWFUpload.prototype.getSetting = function (name) {
	if (typeof(this.settings[name]) === "undefined") {
		return "";
	} else {
		return this.settings[name];
	}
};

// Gets a setting, if the setting is undefined then return the default value
// This does not affect or use the interal setting object.
SWFUpload.prototype.retrieveSetting = function (value, default_value) {
	if (typeof(value) === "undefined" || value === null) {
		return default_value;
	} else {
		return value;
	}
};


// It loops through all the settings and displays
// them in the debug Console.
SWFUpload.prototype.displayDebugInfo = function () {
	var key, debug_message = "";

	debug_message += "----- SWFUPLOAD SETTINGS     ----\nID: " + this.moveName + "\n";

	debug_message += this.outputObject(this.settings);

	debug_message += "----- SWFUPLOAD SETTINGS END ----\n";
	debug_message += "\n";

	this.debug(debug_message);
};
SWFUpload.prototype.outputObject = function (object, prefix) {
	var output = "", key;

	if (typeof(prefix) !== "string") {
		prefix = "";
	}
	if (typeof(object) !== "object") {
		return "";
	}

	for (key in object) {
		if (object.hasOwnProperty(key)) {
			if (typeof(object[key]) === "object") {
				output += (prefix + key + ": { \n" + this.outputObject(object[key], "\t" + prefix) + prefix + "}" + "\n");
			} else {
				output += (prefix + key + ": " + object[key] + "\n");
			}
		}
	}

	return output;
};

/* *****************************
	-- Flash control methods --
	Your UI should use these
	to operate SWFUpload
   ***************************** */

SWFUpload.prototype.selectFile = function () {
	var movie_element = this.getMovieElement();
	if (movie_element !== null && typeof(movie_element.SelectFile) === "function") {
		try {
			movie_element.SelectFile();
		}
		catch (ex) {
			this.debug("Could not call SelectFile: " + ex);
		}
	} else {
		this.debug("Could not find Flash element");
	}

};

SWFUpload.prototype.selectFiles = function () {
	var movie_element = this.getMovieElement();
	if (movie_element !== null && typeof(movie_element.SelectFiles) === "function") {
		try {
			movie_element.SelectFiles();
		}
		catch (ex) {
			this.debug("Could not call SelectFiles: " + ex);
		}
	} else {
		this.debug("Could not find Flash element");
	}

};


/* Start the upload.  If a file_id is specified that file is uploaded. Otherwise the first
 * file in the queue is uploaded.  If no files are in the queue then nothing happens.
 * This call uses setTimeout since Flash will be calling back in to JavaScript
 */
SWFUpload.prototype.startUpload = function (file_id) {
	var self = this;
	var movie_element = this.getMovieElement();
	if (movie_element !== null && typeof(movie_element.StartUpload) === "function") {
		setTimeout(
			function () {
				try {
					movie_element.StartUpload(file_id);
				}
				catch (ex) {
					self.debug("Could not call StartUpload: " + ex);
				}
			}, 0
		);
	} else {
		this.debug("Could not find Flash element");
	}

};

/* Cancels a the file upload.  You must specify a file_id */
SWFUpload.prototype.cancelUpload = function (file_id) {
	var movie_element = this.getMovieElement();
	if (movie_element !== null && typeof(movie_element.CancelUpload) === "function") {
		try {
			movie_element.CancelUpload(file_id);
		}
		catch (ex) {
			this.debug("Could not call CancelUpload: " + ex);
		}
	} else {
		this.debug("Could not find Flash element");
	}

};

// Stops the current upload.  The file is re-queued.  If nothing is currently uploading then nothing happens.
SWFUpload.prototype.stopUpload = function () {
	var movie_element = this.getMovieElement();
	if (movie_element !== null && typeof(movie_element.StopUpload) === "function") {
		try {
			movie_element.StopUpload();
		}
		catch (ex) {
			this.debug("Could not call StopUpload: " + ex);
		}
	} else {
		this.debug("Could not find Flash element");
	}

};

/* ************************
 * Settings methods
 *   These methods change the settings inside SWFUpload
 *   They shouldn't need to be called in a setTimeout since they
 *   should not call back from Flash to JavaScript (except perhaps in a Debug call)
 *   and some need to return data so setTimeout won't work.
 */

/* Gets the file statistics object.	 It looks like this (where n = number):
	{
		files_queued: n,
		complete_uploads: n,
		upload_errors: n,
		uploads_cancelled: n,
		queue_errors: n
	}
*/
SWFUpload.prototype.getStats = function () {
	var movie_element = this.getMovieElement();
	if (movie_element !== null && typeof(movie_element.GetStats) === "function") {
		try {
			return movie_element.GetStats();
		}
		catch (ex) {
			this.debug("Could not call GetStats");
		}
	} else {
		this.debug("Could not find Flash element");
	}
};
SWFUpload.prototype.setStats = function (stats_object) {
	var movie_element = this.getMovieElement();
	if (movie_element !== null && typeof(movie_element.SetStats) === "function") {
		try {
			movie_element.SetStats(stats_object);
		}
		catch (ex) {
			this.debug("Could not call SetStats");
		}
	} else {
		this.debug("Could not find Flash element");
	}
};

SWFUpload.prototype.setCredentials = function(name, password) {
	var movie_element = this.getMovieElement();
	if (movie_element !== null && typeof(movie_element.SetCredentials) === "function") {
		try {
			return movie_element.SetCredentials(name, password);
		}
		catch (ex) {
			this.debug("Could not call SetCredentials");
		}
	} else {
		this.debug("Could not find Flash element");
	}
};

SWFUpload.prototype.getFile = function (file_id) {
	var movie_element = this.getMovieElement();
			if (typeof(file_id) === "number") {
				if (movie_element !== null && typeof(movie_element.GetFileByIndex) === "function") {
					try {
						return movie_element.GetFileByIndex(file_id);
					}
					catch (ex) {
						this.debug("Could not call GetFileByIndex");
					}
				} else {
					this.debug("Could not find Flash element");
				}
			} else {
				if (movie_element !== null && typeof(movie_element.GetFile) === "function") {
					try {
						return movie_element.GetFile(file_id);
					}
					catch (ex) {
						this.debug("Could not call GetFile");
					}
				} else {
					this.debug("Could not find Flash element");
				}
			}
};

SWFUpload.prototype.addFileParam = function (file_id, name, value) {
	var movie_element = this.getMovieElement();
	if (movie_element !== null && typeof(movie_element.AddFileParam) === "function") {
		try {
			return movie_element.AddFileParam(file_id, name, value);
		}
		catch (ex) {
			this.debug("Could not call AddFileParam");
		}
	} else {
		this.debug("Could not find Flash element");
	}
};

SWFUpload.prototype.removeFileParam = function (file_id, name) {
	var movie_element = this.getMovieElement();
	if (movie_element !== null && typeof(movie_element.RemoveFileParam) === "function") {
		try {
			return movie_element.RemoveFileParam(file_id, name);
		}
		catch (ex) {
			this.debug("Could not call AddFileParam");
		}
	} else {
		this.debug("Could not find Flash element");
	}

};

SWFUpload.prototype.setUploadURL = function (url) {
	var movie_element = this.getMovieElement();
	if (movie_element !== null && typeof(movie_element.SetUploadURL) === "function") {
		try {
			this.addSetting("upload_url", url);
			movie_element.SetUploadURL(this.getSetting("upload_url"));
		}
		catch (ex) {
			this.debug("Could not call SetUploadURL");
		}
	} else {
		this.debug("Could not find Flash element in setUploadURL");
	}
};

SWFUpload.prototype.setPostParams = function (param_object) {
	var movie_element = this.getMovieElement();
	if (movie_element !== null && typeof(movie_element.SetPostParams) === "function") {
		try {
			this.addSetting("post_params", param_object);
			movie_element.SetPostParams(this.getSetting("post_params"));
		}
		catch (ex) {
			this.debug("Could not call SetPostParams");
		}
	} else {
		this.debug("Could not find Flash element in SetPostParams");
	}
};

SWFUpload.prototype.setFileTypes = function (types, description) {
	var movie_element = this.getMovieElement();
	if (movie_element !== null && typeof(movie_element.SetFileTypes) === "function") {
		try {
			this.addSetting("file_types", types);
			this.addSetting("file_types_description", description);
			movie_element.SetFileTypes(this.getSetting("file_types"), this.getSetting("file_types_description"));
		}
		catch (ex) {
			this.debug("Could not call SetFileTypes");
		}
	} else {
		this.debug("Could not find Flash element in SetFileTypes");
	}
};

SWFUpload.prototype.setFileSizeLimit = function (file_size_limit) {
	var movie_element = this.getMovieElement();
	if (movie_element !== null && typeof(movie_element.SetFileSizeLimit) === "function") {
		try {
			this.addSetting("file_size_limit", file_size_limit);
			movie_element.SetFileSizeLimit(this.getSetting("file_size_limit"));
		}
		catch (ex) {
			this.debug("Could not call SetFileSizeLimit");
		}
	} else {
		this.debug("Could not find Flash element in SetFileSizeLimit");
	}
};

SWFUpload.prototype.setFileUploadLimit = function (file_upload_limit) {
	var movie_element = this.getMovieElement();
	if (movie_element !== null && typeof(movie_element.SetFileUploadLimit) === "function") {
		try {
			this.addSetting("file_upload_limit", file_upload_limit);
			movie_element.SetFileUploadLimit(this.getSetting("file_upload_limit"));
		}
		catch (ex) {
			this.debug("Could not call SetFileUploadLimit");
		}
	} else {
		this.debug("Could not find Flash element in SetFileUploadLimit");
	}
};

SWFUpload.prototype.setFileQueueLimit = function (file_queue_limit) {
	var movie_element = this.getMovieElement();
	if (movie_element !== null && typeof(movie_element.SetFileQueueLimit) === "function") {
		try {
			this.addSetting("file_queue_limit", file_queue_limit);
			movie_element.SetFileQueueLimit(this.getSetting("file_queue_limit"));
		}
		catch (ex) {
			this.debug("Could not call SetFileQueueLimit");
		}
	} else {
		this.debug("Could not find Flash element in SetFileQueueLimit");
	}
};

SWFUpload.prototype.setFilePostName = function (file_post_name) {
	var movie_element = this.getMovieElement();
	if (movie_element !== null && typeof(movie_element.SetFilePostName) === "function") {
		try {
			this.addSetting("file_post_name", file_post_name);
			movie_element.SetFilePostName(this.getSetting("file_post_name"));
		}
		catch (ex) {
			this.debug("Could not call SetFilePostName");
		}
	} else {
		this.debug("Could not find Flash element in SetFilePostName");
	}
};

SWFUpload.prototype.setDebugEnabled = function (debug_enabled) {
	var movie_element = this.getMovieElement();
	if (movie_element !== null && typeof(movie_element.SetDebugEnabled) === "function") {
		try {
			this.addSetting("debug_enabled", debug_enabled);
			movie_element.SetDebugEnabled(this.getSetting("debug_enabled"));
		}
		catch (ex) {
			this.debug("Could not call SetDebugEnabled");
		}
	} else {
		this.debug("Could not find Flash element in SetDebugEnabled");
	}
};

/* *******************************
	Internal Event Callers
	Don't override these! These event callers ensure that your custom event handlers
	are called safely and in order.
******************************* */

/* This is the callback method that the Flash movie will call when it has been loaded and is ready to go.
   Calling this or showUI() "manually" will bypass the Flash Detection built in to SWFUpload.
   Use a ui_function setting if you want to control the UI loading after the flash has loaded.
*/
SWFUpload.prototype.flashReady = function () {
	// Check that the movie element is loaded correctly with its ExternalInterface methods defined
	var movie_element = this.getMovieElement();
	if (movie_element === null || typeof(movie_element.StartUpload) !== "function") {
		this.debug("ExternalInterface methods failed to initialize.");
		return;
	}
	
	var self = this;
	if (typeof(self.flashReady_handler) === "function") {
		this.eventQueue[this.eventQueue.length] = function() { self.flashReady_handler(); };
		setTimeout(function () { self.executeNextEvent();}, 0);
	} else {
		this.debug("flashReady_handler event not defined");
	}
};

/*
	Event Queue.  Rather can call events directly from Flash they events are
	are placed in a queue and then executed.  This ensures that each event is
	executed in the order it was called which is not guarenteed when calling
	setTimeout.  Out of order events was especially problematic in Safari.
*/
SWFUpload.prototype.executeNextEvent = function () {
	var  f = this.eventQueue.shift();
	if (typeof(f) === "function") {
		f();
	}
}

/* This is a chance to do something before the browse window opens */
SWFUpload.prototype.fileDialogStart = function () {
	var self = this;
	if (typeof(self.fileDialogStart_handler) === "function") {
		this.eventQueue[this.eventQueue.length] = function() { self.fileDialogStart_handler(); };
		setTimeout(function () { self.executeNextEvent();}, 0);
	} else {
		this.debug("fileDialogStart event not defined");
	}
};


/* Called when a file is successfully added to the queue. */
SWFUpload.prototype.fileQueued = function (file) {
	var self = this;
	if (typeof(self.fileQueued_handler) === "function") {
		this.eventQueue[this.eventQueue.length] = function() { self.fileQueued_handler(file); };
		setTimeout(function () { self.executeNextEvent();}, 0);
	} else {
		this.debug("fileQueued event not defined");
	}
};


/* Handle errors that occur when an attempt to queue a file fails. */
SWFUpload.prototype.fileQueueError = function (file, error_code, message) {
	var self = this;
	if (typeof(self.fileQueueError_handler) === "function") {
		this.eventQueue[this.eventQueue.length] = function() {  self.fileQueueError_handler(file, error_code, message); };
		setTimeout(function () { self.executeNextEvent();}, 0);
	} else {
		this.debug("fileQueueError event not defined");
	}
};

/* 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 (num_files_selected) {
	var self = this;
	if (typeof(self.fileDialogComplete_handler) === "function") {
		this.eventQueue[this.eventQueue.length] = function() { self.fileDialogComplete_handler(num_files_selected); };
		setTimeout(function () { self.executeNextEvent();}, 0);
	} else {
		this.debug("fileDialogComplete event not defined");
	}
};

/* Gets called when a file upload is about to be started.  Return true to continue the upload. Return false to stop the upload.
	If you return false then uploadError and uploadComplete are called (like normal).
	
	This is a good place to do any file validation you need.
	*/
SWFUpload.prototype.uploadStart = function (file) {
	var self = this;
	if (typeof(self.fileDialogComplete_handler) === "function") {
		this.eventQueue[this.eventQueue.length] = function() { self.returnUploadStart(self.uploadStart_handler(file)); };
		setTimeout(function () { self.executeNextEvent();}, 0);
	} else {
		this.debug("uploadStart event not defined");
	}
};

/* Note: Internal use only.  This function returns the result of uploadStart to
	flash.  Since returning values in the normal way can result in Flash/JS circular
	call issues we split up the call in a Timeout.  This is transparent from the API
	point of view.
*/
SWFUpload.prototype.returnUploadStart = function (return_value) {
	var movie_element = this.getMovieElement();
	if (movie_element !== null && typeof(movie_element.ReturnUploadStart) === "function") {
		try {
			movie_element.ReturnUploadStart(return_value);
		}
		catch (ex) {
			this.debug("Could not call ReturnUploadStart");
		}
	} else {
		this.debug("Could not find Flash element in returnUploadStart");
	}
};



/* Called during upload as the file progresses. Use this event to update your UI. */
SWFUpload.prototype.uploadProgress = function (file, bytes_complete, bytes_total) {
	var self = this;
	if (typeof(self.uploadProgress_handler) === "function") {
		this.eventQueue[this.eventQueue.length] = function() { self.uploadProgress_handler(file, bytes_complete, bytes_total); };
		setTimeout(function () { self.executeNextEvent();}, 0);
	} else {
		this.debug("uploadProgress event not defined");
	}
};

/* Called when an error occurs during an upload. Use error_code and the SWFUpload.UPLOAD_ERROR constants to determine
   which error occurred. The uploadComplete event is called after an error code indicating that the next file is
   ready for upload.  For files cancelled out of order the uploadComplete event will not be called. */
SWFUpload.prototype.uploadError = function (file, error_code, message) {
	var self = this;
	if (typeof(this.uploadError_handler) === "function") {
		this.eventQueue[this.eventQueue.length] = function() { self.uploadError_handler(file, error_code, message); };
		setTimeout(function () { self.executeNextEvent();}, 0);
	} else {
		this.debug("uploadError event not defined");
	}
};

/* This gets called when a file finishes uploading and the server-side upload script has completed and returned a 200
status code. Any text returned by the server is available in server_data.
**NOTE: The upload script MUST return some text or the uploadSuccess and uploadComplete events will not fire and the
upload will become 'stuck'. */
SWFUpload.prototype.uploadSuccess = function (file, server_data) {
	var self = this;
	if (typeof(self.uploadSuccess_handler) === "function") {
		this.eventQueue[this.eventQueue.length] = function() { self.uploadSuccess_handler(file, server_data); };
		setTimeout(function () { self.executeNextEvent();}, 0);
	} else {
		this.debug("uploadSuccess event not defined");
	}
};

/* uploadComplete is called when the file is uploaded or an error occurred and SWFUpload is ready to make the next upload.
   If you want the next upload to start to automatically you can call startUpload() from this event. */
SWFUpload.prototype.uploadComplete = function (file) {
	var self = this;
	if (typeof(self.uploadComplete_handler) === "function") {
		this.eventQueue[this.eventQueue.length] = function() { self.uploadComplete_handler(file); };
		setTimeout(function () { self.executeNextEvent();}, 0);
	} else {
		this.debug("uploadComplete event not defined");
	}
};

/* 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) {
	var self = this;
	if (typeof(self.debug_handler) === "function") {
		this.eventQueue[this.eventQueue.length] = function() { self.debug_handler(message); };
		setTimeout(function () { self.executeNextEvent();}, 0);
	} else {
		this.eventQueue[this.eventQueue.length] = function() { self.debugMessage(message); };
		setTimeout(function () { self.executeNextEvent();}, 0);
	}
};


/* **********************************
	Default Event Handlers.
	These event handlers are used by default if an overriding handler is
	not defined in the SWFUpload settings object.
	
	JS Note: even though these are defined on the SWFUpload object (rather than the prototype) they
	are attached (read: copied) to a SWFUpload instance and 'this' is given the proper context.
   ********************************** */

/* This is a special event handler that has no override in the settings.  Flash calls this when it has
   been loaded by the browser and is ready for interaction.  You should not override it.  If you need
   to do something with SWFUpload has loaded then use the swfupload_loaded_handler setting.
*/
SWFUpload.flashReady = function () {
	try {
		this.debug("Flash called back and is ready.");

		if (typeof(this.swfUploadLoaded_handler) === "function") {
			this.swfUploadLoaded_handler();
		}
	} catch (ex) {
		this.debug(ex);
	}
};

/* This is a chance to something immediately after SWFUpload has loaded.
   Like, hide the default/degraded upload form and display the SWFUpload form. */
SWFUpload.swfUploadLoaded = function () {
};

/* This is a chance to do something before the browse window opens */
SWFUpload.fileDialogStart = function () {
};


/* Called when a file is successfully added to the queue. */
SWFUpload.fileQueued = function (file) {
};


/* Handle errors that occur when an attempt to queue a file fails. */
SWFUpload.fileQueueError = function (file, error_code, message) {
	try {
		switch (error_code) {
		case SWFUpload.QUEUE_ERROR.FILE_EXCEEDS_SIZE_LIMIT:
			this.debug("Error Code: File too big, File name: " + file.name + ", File size: " + file.size + ", Message: " + message);
			break;
		case SWFUpload.QUEUE_ERROR.ZERO_BYTE_FILE:
			this.debug("Error Code: Zero Byte File, File name: " + file.name + ", File size: " + file.size + ", Message: " + message);
			break;
		case SWFUpload.QUEUE_ERROR.QUEUE_LIMIT_EXCEEDED:
			this.debug("Error Code: Upload limit reached, File name: " + file.name + ", File size: " + file.size + ", Message: " + message);
			break;
		case SWFUpload.QUEUE_ERROR.INVALID_FILETYPE:
			this.debug("Error Code: File extension is not allowed, Message: " + message);
			break;
		default:
			this.debug("Error Code: Unhandled error occured. Errorcode: " + error_code);
		}
	} catch (ex) {
		this.debug(ex);
	}
};

/* 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.fileDialogComplete = function (num_files_selected) {
};

/* Gets called when a file upload is about to be started.  Return true to continue the upload. Return false to stop the upload.
	If you return false then the uploadError callback is called and then uploadComplete (like normal).
	
	This is a good place to do any file validation you need.
	
	This is the only function that cannot be called on a setTimeout because it must return a value to Flash.
	You SHOULD NOT make any calls in to Flash (e.i, changing settings, getting stats, etc).  Flash Player bugs prevent
	calls in to Flash from working reliably.
*/
SWFUpload.uploadStart = function (file) {
	return true;
};

// Called during upload as the file progresses
SWFUpload.uploadProgress = function (file, bytes_complete, bytes_total) {
	this.debug("File Progress: " + file.id + ", Bytes: " + bytes_complete + ". Total: " + bytes_total);
};

/* This gets called when a file finishes uploading and the upload script has completed and returned a 200 status code.	Any text returned by the
server is available in server_data.	 The upload script must return some text or uploadSuccess will not fire (neither will uploadComplete). */
SWFUpload.uploadSuccess = function (file, server_data) {
};

/* This is called last.	 The file is uploaded or an error occurred and SWFUpload is ready to make the next upload.
	If you want to automatically start the next file just call startUpload from here.
*/
SWFUpload.uploadComplete = function (file) {
};

// Called by SWFUpload JavaScript and Flash functions when debug is enabled.
// Override this method in your settings to call your own debug message handler
SWFUpload.debug = function (message) {
	if (this.getSetting("debug_enabled")) {
		this.debugMessage(message);
	}
};

/* Called when an upload occurs during upload.  For HTTP errors 'message' will contain the HTTP STATUS CODE */
SWFUpload.uploadError = function (file, error_code, message) {
	try {
		switch (errcode) {
		case SWFUpload.UPLOAD_ERROR.SPECIFIED_FILE_ID_NOT_FOUND:
			this.debug("Error Code: File ID specified for upload was not found, Message: " + msg);
			break;
		case SWFUpload.UPLOAD_ERROR.HTTP_ERROR:
			this.debug("Error Code: HTTP Error, File name: " + file.name + ", Message: " + msg);
			break;
		case SWFUpload.UPLOAD_ERROR.MISSING_UPLOAD_URL:
			this.debug("Error Code: No backend file, File name: " + file.name + ", Message: " + msg);
			break;
		case SWFUpload.UPLOAD_ERROR.IO_ERROR:
			this.debug("Error Code: IO Error, File name: " + file.name + ", Message: " + msg);
			break;
		case SWFUpload.UPLOAD_ERROR.SECURITY_ERROR:
			this.debug("Error Code: Security Error, File name: " + file.name + ", Message: " + msg);
			break;
		case SWFUpload.UPLOAD_ERROR.UPLOAD_LIMIT_EXCEEDED:
			this.debug("Error Code: Upload limit reached, File name: " + file.name + ", File size: " + file.size + ", Message: " + msg);
			break;
		case SWFUpload.UPLOAD_ERROR.UPLOAD_FAILED:
			this.debug("Error Code: Upload Initialization exception, File name: " + file.name + ", File size: " + file.size + ", Message: " + msg);
			break;
		case SWFUpload.UPLOAD_ERROR.FILE_VALIDATION_FAILED:
			this.debug("Error Code: uploadStart callback returned false, File name: " + file.name + ", File size: " + file.size + ", Message: " + msg);
			break;
		case SWFUpload.UPLOAD_ERROR.FILE_CANCELLED:
			this.debug("Error Code: The file upload was cancelled, File name: " + file.name + ", File size: " + file.size + ", Message: " + msg);
			break;
		case SWFUpload.UPLOAD_ERROR.UPLOAD_STOPPED:
			this.debug("Error Code: The file upload was stopped, File name: " + file.name + ", File size: " + file.size + ", Message: " + msg);
			break;
		default:
			this.debug("Error Code: Unhandled error occured. Errorcode: " + errcode);
		}
	} catch (ex) {
		this.debug(ex);
	}
};



/* **********************************
	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.
	
	You can override this console (to use FireBug's console for instance) by setting the debug event method to your own function
	that handles the debug message
   ********************************** */
SWFUpload.prototype.debugMessage = function (message) {
	var exception_message, exception_values;

	if (typeof(message) === "object" && typeof(message.name) === "string" && typeof(message.message) === "string") {
		exception_message = "";
		exception_values = [];
		for (var key in message) {
			exception_values.push(key + ": " + message[key]);
		}
		exception_message = exception_values.join("\n");
		exception_values = exception_message.split("\n");
		exception_message = "EXCEPTION: " + exception_values.join("\nEXCEPTION: ");
		SWFUpload.Console.writeLine(exception_message);
	} 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);
	}
};

/* mirrored from http://api.recaptcha.net/js/recaptcha_ajax.js */

/* Copyright (C) 2007 reCAPTCHA. Please contact us if you are thinking of modifying & hosting this file. */

var RecaptchaTemplates = {VertHtml:'<table id="recaptcha_table" class="recaptchatable" >\n<tr>\n<td colspan="6" class=\'recaptcha_r1_c1\'></td>\n</tr>\n<tr>\n<td class=\'recaptcha_r2_c1\'></td>\n<td colspan="4" class=\'recaptcha_image_cell\'><div id="recaptcha_image"></div></td>\n<td class=\'recaptcha_r2_c2\'></td>\n</tr>\n<tr>\n<td rowspan="6" class=\'recaptcha_r3_c1\'></td>\n<td colspan="4" class=\'recaptcha_r3_c2\'></td>\n<td rowspan="6" class=\'recaptcha_r3_c3\'></td>\n</tr>\n<tr>\n<td rowspan="3" class=\'recaptcha_r4_c1\' height="49">\n<div class="recaptcha_input_area">\n<label for="recaptcha_response_field" class="recaptcha_input_area_text"><span id="recaptcha_instructions_image" class="recaptcha_only_if_image recaptcha_only_if_no_incorrect_sol"></span><span id="recaptcha_instructions_audio" class="recaptcha_only_if_no_incorrect_sol recaptcha_only_if_audio"></span><span id="recaptcha_instructions_error" class="recaptcha_only_if_incorrect_sol"></span></label><br/>\n<input name="recaptcha_response_field" id="recaptcha_response_field" type="text" />\n</div>\n</td>\n<td rowspan="4" class=\'recaptcha_r4_c2\'></td>\n<td><a id=\'recaptcha_reload_btn\' tabindex=\'-1\'><img id=\'recaptcha_reload\' width="25" height="17" /></a></td>\n<td rowspan="4" class=\'recaptcha_r4_c4\'></td>\n</tr>\n<tr>\n<td><a id=\'recaptcha_switch_audio_btn\' tabindex=\'-1\' class="recaptcha_only_if_image"><img id=\'recaptcha_switch_audio\' width="25" height="16" alt="" /></a><a id=\'recaptcha_switch_img_btn\' tabindex=\'-1\' class="recaptcha_only_if_audio"><img id=\'recaptcha_switch_img\' width="25" height="16" alt=""/></a></td>\n</tr>\n<tr>\n<td><a id=\'recaptcha_whatsthis_btn\' tabindex=\'-1\'><img id=\'recaptcha_whatsthis\' width="25" height="16" /></a></td>\n</tr>\n<tr>\n<td class=\'recaptcha_r7_c1\'></td>\n<td class=\'recaptcha_r8_c1\'></td>\n</tr>\n</table>\n',VertCss:'.recaptchatable td img {\n/* see http://developer.mozilla.org/en/docs/Images%2C_Tables%2C_and_Mysterious_Gaps */\ndisplay: block;\n}\n.recaptchatable .recaptcha_r1_c1 { background: url(IMGROOT/sprite.png) -0px -63px no-repeat; width: 318px; height: 9px; }\n.recaptchatable .recaptcha_r2_c1 { background: url(IMGROOT/sprite.png) -18px -0px no-repeat; width: 9px; height: 57px; }\n.recaptchatable .recaptcha_r2_c2 { background: url(IMGROOT/sprite.png) -27px -0px no-repeat; width: 9px; height: 57px; }\n.recaptchatable .recaptcha_r3_c1 { background: url(IMGROOT/sprite.png) -0px -0px no-repeat; width: 9px; height: 63px; }\n.recaptchatable .recaptcha_r3_c2 { background: url(IMGROOT/sprite.png) -18px -57px no-repeat; width: 300px; height: 6px; }\n.recaptchatable .recaptcha_r3_c3 { background: url(IMGROOT/sprite.png) -9px -0px no-repeat; width: 9px; height: 63px; }\n.recaptchatable .recaptcha_r4_c1 { background: url(IMGROOT/sprite.png) -43px -0px no-repeat; width: 171px; height: 49px; }\n.recaptchatable .recaptcha_r4_c2 { background: url(IMGROOT/sprite.png) -36px -0px no-repeat; width: 7px; height: 57px; }\n.recaptchatable .recaptcha_r4_c4 { background: url(IMGROOT/sprite.png) -214px -0px no-repeat; width: 97px; height: 57px; }\n.recaptchatable .recaptcha_r7_c1 { background: url(IMGROOT/sprite.png) -43px -49px no-repeat; width: 171px; height: 8px; }\n.recaptchatable .recaptcha_r8_c1 { background: url(IMGROOT/sprite.png) -43px -49px no-repeat; width: 25px; height: 8px; }\n.recaptchatable .recaptcha_image_cell center img { height:57px;}\n.recaptchatable .recaptcha_image_cell center { height:57px;}\n.recaptchatable .recaptcha_image_cell {\nbackground-color:white; height:57px;\n}\n/* some people break their style sheet, we need to clean up after them */\n#recaptcha_area, #recaptcha_table {\nwidth: 318px !important;\n}\n.recaptchatable, #recaptcha_area tr, #recaptcha_area td, #recaptcha_area th {\nmargin:0px !important;\nborder:0px !important;\npadding:0px !important;\nborder-collapse: collapse !important;\nvertical-align: middle !important;\n}\n.recaptchatable * {\nmargin:0px;\npadding:0px;\nborder:0px;\nfont-family:helvetica,sans-serif;\nfont-size:8pt;\ncolor:black;\nposition:static;\ntop:auto;\nleft:auto;\nright:auto;\nbottom:auto;\ntext-align:left !important;\n}\n.recaptchatable #recaptcha_image {\nmargin:auto;\n}\n.recaptchatable img {\nborder:0px !important;\nmargin:0px !important;\npadding:0px !important;\n}\n.recaptchatable a, .recaptchatable a:hover {\n-moz-outline:none;\nborder:0px !important;\npadding:0px !important;\ntext-decoration:none;\ncolor:blue;\nbackground:none !important;\nfont-weight: normal;\n}\n.recaptcha_input_area {\nposition:relative !important;\nwidth:146px !important;\nheight:45px !important;\nmargin-left:20px !important;\nmargin-right:5px !important;\nmargin-top:4px !important;\nbackground:none !important;\n}\n.recaptchatable label.recaptcha_input_area_text {\nmargin:0px !important;  \npadding:0px !important;\nposition:static !important;\ntop:auto !important;\nleft:auto !important;\nright:auto !important;\nbottom:auto !important;\nbackground:none !important;\nheight:auto !important;\nwidth:auto !important;\n}\n.recaptcha_theme_red label.recaptcha_input_area_text,\n.recaptcha_theme_white label.recaptcha_input_area_text {\ncolor:black !important;\n}\n.recaptcha_theme_blackglass label.recaptcha_input_area_text {\ncolor:white !important;\n}\n.recaptchatable #recaptcha_response_field  {\nwidth:145px !important;\nposition:absolute !important;\nbottom:7px !important;\npadding:0px !important;\nmargin:0px !important;\nfont-size:10pt;\n}\n.recaptcha_theme_blackglass #recaptcha_response_field,\n.recaptcha_theme_white #recaptcha_response_field {\nborder: 1px solid gray;\n}\n.recaptcha_theme_red #recaptcha_response_field {\nborder:1px solid #cca940;\n}\n.recaptcha_audio_cant_hear_link {\nfont-size:7pt;\ncolor:black;\n}\n.recaptchatable {\nline-height:1em;\n}\n#recaptcha_instructions_error {\ncolor:red !important;\n}\n',CleanHtml:'<table id="recaptcha_table" class="recaptchatable">\n<tr height="73">\n<td class=\'recaptcha_image_cell\' width="302"><center><div id="recaptcha_image"></div></center></td>\n<td style="padding: 10px 7px 7px 7px;">\n<a id=\'recaptcha_reload_btn\' tabindex=\'-1\'><img id=\'recaptcha_reload\' width="25" height="18" alt="" /></a>\n<a id=\'recaptcha_switch_audio_btn\' tabindex=\'-1\' class="recaptcha_only_if_image"><img id=\'recaptcha_switch_audio\' width="25" height="15" alt="" /></a><a id=\'recaptcha_switch_img_btn\' tabindex=\'-1\' class="recaptcha_only_if_audio"><img id=\'recaptcha_switch_img\' width="25" height="15" alt=""/></a>\n<a id=\'recaptcha_whatsthis_btn\' tabindex=\'-1\'><img id=\'recaptcha_whatsthis\' width="25" height="16" /></a>\n</td>\n<td style="padding: 18px 7px 18px 7px;">\n<img id=\'recaptcha_logo\' alt="" width="71" height="36" />\n</td>\n</tr>\n<tr>\n<td style="padding-left: 7px;">\n<div class="recaptcha_input_area" style="padding-top: 2px; padding-bottom: 7px;">\n<input style="border: 1px solid #3c3c3c; width: 302px;" name="recaptcha_response_field" id="recaptcha_response_field" type="text" />\n</div>\n</td>\n<td></td>\n<td style="padding: 4px 7px 12px 7px;">\n<img id="recaptcha_tagline" width="71" height="17" />\n</td>\n</tr>\n</table>\n',CleanCss : '.recaptchatable td img {\ndisplay: block;\n}\n.recaptchatable .recaptcha_image_cell center img { height:57px;}\n.recaptchatable .recaptcha_image_cell center { height:57px;}\n.recaptchatable .recaptcha_image_cell {\nbackground-color:white; height:57px; \npadding: 7px !important;\n}\n.recaptchatable, #recaptcha_area tr, #recaptcha_area td, #recaptcha_area th {\nmargin:0px !important;\nborder:0px !important;\nborder-collapse: collapse !important;\nvertical-align: middle !important;\n}\n.recaptchatable * {\nmargin:0px;\npadding:0px;\nborder:0px;\ncolor:black;\nposition:static;\ntop:auto;\nleft:auto;\nright:auto;\nbottom:auto;\ntext-align:left !important;\n}\n.recaptchatable #recaptcha_image {\nmargin:auto;\nborder: 1px solid #dfdfdf !important;\n}\n.recaptchatable a img {\nborder:0px;\n}\n.recaptchatable a, .recaptchatable a:hover {\n-moz-outline:none;\nborder:0px !important;\npadding:0px !important;\ntext-decoration:none;\ncolor:blue;\nbackground:none !important;\nfont-weight: normal;\n}\n.recaptcha_input_area {\nposition:relative !important;\nbackground:none !important;\n}\n.recaptchatable label.recaptcha_input_area_text {\nborder:1px solid #dfdfdf !important;\nmargin:0px !important;  \npadding:0px !important;\nposition:static !important;\ntop:auto !important;\nleft:auto !important;\nright:auto !important;\nbottom:auto !important;\n}\n.recaptcha_theme_red label.recaptcha_input_area_text,\n.recaptcha_theme_white label.recaptcha_input_area_text {\ncolor:black !important;\n}\n.recaptcha_theme_blackglass label.recaptcha_input_area_text {\ncolor:white !important;\n}\n.recaptchatable #recaptcha_response_field  {\nfont-size:11pt;\n}\n.recaptcha_theme_blackglass #recaptcha_response_field,\n.recaptcha_theme_white #recaptcha_response_field {\nborder: 1px solid gray;\n}\n.recaptcha_theme_red #recaptcha_response_field {\nborder:1px solid #cca940;\n}\n.recaptcha_audio_cant_hear_link {\nfont-size:7pt;\ncolor:black;\n}\n.recaptchatable {\nline-height:1em;\nborder: 1px solid #dfdfdf !important;\n}\n.recaptcha_error_text {\ncolor:red;\n}\n'};
var RecaptchaStr_en = {
visual_challenge : "Get a visual challenge",
audio_challenge : "Get an audio challenge",
refresh_btn : "Get a new challenge",
instructions_visual : "Type the two words:",
instructions_audio : "Type the eight numbers:",
help_btn : "Help",
cant_hear_this : "Can't hear the sound?",
incorrect_try_again : "Incorrect. Try again."
};
var RecaptchaStr_de = {
visual_challenge : "Visuelle Aufgabe generieren",
audio_challenge : "Audio-Aufgabe generieren",
refresh_btn : "Neue Aufgabe generieren",
instructions_visual : "Gib die 2 W\u00f6rter ein:",
instructions_audio : "Gib die 8 Ziffern ein:",
help_btn : "Hilfe",
cant_hear_this : "Kannst du nichts h\u00f6ren?",
incorrect_try_again: "Falsch. Nochmals versuchen!"
};
var RecaptchaStr_es = {
visual_challenge : "Obt\u00e9n un reto visual",
audio_challenge : "Obt\u00e9n un reto audible",
refresh_btn : "Obt\u00e9n un nuevo reto",
instructions_visual : "Escribe las 2 palabras:",
instructions_audio : "Escribe los 8 n\u00fameros:",
help_btn : "Ayuda",
cant_hear_this : "\u00bfNo puedes o\u00edrel audio?",
incorrect_try_again: "Incorrecto. Otro intento."
};
var RecaptchaStr_fr = {
visual_challenge : "D\u00e9fi visuel",
audio_challenge : "D\u00e9fi audio",
refresh_btn : "Nouveau d\u00e9fi",
instructions_visual : "Entrez les deux mots:",
instructions_audio : "Entrez les huit chiffres:",
help_btn : "Aide",
cant_hear_this : "Vous n'entendez pas de son?",
incorrect_try_again: "Incorrect."
};
var RecaptchaStr_nl = {
visual_challenge : "Test me via een afbeelding",
audio_challenge : "Test me via een geluidsfragment",
refresh_btn : "Nieuwe uitdaging",
instructions_visual : "Type de twee woorden:",
instructions_audio : "Type de acht cijfers:",
help_btn : "Help",
cant_hear_this : "Kun je het geluid niet horen?",
incorrect_try_again: "Foute invoer."
};
var RecaptchaStr_pt = {
visual_challenge : "Obter um desafio visual",
audio_challenge : "Obter um desafio sonoro",
refresh_btn : "Obter um novo desafio",
instructions_visual : "Escreva as 2 palavras:",
instructions_audio : "Escreva os 8 numeros:",
help_btn : "Ajuda",
cant_hear_this : "N\u00e3o consegue ouvir o som?",
incorrect_try_again: "Incorrecto. Tenta outra vez."
};
var RecaptchaStr_ru = {
visual_challenge : "\u0417\u0430\u0433\u0440\u0443\u0437\u0438\u0442\u044c \u0432\u0438\u0437\u0443\u0430\u043b\u044c\u043d\u0443\u044e \u0437\u0430\u0434\u0430\u0447\u0443",
audio_challenge : "\u0417\u0430\u0433\u0440\u0443\u0437\u0438\u0442\u044c \u0437\u0432\u0443\u043a\u043e\u0432\u0443\u044e \u0437\u0430\u0434\u0430\u0447\u0443",
refresh_btn : "\u0417\u0430\u0433\u0440\u0443\u0437\u0438\u0442\u044c \u043d\u043e\u0432\u0443\u044e \u0437\u0430\u0434\u0430\u0447\u0443",
instructions_visual : "\u0412\u0432\u0435\u0434\u0438\u0442\u0435 \u0434\u0432\u0430 \u0441\u043b\u043e\u0432\u0430:",
instructions_audio : "\u0412\u0432\u0435\u0434\u0438\u0442\u0435 \u0432\u043e\u0441\u0435\u043c\u044c \u0447\u0438\u0441\u0435\u043b:",
help_btn : "\u041f\u043e\u043c\u043e\u0449\u044c",
cant_hear_this : "\u041d\u0435 \u0441\u043b\u044b\u0448\u0438\u0442\u0435 \u0437\u0432\u0443\u043a\u0430?",
incorrect_try_again: "\u041d\u0435\u043f\u0440\u0430\u0432\u0438\u043b\u044c\u043d\u043e."
};
var RecaptchaStr_tr = {
visual_challenge : "G\u00f6rsel deneme",
audio_challenge : "\u0130\u015Fitsel deneme",
refresh_btn : "Yeni deneme",
instructions_visual : "\u0130ki kelimeyi yaz\u0131n:",
instructions_audio : "Sekiz numaray\u0131 yaz\u0131n:",
help_btn : "Yard\u0131m (\u0130ngilizce)",
cant_hear_this : "Duyamad\u0131n\u0131z m\u0131?",
incorrect_try_again: "Yanl\u0131\u015f. Bir daha deneyin."
};
var RecaptchaLangMap = { 
en: RecaptchaStr_en,
de: RecaptchaStr_de,
es: RecaptchaStr_es,
fr: RecaptchaStr_fr,
nl: RecaptchaStr_nl,
pt: RecaptchaStr_pt,
ru: RecaptchaStr_ru,
tr: RecaptchaStr_tr
};
var RecaptchaStr = RecaptchaStr_en;
var RecaptchaOptions;
var RecaptchaDefaultOptions = {
tabindex: 0,
theme: 'red',
callback: null,
lang: 'en',
custom_theme_widget : null
};
var Recaptcha = {
widget: null,
timer_id: -1,
style_set: false,
theme: null,
type: 'image',
ajax_verify_cb : null,
$: function(id) { 
if (typeof(id) == "string") {
return document.getElementById(id); 
}
else {
return id;
}
},
create: function(public_key, element, options) {
Recaptcha.destroy();
if (element) {
Recaptcha.widget = Recaptcha.$(element);
}
Recaptcha._init_options(options);
Recaptcha._call_challenge(public_key);
},
destroy: function() {
var challengefield = Recaptcha.$('recaptcha_challenge_field');
if (challengefield) {
challengefield.parentNode.removeChild(challengefield);
}
if (Recaptcha.timer_id != -1) {
clearInterval(Recaptcha.timer_id);
}
Recaptcha.timer_id = -1;
var imagearea = Recaptcha.$('recaptcha_image');
if (imagearea) {
imagearea.innerHTML = "";
}
// don't clear the area if it's custom, the caller might want to
// reuse the dom elements.
if (Recaptcha.widget) {
if (Recaptcha.theme != "custom") {
Recaptcha.widget.innerHTML = "";
} else {
Recaptcha.widget.style.display = "none";
}
Recaptcha.widget = null;
}
},
focus_response_field: function() {
var $ = Recaptcha.$;
var field = $('recaptcha_response_field');
field.focus();
},
get_challenge: function() {
if (typeof(RecaptchaState) == "undefined") {
return null;
}
return RecaptchaState.challenge;
},
get_response: function() {
var $ = Recaptcha.$;
var field = $('recaptcha_response_field');
if (!field) {
return null;
}
return field.value;
},
ajax_verify: function(callback) {
Recaptcha.ajax_verify_cb = callback;
var scriptURL = Recaptcha._get_api_server() + "/ajaxverify" +
"?c=" + encodeURIComponent(Recaptcha.get_challenge()) +
"&response=" + encodeURIComponent(Recaptcha.get_response());
Recaptcha._add_script(scriptURL);
},
_ajax_verify_callback : function(data) {
Recaptcha.ajax_verify_cb(data);
},
_get_api_server : function() {
var protocol = window.location.protocol;
var server;
if (typeof(_RecaptchaOverrideApiServer) != "undefined") {
server = _RecaptchaOverrideApiServer;
} else if (protocol == 'https:') {
server = "api-secure.recaptcha.net";
} else {
server = "api.recaptcha.net";
}
return protocol + "//" + server;
},
_call_challenge: function(public_key) {
var scriptURL = Recaptcha._get_api_server() + "/challenge?k=" + public_key + "&ajax=1&cachestop=" + Math.random();
if (typeof(RecaptchaOptions.extra_challenge_params) != "undefined") {
scriptURL += "&" + RecaptchaOptions.extra_challenge_params;
}
Recaptcha._add_script(scriptURL);
},
_add_script: function(scriptURL) {
var scriptTag = document.createElement("script");
scriptTag.type = "text/javascript";
scriptTag.src = scriptURL;
Recaptcha._get_script_area().appendChild(scriptTag);
},
_get_script_area: function() {
var parentElement = document.getElementsByTagName("head");
if (!parentElement || parentElement.length < 1) {
parentElement = document.body;
}
else {
parentElement = parentElement[0];
}
return parentElement;
},
_init_options: function(opts) {
var comb_opt = RecaptchaDefaultOptions;
var user_opts = opts || {};
for (var p in user_opts) {
comb_opt[p] = user_opts[p];
}
RecaptchaOptions = comb_opt;
},
challenge_callback: function() {
var element = Recaptcha.widget;
Recaptcha._reset_timer ();
var lang = RecaptchaLangMap[RecaptchaOptions.lang];
if (typeof(lang) != "undefined") {
RecaptchaStr = lang;
}
/* Try to avoid back/forward cache problems */
// firefox
if (window.addEventListener) {
window.addEventListener('unload', function(e){ Recaptcha.destroy(); }, false );
}
// IE
if (Recaptcha._is_ie() && window.attachEvent) {
window.attachEvent('onbeforeunload', function () {
// I think this may be causing some errors -- it seems
// that sometimes IE isn't submitting the form fully
// This may be breaking the back button functionality
// :-(
//Recaptcha.destroy();
});
}
// safari
if (navigator.userAgent.indexOf("KHTML") > 0) {
var iframe = document.createElement('iframe');
iframe.src = "about:blank";
iframe.style.height = "0px";
iframe.style.width = "0px";
iframe.style.visibility = "hidden";
iframe.style.border = "none";
var textNode = document.createTextNode("This frame prevents back/forward cache problems in Safari.");
iframe.appendChild(textNode);
document.body.appendChild(iframe);
}   
Recaptcha._finish_widget();
},
_add_css : function(css) {
var styleTag = document.createElement("style");
styleTag.type = "text/css";
if (styleTag.styleSheet) { // IE only
if (navigator.appVersion.indexOf("MSIE 5") != -1) { // IE 5 crashes if we add a style tag to the DOM
document.write("<style type='text/css'>" + css + "</style>");
}
else {
styleTag.styleSheet.cssText = css;
}
} else if (navigator.appVersion.indexOf("MSIE 5") != -1) {
document.write("<style type='text/css'>" + css + "</style>");
}
else {
var textNode = document.createTextNode(css);
styleTag.appendChild(textNode);
}
Recaptcha._get_script_area().appendChild(styleTag);
},
_set_style: function(css) {
// We only allow the style to be set once, because IE behaves
// poorly otherwise.  Same goes for Recaptcha.theme.
if (Recaptcha.style_set) {
return;
}
Recaptcha.style_set = true;
Recaptcha._add_css(css + "\n\n" +
".recaptcha_is_showing_audio .recaptcha_only_if_image," + 
".recaptcha_isnot_showing_audio .recaptcha_only_if_audio," +
".recaptcha_had_incorrect_sol .recaptcha_only_if_no_incorrect_sol," +
".recaptcha_nothad_incorrect_sol .recaptcha_only_if_incorrect_sol" +
"{display:none !important}");
},
_init_builtin_theme : function() {
var $ = Recaptcha.$;
var $_ = RecaptchaStr;
var $ST = RecaptchaState;
var css, html, imgfmt;
var server_no_slash = $ST.server;
if (server_no_slash[server_no_slash.length - 1] == "/")
server_no_slash = server_no_slash.substring (0, server_no_slash.length - 1);
var IMGROOT = server_no_slash + "/img/" + Recaptcha.theme;
if (Recaptcha.theme == 'clean') {
css = RecaptchaTemplates.CleanCss;
html = RecaptchaTemplates.CleanHtml;
imgfmt = 'png';
}
else {
css = RecaptchaTemplates.VertCss;
html = RecaptchaTemplates.VertHtml;
imgfmt = 'gif';
}
css = css.replace (/IMGROOT/g, IMGROOT);
Recaptcha._set_style(css);
Recaptcha.widget.innerHTML = "<div id='recaptcha_area'>" + html + "</div>";
$('recaptcha_reload').src = IMGROOT + "/refresh." + imgfmt;
$('recaptcha_switch_audio').src = IMGROOT + "/audio." + imgfmt;
$('recaptcha_switch_img').src = IMGROOT + "/text." + imgfmt;
$('recaptcha_whatsthis').src = IMGROOT + "/help." + imgfmt;
if (Recaptcha.theme == 'clean') {
$('recaptcha_logo').src = IMGROOT + "/logo." + imgfmt;
$('recaptcha_tagline').src = IMGROOT + "/tagline." + imgfmt;
}
$('recaptcha_reload').alt = $_.refresh_btn;
$('recaptcha_switch_audio').alt = $_.audio_challenge;
$('recaptcha_switch_img').alt = $_.visual_challenge;
$('recaptcha_whatsthis').alt = $_.help_btn;
$('recaptcha_reload_btn').href = "javascript:Recaptcha.reload ();";
$('recaptcha_reload_btn').title = $_.refresh_btn;
$('recaptcha_switch_audio_btn').href = "javascript:Recaptcha.switch_type('audio');";
$('recaptcha_switch_audio_btn').title = $_.audio_challenge;
$('recaptcha_switch_img_btn').href = "javascript:Recaptcha.switch_type('image');";
$('recaptcha_switch_img_btn').title = $_.visual_challenge;
$('recaptcha_whatsthis_btn').href = Recaptcha._get_help_link();
$('recaptcha_whatsthis_btn').target = "_blank";
$('recaptcha_whatsthis_btn').title = $_.help_btn;
$('recaptcha_whatsthis_btn').onclick = function () {
Recaptcha.showhelp();
return false; 
};
$('recaptcha_table').className = "recaptchatable " + "recaptcha_theme_" + Recaptcha.theme;
if ($("recaptcha_instructions_image")) {
$("recaptcha_instructions_image").appendChild(document.createTextNode($_.instructions_visual));
}
if ($("recaptcha_instructions_audio")) {
$("recaptcha_instructions_audio").appendChild(document.createTextNode($_.instructions_audio));
}
if ($("recaptcha_instructions_error")) {
$("recaptcha_instructions_error").appendChild(document.createTextNode($_.incorrect_try_again));
}
},
_finish_widget: function() {
var $ = Recaptcha.$;
var $_ = RecaptchaStr;
var $ST = RecaptchaState;
var $OPT = RecaptchaOptions;
var theme = $OPT.theme;
switch (theme) {
case 'red': case 'white': case 'blackglass': case 'clean': case 'custom':
break;
default:
theme = 'red';
break;
}
if (!Recaptcha.theme) {
Recaptcha.theme = theme;
}
if (Recaptcha.theme != "custom") {
Recaptcha._init_builtin_theme();
} else {
// get the rules for audio/visual error/no error
Recaptcha._set_style("");
}
var challengeFieldHolder = document.createElement("span");
challengeFieldHolder.id = "recaptcha_challenge_field_holder";
challengeFieldHolder.style.display = "none";
$('recaptcha_response_field').parentNode.insertBefore(challengeFieldHolder, $('recaptcha_response_field'));
$('recaptcha_response_field').setAttribute("autocomplete", "off");
$('recaptcha_image').style.width = '300px';
$('recaptcha_image').style.height = '57px';
Recaptcha.should_focus = false;
Recaptcha._set_challenge($ST.challenge, 'image');
if ($OPT.tabindex) {
$('recaptcha_response_field').tabIndex = $OPT.tabindex;
}
if (Recaptcha.widget) {
Recaptcha.widget.style.display = '';
}
if ($OPT.callback) {
$OPT.callback();
}
},
switch_type : function (new_type) {
var $C = Recaptcha;
$C.type = new_type;
$C.reload ($C.type == 'audio' ? 'a' : 'v');
},
reload: function (reason) {
var $C = Recaptcha;
var $ = $C.$;
var $ST = RecaptchaState;
if (typeof(reason) == "undefined")
reason = 'r';
var scriptURL = $ST.server + "reload?c=" + $ST.challenge + "&k=" + $ST.site + "&reason=" + reason + "&type=" + $C.type;
if (typeof(RecaptchaOptions.extra_challenge_params) != "undefined") {
scriptURL += "&" + RecaptchaOptions.extra_challenge_params;
}
$C.should_focus = reason != 't';
$C._add_script(scriptURL);
},
finish_reload: function(new_challenge, type) {
RecaptchaState.is_incorrect = false;
Recaptcha._set_challenge(new_challenge, type);
},
_set_challenge: function (new_challenge, type) 
{
var $C = Recaptcha;
var $ST = RecaptchaState;
var $ = $C.$;
$ST.challenge = new_challenge;
// this should really be the case already...
$C.type = type;
// using innerHTML prevents back/forward from caching this
$('recaptcha_challenge_field_holder').innerHTML = "<input type='hidden' name='recaptcha_challenge_field' id='recaptcha_challenge_field' value='" + $ST.challenge + "'/>";
if (type == 'audio') {
var wavurl = $ST.server + "image?c=" + $ST.challenge;
var httpwavurl = wavurl;
if (httpwavurl.indexOf("https://") == 0) {
httpwavurl = "http://" + httpwavurl.substring(8);
}
var embedCode;
if ($C._is_ie()) {
embedCode = '<object height="40" CLASSID="CLSID:6BF52A52-394A-11d3-B153-00C04F79FAA6" src="' + httpwavurl + '" ><param name="URL" value="' + httpwavurl + '"><param name="autoStart" value="true"><param name="uimode" value="mini"></object>';
} else {
embedCode = '<EMBED SRC="' + wavurl + '" height="40" bgcolor="white" AUTOSTART="true"/>';
}
var cantHearCode = '<br/><a class="recaptcha_audio_cant_hear_link" target="_blank" href="' + httpwavurl + '">' + RecaptchaStr.cant_hear_this + '</a>';
$("recaptcha_image").innerHTML = embedCode + cantHearCode;
} else if (type == 'image') {
var imageurl = $ST.server + 'image?c=' + $ST.challenge;
// display:block due to http://developer.mozilla.org/en/docs/Images%2C_Tables%2C_and_Mysterious_Gap
// use innerHTML to avoid triggering a firefox dom preference
$('recaptcha_image').innerHTML = "<img style='display:block;' height='57' width='300' src='" + imageurl + "'/>";
}
Recaptcha._css_toggle("recaptcha_had_incorrect_sol", "recaptcha_nothad_incorrect_sol", $ST.is_incorrect);
Recaptcha._css_toggle("recaptcha_is_showing_audio", "recaptcha_isnot_showing_audio", type == 'audio');
$C._clear_input ();
if ($C.should_focus) {
$C.focus_response_field();
}
$C._reset_timer ();
},
_reset_timer : function () {
var $ST = RecaptchaState;
clearInterval(Recaptcha.timer_id);
Recaptcha.timer_id = setInterval ("Recaptcha.reload('t');", ($ST.timeout - 60*5) * 1000);
},
showhelp : function () {
window.open(Recaptcha._get_help_link(),"recaptcha_popup","width=460,height=570,location=no,menubar=no,status=no,toolbar=no,scrollbars=yes,resizable=yes");
},
_clear_input : function () {
var resp=Recaptcha.$('recaptcha_response_field');
resp.value = "";
},
_displayerror : function(msg) {
var $=Recaptcha.$;
$('recaptcha_image').innerHTML = '';
$('recaptcha_image').appendChild (document.createTextNode(msg));
},
reloaderror : function (msg) {
Recaptcha._displayerror(msg);
},
_is_ie : function () { return (navigator.userAgent.indexOf("MSIE") > 0) && !window.opera; },
_css_toggle : function (classT, classF, isset) {
// try to do these CSS toggles just on the recaptcha widget. But,
// if that wasn't passed in, go for the document body.
var element = Recaptcha.widget;
if (!element)
element = document.body;
var classname = element.className;
classname = classname.replace(
new RegExp("(^|\\s+)"+ classT + "(\\s+|$)"), ' ');
classname = classname.replace(
new RegExp("(^|\\s+)"+ classF + "(\\s+|$)"), ' ');
classname += " " + (isset ? classT : classF);
element.className = classname;
},
_get_help_link : function () {
var lang = RecaptchaOptions.lang;
return 'http://recaptcha.net/popuphelp/' + (lang == 'en' ? "" : (lang + ".html"));
}
};