/*  Prototype JavaScript framework, version 1.5.0_rc1
 *  (c) 2005 Sam Stephenson <sam@conio.net>
 *
 *  Prototype is freely distributable under the terms of an MIT-style license.
 *  For details, see the Prototype web site: http://prototype.conio.net/
 *
/*--------------------------------------------------------------------------*/

var Prototype = {
  Version: '1.5.0_rc1',
  ScriptFragment: '(?:<script.*?>)((\n|\r|.)*?)(?:<\/script>)',

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

var Class = {
  create: function() {
    return function() {
      this.initialize.apply(this, arguments);
    }
  }
}

var Abstract = new Object();

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

  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);
  }
});

Function.prototype.bind = function() {
  var __method = this, args = $A(arguments), object = args.shift();
  return function() {
    return __method.apply(object, args.concat($A(arguments)));
  }
}

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

Object.extend(Number.prototype, {
  toColorPart: function() {
    var digits = this.toString(16);
    if (this < 16) return '0' + digits;
    return digits;
  },

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

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

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

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

    return returnValue;
  }
}

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

var PeriodicalExecuter = Class.create();
PeriodicalExecuter.prototype = {
  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);
  },

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

  onTimerEvent: function() {
    if (!this.currentlyExecuting) {
      try {
        this.currentlyExecuting = true;
        this.callback(this);
      } finally {
        this.currentlyExecuting = false;
      }
    }
  }
}
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 += (replacement(match) || '').toString();
        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 = count === undefined ? 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 this;
  },

  truncate: function(length, truncation) {
    length = length || 30;
    truncation = truncation === undefined ? '...' : truncation;
    return this.length > length ?
      this.slice(0, length - truncation.length) + truncation : 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 div = document.createElement('div');
    var text = document.createTextNode(this);
    div.appendChild(text);
    return div.innerHTML;
  },

  unescapeHTML: function() {
    var div = document.createElement('div');
    div.innerHTML = this.stripTags();
    return div.childNodes[0] ? div.childNodes[0].nodeValue : '';
  },

  toQueryParams: function() {
    var pairs = this.match(/^\??(.*)$/)[1].split('&');
    return pairs.inject({}, function(params, pairString) {
      var pair  = pairString.split('=');
      var value = pair[1] ? decodeURIComponent(pair[1]) : undefined;
      params[decodeURIComponent(pair[0])] = value;
      return params;
    });
  },

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

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

    var camelizedString = this.indexOf('-') == 0
      ? oStringList[0].charAt(0).toUpperCase() + oStringList[0].substring(1)
      : oStringList[0];

    for (var i = 1, len = oStringList.length; i < len; i++) {
      var s = oStringList[i];
      camelizedString += s.charAt(0).toUpperCase() + s.substring(1);
    }

    return camelizedString;
  },

  inspect: function(useDoubleQuotes) {
    var escapedString = this.replace(/\\/g, '\\\\');
    if (useDoubleQuotes)
      return '"' + escapedString.replace(/"/g, '\\"') + '"';
    else
      return "'" + escapedString.replace(/'/g, '\\\'') + "'";
  }
});

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

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

var Template = Class.create();
Template.Pattern = /(^|.|\r|\n)(#\{(.*?)\})/;
Template.prototype = {
  initialize: function(template, pattern) {
    this.template = template.toString();
    this.pattern  = pattern || Template.Pattern;
  },

  evaluate: function(object) {
    return this.template.gsub(this.pattern, function(match) {
      var before = match[1];
      if (before == '\\') return match[2];
      return before + (object[match[3]] || '').toString();
    });
  }
}

var $break    = new Object();
var $continue = new Object();

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

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

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

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

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

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

  grep: function(pattern, iterator) {
    var results = [];
    this.each(function(value, index) {
      var stringValue = value.toString();
      if (stringValue.match(pattern))
        results.push((iterator || Prototype.K)(value, index));
    })
    return results;
  },

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

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

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

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

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

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

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

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

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

  toArray: function() {
    return this.collect(Prototype.K);
  },

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

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

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

Object.extend(Enumerable, {
  map:     Enumerable.collect,
  find:    Enumerable.detect,
  select:  Enumerable.findAll,
  member:  Enumerable.include,
  entries: Enumerable.toArray
});
var $A = Array.from = function(iterable) {
  if (!iterable) return [];
  if (iterable.toArray) {
    return iterable.toArray();
  } else {
    var results = [];
    for (var i = 0; i < iterable.length; i++)
      results.push(iterable[i]);
    return results;
  }
}

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; i < this.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 != undefined || value != null;
    });
  },

  flatten: function() {
    return this.inject([], function(array, value) {
      return array.concat(value && value.constructor == Array ?
        value.flatten() : [value]);
    });
  },

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

  indexOf: function(object) {
    for (var i = 0; i < this.length; i++)
      if (this[i] == object) return i;
    return -1;
  },

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

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

  uniq: function() {
    return this.inject([], function(array, value) {
      return array.include(value) ? array : array.concat([value]);
    });
  },

  inspect: function() {
    return '[' + this.map(Object.inspect).join(', ') + ']';
  }
});
var Hash = {
  _each: function(iterator) {
    for (var key in this) {
      var value = this[key];
      if (typeof value == 'function') continue;

      var pair = [key, value];
      pair.key = key;
      pair.value = value;
      iterator(pair);
    }
  },

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

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

  merge: function(hash) {
    return $H(hash).inject($H(this), function(mergedHash, pair) {
      mergedHash[pair.key] = pair.value;
      return mergedHash;
    });
  },

  toQueryString: function() {
    return this.map(function(pair) {
      return pair.map(encodeURIComponent).join('=');
    }).join('&');
  },

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

function $H(object) {
  var hash = Object.extend({}, object || {});
  Object.extend(hash, Enumerable);
  Object.extend(hash, Hash);
  return hash;
}
ObjectRange = Class.create();
Object.extend(ObjectRange.prototype, Enumerable);
Object.extend(ObjectRange.prototype, {
  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(responderToAdd) {
    if (!this.include(responderToAdd))
      this.responders.push(responderToAdd);
  },

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

  dispatch: function(callback, request, transport, json) {
    this.each(function(responder) {
      if (responder[callback] && typeof responder[callback] == 'function') {
        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 = function() {};
Ajax.Base.prototype = {
  setOptions: function(options) {
    this.options = {
      method:       'post',
      asynchronous: true,
      contentType:  'application/x-www-form-urlencoded',
      parameters:   ''
    }
    Object.extend(this.options, options || {});
  },

  responseIsSuccess: function() {
    return this.transport.status == undefined
        || this.transport.status == 0
        || (this.transport.status >= 200 && this.transport.status < 300);
  },

  responseIsFailure: function() {
    return !this.responseIsSuccess();
  }
}

Ajax.Request = Class.create();
Ajax.Request.Events =
  ['Uninitialized', 'Loading', 'Loaded', 'Interactive', 'Complete'];

Ajax.Request.prototype = Object.extend(new Ajax.Base(), {
  initialize: function(url, options) {
    this.transport = Ajax.getTransport();
    this.setOptions(options);
    this.request(url);
  },

  request: function(url) {
    var parameters = this.options.parameters || '';
    if (parameters.length > 0) parameters += '&_=';

    /* Simulate other verbs over post */
    if (this.options.method != 'get' && this.options.method != 'post') {
      parameters += (parameters.length > 0 ? '&' : '') + '_method=' + this.options.method;
      this.options.method = 'post';
    }

    try {
      this.url = url;
      if (this.options.method == 'get' && parameters.length > 0)
        this.url += (this.url.match(/\?/) ? '&' : '?') + parameters;

      Ajax.Responders.dispatch('onCreate', this, this.transport);

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

      if (this.options.asynchronous)
        setTimeout(function() { this.respondToReadyState(1) }.bind(this), 10);

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

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

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

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

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

    if (this.options.method == 'post') {
      requestHeaders.push('Content-type', this.options.contentType);

      /* Force "Connection: close" for Mozilla browsers to work around
       * a bug where XMLHttpReqeuest sends an incorrect Content-length
       * header. See Mozilla Bugzilla #246651.
       */
      if (this.transport.overrideMimeType)
        requestHeaders.push('Connection', 'close');
    }

    if (this.options.requestHeaders)
      requestHeaders.push.apply(requestHeaders, this.options.requestHeaders);

    for (var i = 0; i < requestHeaders.length; i += 2)
      this.transport.setRequestHeader(requestHeaders[i], requestHeaders[i+1]);
  },

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

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

  evalJSON: function() {
    try {
      return eval('(' + this.header('X-JSON') + ')');
    } catch (e) {}
  },

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

  respondToReadyState: function(readyState) {
    var event = Ajax.Request.Events[readyState];
    var transport = this.transport, json = this.evalJSON();

    if (event == 'Complete') {
      try {
        (this.options['on' + this.transport.status]
         || this.options['on' + (this.responseIsSuccess() ? 'Success' : 'Failure')]
         || Prototype.emptyFunction)(transport, json);
      } catch (e) {
        this.dispatchException(e);
      }

      if ((this.header('Content-type') || '').match(/^text\/javascript/i))
        this.evalResponse();
    }

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

    /* Avoid memory leak in MSIE: clean up the oncomplete event handler */
    if (event == 'Complete')
      this.transport.onreadystatechange = Prototype.emptyFunction;
  },

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

Ajax.Updater = Class.create();

Object.extend(Object.extend(Ajax.Updater.prototype, Ajax.Request.prototype), {
  initialize: function(container, url, options) {
    this.containers = {
      success: container.success ? $(container.success) : $(container),
      failure: container.failure ? $(container.failure) :
        (container.success ? null : $(container))
    }

    this.transport = Ajax.getTransport();
    this.setOptions(options);

    var onComplete = this.options.onComplete || Prototype.emptyFunction;
    this.options.onComplete = (function(transport, object) {
      this.updateContent();
      onComplete(transport, object);
    }).bind(this);

    this.request(url);
  },

  updateContent: function() {
    var receiver = this.responseIsSuccess() ?
      this.containers.success : this.containers.failure;
    var response = this.transport.responseText;

    if (!this.options.evalScripts)
      response = response.stripScripts();

    if (receiver) {
      if (this.options.insertion) {
        new this.options.insertion(receiver, response);
      } else {
        Element.update(receiver, response);
      }
    }

    if (this.responseIsSuccess()) {
      if (this.onComplete)
        setTimeout(this.onComplete.bind(this), 10);
    }
  }
});

Ajax.PeriodicalUpdater = Class.create();
Ajax.PeriodicalUpdater.prototype = Object.extend(new Ajax.Base(), {
  initialize: function(container, url, options) {
    this.setOptions(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(request) {
    if (this.options.decay) {
      this.decay = (request.responseText == this.lastText ?
        this.decay * this.options.decay : 1);

      this.lastText = request.responseText;
    }
    this.timer = setTimeout(this.onTimerEvent.bind(this),
      this.decay * this.frequency * 1000);
  },

  onTimerEvent: function() {
    this.updater = new Ajax.Updater(this.container, this.url, this.options);
  }
});
function $() {
  var results = [], element;
  for (var i = 0; i < arguments.length; i++) {
    element = arguments[i];
    if (typeof element == 'string')
      element = document.getElementById(element);
    results.push(Element.extend(element));
  }
  return results.reduce();
}

document.getElementsByClassName = function(className, parentElement) {
  var children = ($(parentElement) || document.body).getElementsByTagName('*');
  return $A(children).inject([], function(elements, child) {
    if (child.className.match(new RegExp("(^|\\s)" + className + "(\\s|$)")))
      elements.push(Element.extend(child));
    return elements;
  });
}

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

if (!window.Element)
  var Element = new Object();

Element.extend = function(element) {
  if (!element) return;
  if (_nativeExtensions || element.nodeType == 3) return element;

  if (!element._extended && element.tagName && element != window) {
    var methods = Object.clone(Element.Methods), cache = Element.extend.cache;

    if (element.tagName == 'FORM')
      Object.extend(methods, Form.Methods);
    if (['INPUT', 'TEXTAREA', 'SELECT'].include(element.tagName))
      Object.extend(methods, Form.Element.Methods);

    for (var property in methods) {
      var value = methods[property];
      if (typeof value == 'function')
        element[property] = cache.findOrStore(value);
    }
  }

  element._extended = true;
  return element;
}

Element.extend.cache = {
  findOrStore: function(value) {
    return this[value] = this[value] || function() {
      return value.apply(null, [this].concat($A(arguments)));
    }
  }
}

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

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

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

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

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

  update: function(element, html) {
    $(element).innerHTML = html.stripScripts();
    setTimeout(function() {html.evalScripts()}, 10);
    return element;
  },

  replace: function(element, html) {
    element = $(element);
    if (element.outerHTML) {
      element.outerHTML = html.stripScripts();
    } else {
      var range = element.ownerDocument.createRange();
      range.selectNodeContents(element);
      element.parentNode.replaceChild(
        range.createContextualFragment(html.stripScripts()), element);
    }
    setTimeout(function() {html.evalScripts()}, 10);
    return element;
  },

  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) {
    element = $(element);
    return $A(element.getElementsByTagName('*'));
  },

  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) {
    element = $(element);
    if (typeof selector == 'string')
      selector = new Selector(selector);
    return selector.match(element);
  },

  up: function(element, expression, index) {
    return Selector.findElement($(element).ancestors(), expression, index);
  },

  down: function(element, expression, index) {
    return Selector.findElement($(element).descendants(), expression, index);
  },

  previous: function(element, expression, index) {
    return Selector.findElement($(element).previousSiblings(), expression, index);
  },

  next: function(element, expression, index) {
    return Selector.findElement($(element).nextSiblings(), expression, index);
  },

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

  getElementsByClassName: function(element, className) {
    element = $(element);
    return document.getElementsByClassName(className, element);
  },

  getHeight: function(element) {
    element = $(element);
    return element.offsetHeight;
  },

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

  hasClassName: function(element, className) {
    if (!(element = $(element))) return;
    return Element.classNames(element).include(className);
  },

  addClassName: function(element, className) {
    if (!(element = $(element))) return;
    Element.classNames(element).add(className);
    return element;
  },

  removeClassName: function(element, className) {
    if (!(element = $(element))) return;
    Element.classNames(element).remove(className);
    return element;
  },

  observe: function() {
    Event.observe.apply(Event, arguments);
    return $A(arguments).first();
  },

  stopObserving: function() {
    Event.stopObserving.apply(Event, arguments);
    return $A(arguments).first();
  },

  // 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 $(element).innerHTML.match(/^\s*$/);
  },

  childOf: function(element, ancestor) {
    element = $(element), ancestor = $(ancestor);
    while (element = element.parentNode)
      if (element == ancestor) return true;
    return false;
  },

  scrollTo: function(element) {
    element = $(element);
    var x = element.x ? element.x : element.offsetLeft,
        y = element.y ? element.y : element.offsetTop;
    window.scrollTo(x, y);
    return element;
  },

  getStyle: function(element, style) {
    element = $(element);
    var value = element.style[style.camelize()];
    if (!value) {
      if (document.defaultView && document.defaultView.getComputedStyle) {
        var css = document.defaultView.getComputedStyle(element, null);
        value = css ? css.getPropertyValue(style) : null;
      } else if (element.currentStyle) {
        value = element.currentStyle[style.camelize()];
      }
    }

    if (window.opera && ['left', 'top', 'right', 'bottom'].include(style))
      if (Element.getStyle(element, 'position') == 'static') value = 'auto';

    return value == 'auto' ? null : value;
  },

  setStyle: function(element, style) {
    element = $(element);
    for (var name in style)
      element.style[name.camelize()] = style[name];
    return element;
  },

  getDimensions: function(element) {
    element = $(element);
    if (Element.getStyle(element, 'display') != 'none')
      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;
    els.visibility = 'hidden';
    els.position = 'absolute';
    els.display = '';
    var originalWidth = element.clientWidth;
    var originalHeight = element.clientHeight;
    els.display = 'none';
    els.position = originalPosition;
    els.visibility = originalVisibility;
    return {width: originalWidth, height: originalHeight};
  },

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

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

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

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

// IE is missing .innerHTML support for TABLE-related elements
if(document.all){
  Element.Methods.update = function(element, html) {
    element = $(element);
    var tagName = element.tagName.toUpperCase();
    if (['THEAD','TBODY','TR','TD'].indexOf(tagName) > -1) {
      var div = document.createElement('div');
      switch (tagName) {
        case 'THEAD':
        case 'TBODY':
          div.innerHTML = '<table><tbody>' +  html.stripScripts() + '</tbody></table>';
          depth = 2;
          break;
        case 'TR':
          div.innerHTML = '<table><tbody><tr>' +  html.stripScripts() + '</tr></tbody></table>';
          depth = 3;
          break;
        case 'TD':
          div.innerHTML = '<table><tbody><tr><td>' +  html.stripScripts() + '</td></tr></tbody></table>';
          depth = 4;
      }
      $A(element.childNodes).each(function(node){
        element.removeChild(node)
      });
      depth.times(function(){ div = div.firstChild });

      $A(div.childNodes).each(
        function(node){ element.appendChild(node) });
    } else {
      element.innerHTML = html.stripScripts();
    }
    setTimeout(function() {html.evalScripts()}, 10);
    return element;
  }
}

Object.extend(Element, Element.Methods);

var _nativeExtensions = false;

if (!window.HTMLElement && /Konqueror|Safari|KHTML/.test(navigator.userAgent)) {
  /* Emulate HTMLElement, HTMLFormElement, HTMLInputElement, HTMLTextAreaElement,
     and HTMLSelectElement in Safari */
  ['', 'Form', 'Input', 'TextArea', 'Select'].each(function(tag) {
    var klass = window['HTML' + tag + 'Element'] = {};
    klass.prototype = document.createElement(tag ? tag.toLowerCase() : 'div').__proto__;
  });
}

Element.addMethods = function(methods) {
  Object.extend(Element.Methods, methods || {});

  function copy(methods, destination) {
    var cache = Element.extend.cache;
    for (var property in methods) {
      var value = methods[property];
      destination[property] = cache.findOrStore(value);
    }
  }

  if (typeof HTMLElement != 'undefined') {
    copy(Element.Methods, HTMLElement.prototype);
    copy(Form.Methods, HTMLFormElement.prototype);
    [HTMLInputElement, HTMLTextAreaElement, HTMLSelectElement].each(function(klass) {
      copy(Form.Element.Methods, klass.prototype);
    });
    _nativeExtensions = true;
  }
}

var Toggle = new Object();
Toggle.display = Element.toggle;

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

Abstract.Insertion = function(adjacency) {
  this.adjacency = adjacency;
}

Abstract.Insertion.prototype = {
  initialize: function(element, content) {
    this.element = $(element);
    this.content = content.stripScripts();

    if (this.adjacency && this.element.insertAdjacentHTML) {
      try {
        this.element.insertAdjacentHTML(this.adjacency, this.content);
      } catch (e) {
        var tagName = this.element.tagName.toLowerCase();
        if (tagName == 'tbody' || tagName == 'tr') {
          this.insertContent(this.contentFromAnonymousTable());
        } else {
          throw e;
        }
      }
    } else {
      this.range = this.element.ownerDocument.createRange();
      if (this.initializeRange) this.initializeRange();
      this.insertContent([this.range.createContextualFragment(this.content)]);
    }

    setTimeout(function() {content.evalScripts()}, 10);
  },

  contentFromAnonymousTable: function() {
    var div = document.createElement('div');
    div.innerHTML = '<table><tbody>' + this.content + '</tbody></table>';
    return $A(div.childNodes[0].childNodes[0].childNodes);
  }
}

var Insertion = new Object();

Insertion.Before = Class.create();
Insertion.Before.prototype = Object.extend(new Abstract.Insertion('beforeBegin'), {
  initializeRange: function() {
    this.range.setStartBefore(this.element);
  },

  insertContent: function(fragments) {
    fragments.each((function(fragment) {
      this.element.parentNode.insertBefore(fragment, this.element);
    }).bind(this));
  }
});

Insertion.Top = Class.create();
Insertion.Top.prototype = Object.extend(new Abstract.Insertion('afterBegin'), {
  initializeRange: function() {
    this.range.selectNodeContents(this.element);
    this.range.collapse(true);
  },

  insertContent: function(fragments) {
    fragments.reverse(false).each((function(fragment) {
      this.element.insertBefore(fragment, this.element.firstChild);
    }).bind(this));
  }
});

Insertion.Bottom = Class.create();
Insertion.Bottom.prototype = Object.extend(new Abstract.Insertion('beforeEnd'), {
  initializeRange: function() {
    this.range.selectNodeContents(this.element);
    this.range.collapse(this.element);
  },

  insertContent: function(fragments) {
    fragments.each((function(fragment) {
      this.element.appendChild(fragment);
    }).bind(this));
  }
});

Insertion.After = Class.create();
Insertion.After.prototype = Object.extend(new Abstract.Insertion('afterEnd'), {
  initializeRange: function() {
    this.range.setStartAfter(this.element);
  },

  insertContent: function(fragments) {
    fragments.each((function(fragment) {
      this.element.parentNode.insertBefore(fragment,
        this.element.nextSibling);
    }).bind(this));
  }
});

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

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(this.toArray().concat(classNameToAdd).join(' '));
  },

  remove: function(classNameToRemove) {
    if (!this.include(classNameToRemove)) return;
    this.set(this.select(function(className) {
      return className != classNameToRemove;
    }).join(' '));
  },

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

Object.extend(Element.ClassNames.prototype, Enumerable);
var Selector = Class.create();
Selector.prototype = {
  initialize: function(expression) {
    this.params = {classNames: []};
    this.expression = expression.toString().strip();
    this.parseExpression();
    this.compileMatcher();
  },

  parseExpression: function() {
    function abort(message) { throw 'Parse error in selector: ' + message; }

    if (this.expression == '')  abort('empty expression');

    var params = this.params, expr = this.expression, match, modifier, clause, rest;
    while (match = expr.match(/^(.*)\[([a-z0-9_:-]+?)(?:([~\|!]?=)(?:"([^"]*)"|([^\]\s]*)))?\]$/i)) {
      params.attributes = params.attributes || [];
      params.attributes.push({name: match[2], operator: match[3], value: match[4] || match[5] || ''});
      expr = match[1];
    }

    if (expr == '*') return this.params.wildcard = true;

    while (match = expr.match(/^([^a-z0-9_-])?([a-z0-9_-]+)(.*)/i)) {
      modifier = match[1], clause = match[2], rest = match[3];
      switch (modifier) {
        case '#':       params.id = clause; break;
        case '.':       params.classNames.push(clause); break;
        case '':
        case undefined: params.tagName = clause.toUpperCase(); break;
        default:        abort(expr.inspect());
      }
      expr = rest;
    }

    if (expr.length > 0) abort(expr.inspect());
  },

  buildMatchExpression: function() {
    var params = this.params, conditions = [], clause;

    if (params.wildcard)
      conditions.push('true');
    if (clause = params.id)
      conditions.push('element.id == ' + clause.inspect());
    if (clause = params.tagName)
      conditions.push('element.tagName.toUpperCase() == ' + clause.inspect());
    if ((clause = params.classNames).length > 0)
      for (var i = 0; i < clause.length; i++)
        conditions.push('Element.hasClassName(element, ' + clause[i].inspect() + ')');
    if (clause = params.attributes) {
      clause.each(function(attribute) {
        var value = 'element.getAttribute(' + attribute.name.inspect() + ')';
        var splitValueBy = function(delimiter) {
          return value + ' && ' + value + '.split(' + delimiter.inspect() + ')';
        }

        switch (attribute.operator) {
          case '=':       conditions.push(value + ' == ' + attribute.value.inspect()); break;
          case '~=':      conditions.push(splitValueBy(' ') + '.include(' + attribute.value.inspect() + ')'); break;
          case '|=':      conditions.push(
                            splitValueBy('-') + '.first().toUpperCase() == ' + attribute.value.toUpperCase().inspect()
                          ); break;
          case '!=':      conditions.push(value + ' != ' + attribute.value.inspect()); break;
          case '':
          case undefined: conditions.push(value + ' != null'); break;
          default:        throw 'Unknown operator ' + attribute.operator + ' in selector';
        }
      });
    }

    return conditions.join(' && ');
  },

  compileMatcher: function() {
    this.match = new Function('element', 'if (!element.tagName) return false; \
      return ' + this.buildMatchExpression());
  },

  findElements: function(scope) {
    var element;

    if (element = $(this.params.id))
      if (this.match(element))
        if (!scope || Element.childOf(element, scope))
          return [element];

    scope = (scope || document).getElementsByTagName(this.params.tagName || '*');

    var results = [];
    for (var i = 0; i < scope.length; i++)
      if (this.match(element = scope[i]))
        results.push(Element.extend(element));

    return results;
  },

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

Object.extend(Selector, {
  matchElements: function(elements, expression) {
    var selector = new Selector(expression);
    return elements.select(selector.match.bind(selector));
  },

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

  findChildElements: function(element, expressions) {
    return expressions.map(function(expression) {
      return expression.strip().split(/\s+/).inject([null], function(results, expr) {
        var selector = new Selector(expr);
        return results.inject([], function(elements, result) {
          return elements.concat(selector.findElements(result || element));
        });
      });
    }).flatten();
  }
});

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

Form.Methods = {
  serialize: function(form) {
    var elements = Form.getElements($(form));
    var queryComponents = new Array();

    for (var i = 0; i < elements.length; i++) {
      var queryComponent = Form.Element.serialize(elements[i]);
      if (queryComponent)
        queryComponents.push(queryComponent);
    }

    return queryComponents.join('&');
  },

  getElements: function(form) {
    form = $(form);
    var elements = new Array();

    for (var tagName in Form.Element.Serializers) {
      var tagElements = form.getElementsByTagName(tagName);
      for (var j = 0; j < tagElements.length; j++)
        elements.push(tagElements[j]);
    }
    return elements;
  },

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

    if (!typeName && !name)
      return inputs;

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

    return matchingInputs;
  },

  disable: function(form) {
    form = $(form);
    var elements = Form.getElements(form);
    for (var i = 0; i < elements.length; i++) {
      var element = elements[i];
      element.blur();
      element.disabled = 'true';
    }
    return form;
  },

  enable: function(form) {
    form = $(form);
    var elements = Form.getElements(form);
    for (var i = 0; i < elements.length; i++) {
      var element = elements[i];
      element.disabled = '';
    }
    return form;
  },

  findFirstElement: function(form) {
    return Form.getElements(form).find(function(element) {
      return element.type != 'hidden' && !element.disabled &&
        ['input', 'select', 'textarea'].include(element.tagName.toLowerCase());
    });
  },

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

Object.extend(Form, Form.Methods);

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

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

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

Form.Element.Methods = {
  serialize: function(element) {
    element = $(element);
    var method = element.tagName.toLowerCase();
    var parameter = Form.Element.Serializers[method](element);

    if (parameter) {
      var key = encodeURIComponent(parameter[0]);
      if (key.length == 0) return;

      if (parameter[1].constructor != Array)
        parameter[1] = [parameter[1]];

      return parameter[1].map(function(value) {
        return key + '=' + encodeURIComponent(value);
      }).join('&');
    }
  },

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

    if (parameter)
      return parameter[1];
  },

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

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

  activate: function(element) {
    element = $(element);
    element.focus();
    if (element.select)
      element.select();
    return element;
  },

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

  enable: function(element) {
    element = $(element);
    element.blur();
    element.disabled = 'true';
    return element;
  }
}

Object.extend(Form.Element, Form.Element.Methods);
var Field = Form.Element;

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

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

  inputSelector: function(element) {
    if (element.checked)
      return [element.name, element.value];
  },

  textarea: function(element) {
    return [element.name, element.value];
  },

  select: function(element) {
    return Form.Element.Serializers[element.type == 'select-one' ?
      'selectOne' : 'selectMany'](element);
  },

  selectOne: function(element) {
    var value = '', opt, index = element.selectedIndex;
    if (index >= 0) {
      opt = element.options[index];
      value = opt.value || opt.text;
    }
    return [element.name, value];
  },

  selectMany: function(element) {
    var value = [];
    for (var i = 0; i < element.length; i++) {
      var opt = element.options[i];
      if (opt.selected)
        value.push(opt.value || opt.text);
    }
    return [element.name, value];
  }
}

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

var $F = Form.Element.getValue;

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

Abstract.TimedObserver = function() {}
Abstract.TimedObserver.prototype = {
  initialize: function(element, frequency, callback) {
    this.frequency = frequency;
    this.element   = $(element);
    this.callback  = callback;

    this.lastValue = this.getValue();
    this.registerCallback();
  },

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

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

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

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

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

Abstract.EventObserver = function() {}
Abstract.EventObserver.prototype = {
  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() {
    var elements = Form.getElements(this.element);
    for (var i = 0; i < elements.length; i++)
      this.registerCallback(elements[i]);
  },

  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();
Form.Element.EventObserver.prototype = Object.extend(new Abstract.EventObserver(), {
  getValue: function() {
    return Form.Element.getValue(this.element);
  }
});

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

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,

  element: function(event) {
    return event.target || event.srcElement;
  },

  isLeftClick: function(event) {
    return (((event.which) && (event.which == 1)) ||
            ((event.button) && (event.button == 1)));
  },

  pointerX: function(event) {
    return event.pageX || (event.clientX +
      (document.documentElement.scrollLeft || document.body.scrollLeft));
  },

  pointerY: function(event) {
    return event.pageY || (event.clientY +
      (document.documentElement.scrollTop || document.body.scrollTop));
  },

  stop: function(event) {
    if (event.preventDefault) {
      event.preventDefault();
      event.stopPropagation();
    } else {
      event.returnValue = false;
      event.cancelBubble = true;
    }
  },

  // find the first node with the given tagName, starting from the
  // node the event was triggered on; traverses the DOM upwards
  findElement: function(event, tagName) {
    var element = Event.element(event);
    while (element.parentNode && (!element.tagName ||
        (element.tagName.toUpperCase() != tagName.toUpperCase())))
      element = element.parentNode;
    return element;
  },

  observers: false,

  _observeAndCache: function(element, name, observer, useCapture) {
    if (!this.observers) this.observers = [];
    if (element.addEventListener) {
      this.observers.push([element, name, observer, useCapture]);
      element.addEventListener(name, observer, useCapture);
    } else if (element.attachEvent) {
      this.observers.push([element, name, observer, useCapture]);
      element.attachEvent('on' + name, observer);
    }
  },

  unloadCache: function() {
    if (!Event.observers) return;
    for (var i = 0; i < Event.observers.length; i++) {
      Event.stopObserving.apply(this, Event.observers[i]);
      Event.observers[i][0] = null;
    }
    Event.observers = false;
  },

  observe: function(element, name, observer, useCapture) {
    element = $(element);
    useCapture = useCapture || false;

    if (name == 'keypress' &&
        (navigator.appVersion.match(/Konqueror|Safari|KHTML/)
        || element.attachEvent))
      name = 'keydown';

    Event._observeAndCache(element, name, observer, useCapture);
  },

  stopObserving: function(element, name, observer, useCapture) {
    element = $(element);
    useCapture = useCapture || false;

    if (name == 'keypress' &&
        (navigator.appVersion.match(/Konqueror|Safari|KHTML/)
        || element.detachEvent))
      name = 'keydown';

    if (element.removeEventListener) {
      element.removeEventListener(name, observer, useCapture);
    } else if (element.detachEvent) {
      try {
        element.detachEvent('on' + name, observer);
      } catch (e) {}
    }
  }
});

/* prevent memory leaks in IE */
if (navigator.appVersion.match(/\bMSIE\b/))
  Event.observe(window, 'unload', Event.unloadCache, false);
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;
  },

  realOffset: function(element) {
    var valueT = 0, valueL = 0;
    do {
      valueT += element.scrollTop  || 0;
      valueL += element.scrollLeft || 0;
      element = element.parentNode;
    } while (element);
    return [valueL, valueT];
  },

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

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

  offsetParent: 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;
  },

  // 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 = this.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 = this.realOffset(element);

    this.xcomp = x + offsetcache[0] - this.deltaX;
    this.ycomp = y + offsetcache[1] - this.deltaY;
    this.offset = this.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;
  },

  page: 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)
        if (Element.getStyle(element,'position')=='absolute') break;

    } while (element = element.offsetParent);

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

    return [valueL, valueT];
  },

  clone: function(source, target) {
    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 = Position.page(source);

    // find coordinate system to use
    target = $(target);
    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(target,'position') == 'absolute') {
      parent = Position.offsetParent(target);
      delta = Position.page(parent);
    }

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

  absolutize: function(element) {
    element = $(element);
    if (element.style.position == 'absolute') return;
    Position.prepare();

    var offsets = Position.positionedOffset(element);
    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';;
  },

  relativize: function(element) {
    element = $(element);
    if (element.style.position == 'relative') return;
    Position.prepare();

    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;
  }
}

// Safari returns margins on body which is incorrect if the child is absolutely
// positioned.  For performance reasons, redefine Position.cumulativeOffset for
// KHTML/WebKit only.
if (/Konqueror|Safari|KHTML/.test(navigator.userAgent)) {
  Position.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 [valueL, valueT];
  }
}

Element.addMethods();

LowPro = {};
LowPro.Version = '0.2';

if (!Element.addMethods) 
  Element.addMethods = function(o) { Object.extend(Element.Methods, o) };

// Simple utility methods for working with the DOM
DOM = {
  nextElement : function(element) {
    element = $(element);
    while (element = element.nextSibling) 
      if (element.nodeType == 1) return $(element);
    return null;
  },
  previousElement : function(element) {
    element = $(element);
    while (element = element.previousSibling) 
      if (element.nodeType == 1) return $(element);
    return null;
  },
  remove : function(element) {
    return $(element).parentNode.removeChild(element);
  },
  insertAfter : function(element, node) {
    return $(element).previousSibling.inserBefore(node);
  },
  replaceElement : function(element, node) {
    $(element).parentNode.replaceChild(node, element);
    return node;
  }
};

// Add them to the element mixin
Element.addMethods(DOM);

// DOMBuilder for prototype
DOM.Builder = {
  IE_TRANSLATIONS : {
    'class' : 'className',
    'for' : 'htmlFor'
  },
  ieAttrSet : function(attrs, attr, el) {
    var trans;
    if (trans = this.IE_TRANSLATIONS[attr]) el[trans] = attrs[attr];
    else if (attr == 'style') el.style.cssText = attrs[attr];
    else if (attr.match(/^on/)) el[attr] = new Function(attrs[attr]);
    else el.setAttribute(attr, attrs[attr]);
  },
	tagFunc : function(tag) {
	  return function() {
	    var attrs, children; 
	    if (arguments.length>0) { 
	      if (arguments[0].nodeName || typeof arguments[0] == "string") children = arguments; 
	      else { attrs = arguments[0]; children = [].slice.call(arguments, 1); };
	    }
	    return DOM.Builder.create(tag, attrs, children);
	  };
  },
	create : function(tag, attrs, children) {
		attrs = attrs || {}; children = children || [];
		var isIE = navigator.userAgent.match(/MSIE/);
		var el = document.createElement((isIE && attrs.name) ? "<" + tag + " name=" + attrs.name + ">" : tag);
		for (var attr in attrs) {
		  if (typeof attrs[attr] != 'function') {
		    if (isIE) this.ieAttrSet(attrs, attrs, el);
		    else el.setAttribute(attr, attrs[attr]);
		  };
	  }
		for (var i=0; i<children.length; i++) {
			if (typeof children[i] == 'string') children[i] = document.createTextNode(children[i]);
			el.appendChild(children[i]);
		}
		return $(el);
	}
};

// Automatically create node builders as $tagName.
(function() { 
	var els = ("p|div|span|strong|em|img|table|tr|td|th|thead|tbody|tfoot|pre|code|" + 
				   "h1|h2|h3|h4|h5|h6|ul|ol|li|form|input|textarea|legend|fieldset|" + 
				   "select|option|blockquote|cite|br|hr|dd|dl|dt|address|a|button|abbr|acronym|" +
				   "script|link|style|bdo|ins|del|object|param|col|colgroup|optgroup|caption|" + 
				   "label|dfn|kbd|samp|var").split("|");
  var el, i=0;
	while (el = els[i++]) window['$' + el] = DOM.Builder.tagFunc(el);
})();



// Adapted from DOM Ready extension by Dan Webb
// http://www.vivabit.com/bollocks/2006/06/21/a-dom-ready-extension-for-prototype
// which was based on work by Matthias Miller, Dean Edwards and John Resig
//
// Usage:
//
// Event.onReady(callbackFunction);
Object.extend(Event, {
  _domReady : function() {
    if (arguments.callee.done) return;
    arguments.callee.done = true;

    if (Event._timer)  clearInterval(Event._timer);
    
    Event._readyCallbacks.each(function(f) { f() });
    Event._readyCallbacks = null;
    
  },
  onReady : function(f) {
    if (!this._readyCallbacks) {
      var domReady = this._domReady;
      
      if (domReady.done) return f();
      
      if (document.addEventListener)
        document.addEventListener("DOMContentLoaded", domReady, false);

        /*@cc_on @*/
        /*@if (@_win32)
            document.write("<script id=__ie_onload defer src=javascript:void(0)><\/script>");
            document.getElementById("__ie_onload").onreadystatechange = function() {
                if (this.readyState == "complete") { domReady(); }
            };
        /*@end @*/
        
        if (/WebKit/i.test(navigator.userAgent)) { 
          this._timer = setInterval(function() {
            if (/loaded|complete/.test(document.readyState)) domReady(); 
          }, 10);
        }
        
        Event.observe(window, 'load', domReady);
        Event._readyCallbacks =  [];
    }
    Event._readyCallbacks.push(f);
  }
});

// Extend Element with observe and stopObserving.
Element.addMethods({
  observe : function(el, event, callback) {
    Event.observe(el, event, callback);
  },
  stopObserving : function(el, event, callback) {
    Event.stopObserving(el, event, callback);
  }
});

// Replace out existing event observe code with Dean Edwards' addEvent
// http://dean.edwards.name/weblog/2005/10/add-event/
Object.extend(Event, {
  observe : function(el, type, func) {
    el = $(el);
    if (!func.$$guid) func.$$guid = Event._guid++;
  	if (!el.events) el.events = {};
  	var handlers = el.events[type];
  	if (!handlers) {
  		handlers = el.events[type] = {};
  		if (el["on" + type]) {
  			handlers[0] = el["on" + type];
  		}
  	}
  	handlers[func.$$guid] = func;
  	el["on" + type] = Event._handleEvent;
  	
  	 if (!Event.observers) Event.observers = [];
  	 Event.observers.push([el, name, func, false]);
	},
	stopObserving : function(el, type, func) {
    if (el.events && el.events[type]) delete el.events[type][func.$$guid];
  },
  _handleEvent : function(e) {
    var returnValue = true;
    e = e || Event._fixEvent(window.event);
    var handlers = this.events[e.type], el = $(this);
    for (var i in handlers) {
    	el.$$handleEvent = handlers[i];
    	if (el.$$handleEvent(e) === false) returnValue = false;
    }
  	return returnValue;
  },
  _fixEvent : function(e) {
    e.preventDefault = Event._preventDefault;
    e.stopPropagation = Event._stopPropagation;
    return e;
  },
  _preventDefault : function() { this.returnValue = false },
  _stopPropagation : function() { this.cancelBubble = true },
  _guid : 1
});

// Allows you to trigger an event element.  
Object.extend(Event, {
  trigger : function(element, event, fakeEvent) {
    element = $(element);
    fakeEvent = fakeEvent || { type :  event };
    this.observers.each(function(cache) {
      if (cache[0] == element && cache[1] == event)
        cache[2].call(element, fakeEvent);
    });
  }
});

// Based on event:Selectors by Justin Palmer
// http://encytemedia.com/event-selectors/
//
// Usage:
//
// Event.addBehavior({
//      "selector:event" : function(event) { /* event handler.  this refers to the element. */ },
//      "selector" : function() { /* runs function on dom ready.  this refers to the element. */ }
//      ...
// });
//
// Multiple calls will add to exisiting rules.  Event.addBehavior.reassignAfterAjax and
// Event.addBehavior.autoTrigger can be adjusted to needs.
Event.addBehavior = function(rules) {
  var ab = this.addBehavior;
  Object.extend(ab.rules, rules);
  
  if (ab.autoTrigger) {
    this.onReady(ab.load.bind(ab));
  }
  
  Ajax.Responders.register({
    onComplete : function() { 
      if (Event.addBehavior.reassignAfterAjax) 
        setTimeout(function() { ab.load() }, 10);
    }
  });
  
};

Object.extend(Event.addBehavior, {
  rules : {}, cache : [],
  reassignAfterAjax : true,
  autoTrigger : true,
  
  load : function() {
    this.unload();
    for (var selector in this.rules) {
      var observer = this.rules[selector];
      var sels = selector.split(',');
      sels.each(function(sel) {
        var parts = sel.split(/:(?=[a-z]+$)/), css = parts[0], event = parts[1];
        $$(css).each(function(element) {
          if (event) {
            $(element).observe(event, observer);
            Event.addBehavior.cache.push([element, event, observer]);
          } else {
            if (!element.$$assigned || !element.$$assigned.include(observer)) {
              if (observer.attach) observer.attach(element);
              else observer.call($(element));
              element.$$assigned = element.$$assigned || [];
              element.$$assigned.push(observer);
            }
          }
        });
      });
    }
  },
  
  unload : function() {
    this.cache.each(function(c) {
      Event.stopObserving.apply(Event, c);
    });
  }
  
});

Event.observe(window, 'unload', Event.addBehavior.unload.bind(Event.addBehavior));

// Behaviors can be bound to elements to provide an object orientated way of controlling elements
// and their behavior.  Use Behavior.create() to make a new behavior class then use attach() to
// glue it to an element.  Each element then gets it's own instance of the behavior and any
// methods called onxxx are bound to the relevent event.
// 
// Usage:
// 
// var MyBehavior = Behavior.create({
//   onmouseover : function() { this.element.addClassName('bong') } 
// });

// Event.addBehavior({ 'a.rollover' : MyBehavior });
Behavior = {
  create : function(members) {
    var behavior = function(element) { this.element = $(element) };
    behavior.prototype.initialize = Prototype.K;
    Object.extend(behavior.prototype, members);
    Object.extend(behavior, Behavior.ClassMethods);
    return behavior;
  },
  ClassMethods : {
    attach : function(element) {
      var bound = new this(element);
      bound.initialize.apply(bound);
      this._bindEvents(bound);
      return bound;
    },
    _bindEvents : function(bound) {
      for (var member in bound)
        if (member.match(/^on(.+)/) && typeof bound[member] == 'function')
          bound.element.observe(RegExp.$1, bound[member].bindAsEventListener(bound));
    }
  }
};


// Original code by Sylvian Zimmer
// http://www.sylvainzimmer.com/index.php/archives/2006/06/25/speeding-up-prototypes-selector/
// Optimises execution speed of the $$ function.  Rewritten for readability by Justin Palmer.
// 
// Turn off optimisation with LowPro.optimize$$ = false;
LowPro.SelectorLite = Class.create();
LowPro.SelectorLite.prototype = {
  initialize: function(selectors) {
    this.results = []; 
    this.selectors = []; 
    this.index = 0;
    
    for(var i = selectors.length -1; i >= 0; i--) {
      var params = { tag: '*', id: null, classes: [] };
      var selector = selectors[i];
      var needle = selector.length - 1;
      
      do {
        var id = selector.lastIndexOf("#");
        var klass = selector.lastIndexOf(".");
        var cursor = Math.max(id, klass);
        
        if(cursor == -1) params.tag = selector.toUpperCase();
        else if(id == -1 || klass == cursor) params.classes.push(selector.substring(klass + 1));
        else if(!params.id) params.id = selector.substring(id + 1);
        
        selector = selector.substring(0, cursor);
      } while(cursor > 0);
      
      this.selectors[i] = params;
    }
    
  },
  
  get: function(root) {
    this.findElements(root || document, this.index == (this.selectors.length - 1));
    return this.results;
  },
  
  findElements: function(parent, descendant) {
    var selector = this.selectors[this.index], results = [], element;
    if (selector.id) {
      element = $(selector.id);
      if (element && (selector.tag == '*' || element.tagName == selector.tag) && (element.childOf(parent))) {
          results = [element];
      }
    } else {
      results = $A(parent.getElementsByTagName(selector.tag));
    }
    
    if (selector.classes.length == 1) {
      results = results.select(function(target) {
       return $(target).hasClassName(selector.classes[0]);
      });
    } else if (selector.classes.length > 1) {
      results = results.select(function(target) {
        var klasses = $(target).classNames();
        return selector.classes.all(function(klass) {
          return klasses.include(klass);
        });
      });
    }
    
    if (descendant) {
      this.results = this.results.concat(results);
    } else {
      ++this.index;
      results.each(function(target) {
        this.findElements(target, this.index == (this.selectors.length - 1));
      }.bind(this));
    }
  }
};

LowPro.$$old=$$;
LowPro.optimize$$ = true;

$$ = function(a,b) {
  if (LowPro.optimize$$ == false || b || a.indexOf("[")>=0) 
    return LowPro.$$old(a, b);
  return new LowPro.SelectorLite(a.split(/\s+/)).get();
};



/**
 * $$ Selector add-on improvement
 * Didn't work with multiple selectors because of space!
 *
 * @author Chris Sheail
 * @package LBB_JS_Library
 * @copyright 2006 LBB Internet Limited
 * @version 1.0.0
 **/
$$ = function(a,b) {
  if (LowPro.optimize$$ == false || b || a.indexOf("[")>=0) 
    return LowPro.$$old(a, b);

  // Must trim for multiple selectors to work
  a = a.replace(/^\s+|\s+$/g, '');

  return new LowPro.SelectorLite(a.split(/\s+/)).get();
};

/**
 * Event.triggerBehaviour(rule);
 * Manually trigger an EventSelectors style rule
 *
 * @author Chris Sheail
 * @package LBB_JS_Library
 * @copyright 2006 LBB Internet Limited
 * @version 1.0.0
 **/
Object.extend(Event, 
{
	triggerBehaviour: function(rule)
	{
		var selectors = $A(rule.split(','));
		selectors.each(function(selector) 
			{
				var temp = selector.split(':');
				var ele = temp[0].replace(/^\s+|\s+$/g, '');
				var event = temp[1].replace(/^\s+|\s+$/g, '');

				$$(ele).each(function(obj)
					{
						Event.trigger(obj, event);
					}
				);
			}
		);
	}
});

/**
 * Event.onReady(callbackFunction);
 * Didn't work with IE over HTTPS (complained about non-secure content)
 *
 * @author Chris Sheail
 * @package LBB_JS_Library
 * @copyright 2006 LBB Internet Limited
 * @version 1.0.0
 **/
Object.extend(Event, 
{
	onReady : function(f) 
	{
		if (!this._readyCallbacks) 
		{
			var domReady = this._domReady;

			if (domReady.done) return f();

			if (document.addEventListener)
				document.addEventListener("DOMContentLoaded", domReady, false);

			// Changed this line
			// document.write("<script id=__ie_onload defer src=javascript:void(0)><\/script>");

			/*@cc_on @*/
			/*@if (@_win32)
			document.write('<script id="__ie_onload" defer="defer" src="//0"><\/script>');
			document.getElementById("__ie_onload").onreadystatechange = function() {
			if (this.readyState == "complete") { domReady(); }
			};
			/*@end @*/

			if (/WebKit/i.test(navigator.userAgent)) 
			{ 
				this._timer = setInterval(function() 
				{
					if (/loaded|complete/.test(document.readyState)) domReady(); 
				}, 10);
			}

			Event.observe(window, 'load', domReady);
			Event._readyCallbacks =  [];
		}
		Event._readyCallbacks.push(f);
	}
});

/**
 * $(element).eachElement(iteratorFunction);
 * Iterates over each child element
 *
 * @author Justin Palmer
 * @package LBB_JS_Library
 * @copyright Unknown
 * @version 1.0.0
 **/
Element.addMethods(
{
	eachElement: function(element, iterator) 
	{
		element = $(element);
		element.cleanWhitespace();
		$A(element.childNodes).each(iterator);
	}
});


/**
 * Cookie object (based on work by Carlos Reche)
 * Cookie.set(name, value, daysToExpire, path);
 * Cookie.get(name);
 * Cookie.erase(name);
 * Cookie.eraseAll();
 * Cookie.accept();
 *
 * @author Chris Sheail
 * @package LBB_JS_Library
 * @copyright 2006 LBB Internet Limited
 * @version 1.0.0
 **/
var Cookie = 
{	
	set: function(name, value, daysToExpire, path) 
	{
		var expire = '';
		if (daysToExpire != undefined) 
		{
			var d = new Date();
			d.setTime(d.getTime() + (86400000 * parseFloat(daysToExpire)));
			expire = '; expires=' + d.toGMTString();
		}

		if (path == undefined) { var path = '/';}
		path = '; path=' + path;

		return (document.cookie = escape(name) + '=' + escape(value || '') + expire + path);
	},

	get: function(name) 
	{
		var cookie = document.cookie.match(new RegExp('(^|;)\\s*' + escape(name) + '=([^;\\s]*)'));
		return (cookie ? unescape(cookie[2]) : '');
	},

	erase: function(name) 
	{
		var cookie = Cookie.get(name) || true;
		Cookie.set(name, '', -1);
		return cookie;
	},

	eraseAll: function() 
	{
		var cookieArray = document.cookie.split('; ');
		var singleCookie;
		for (var i = 0; i < cookieArray.length; ++ i)
		{
			singleCookie = cookieArray[i].split('=');
			if (singleCookie.length != 2) {	continue;}

			Cookie.erase(unescape(singleCookie[0]));
		}
	},

	accept: function() 
	{
		if (typeof navigator.cookieEnabled == 'boolean') 
		{
			return navigator.cookieEnabled;
		}

		Cookie.set('_test', 1);
		if (Cookie.get('_test') != 1) 
		{
			return false;
		}
		
		Cookie.erase('_test');
		return true;
	}
};

/**
 * Some standard behaviours
 *
 * @author Chris Sheail
 * @package LBB_JS_Library
 * @copyright 2006 LBB Internet Limited
 * @version 1.0.0
 **/
Event.addBehavior(
{
	'a.external:click': function(event) 
	{
		var element = Event.findElement(event, 'a');
		window.open(element.href); 

		return false;
	},

	'a.popup:click': function(event) 
	{
		var element = Event.findElement(event, 'a');
		var temp = element.getAttribute('rel');
		temp = temp.split('|');
		
		var name = '';
		var attribs = '';

		// name|width|height|resize|scroll
		if (temp[0]) { name = temp[0];}
		if (temp[1]) { attribs = attribs + 'width=' + temp[1] + ',';}
		if (temp[2]) { attribs = attribs + 'height=' + temp[2] + ',';}
		if (temp[3]) { attribs = attribs + 'resizable=' + temp[3] + ',';}
		if (temp[4]) { attribs = attribs + 'scrollbars=' + temp[4] + ',';}
		attribs = attribs.substr(0, attribs.length - 1);

		window.open(element.href, name, attribs); 

		return false;
	},

	'a.mailto': function() 
	{
		var href = this.firstChild.nodeValue.replace(/__AT__/gi, '@');
		href = href.replace(/__DOT__/gi, '.');

		var subject = (this.title) ? '?subject=' + escape(this.title) : '';
		this.href = 'mailto:' + href + subject;

		this.firstChild.nodeValue = href;
	},
	
	'a.backToTop:click': function(event) 
	{
		window.scrollTo(0,0);
		return false;
	}
});

/*	Unobtrusive Flash Objects (UFO) v3.20 <http://www.bobbyvandersluis.com/ufo/>
	Copyright 2005, 2006 Bobby van der Sluis
	This software is licensed under the CC-GNU LGPL <http://creativecommons.org/licenses/LGPL/2.1/>
*/

var UFO = {
	req: ["movie", "width", "height", "majorversion", "build"],
	opt: ["play", "loop", "menu", "quality", "scale", "salign", "wmode", "bgcolor", "base", "flashvars", "devicefont", "allowscriptaccess", "seamlesstabbing"],
	optAtt: ["id", "name", "align"],
	optExc: ["swliveconnect"],
	ximovie: "ufo.swf",
	xiwidth: "215",
	xiheight: "138",
	ua: navigator.userAgent.toLowerCase(),
	pluginType: "",
	fv: [0,0],
	foList: [],
		
	create: function(FO, id) {
		if (!UFO.uaHas("w3cdom") || UFO.uaHas("ieMac")) return;
		UFO.getFlashVersion();
		UFO.foList[id] = UFO.updateFO(FO);
		UFO.createCSS("#" + id, "visibility:hidden;");
		UFO.domLoad(id);
	},

	updateFO: function(FO) {
		if (typeof FO.xi != "undefined" && FO.xi == "true") {
			if (typeof FO.ximovie == "undefined") FO.ximovie = UFO.ximovie;
			if (typeof FO.xiwidth == "undefined") FO.xiwidth = UFO.xiwidth;
			if (typeof FO.xiheight == "undefined") FO.xiheight = UFO.xiheight;
		}
		FO.mainCalled = false;
		return FO;
	},

	domLoad: function(id) {
		var _t = setInterval(function() {
			if ((document.getElementsByTagName("body")[0] != null || document.body != null) && document.getElementById(id) != null) {
				UFO.main(id);
				clearInterval(_t);
			}
		}, 250);
		if (typeof document.addEventListener != "undefined") {
			document.addEventListener("DOMContentLoaded", function() { UFO.main(id); clearInterval(_t); } , null); // Gecko, Opera 9+
		}
	},

	main: function(id) {
		var _fo = UFO.foList[id];
		if (_fo.mainCalled) return;
		UFO.foList[id].mainCalled = true;
		document.getElementById(id).style.visibility = "hidden";
		if (UFO.hasRequired(id)) {
			if (UFO.hasFlashVersion(parseInt(_fo.majorversion, 10), parseInt(_fo.build, 10))) {
				if (typeof _fo.setcontainercss != "undefined" && _fo.setcontainercss == "true") UFO.setContainerCSS(id);
				UFO.writeSWF(id);
			}
			else if (_fo.xi == "true" && UFO.hasFlashVersion(6, 65)) {
				UFO.createDialog(id);
			}
		}
		document.getElementById(id).style.visibility = "visible";
	},
	
	createCSS: function(selector, declaration) {
		var _h = document.getElementsByTagName("head")[0]; 
		var _s = UFO.createElement("style");
		if (!UFO.uaHas("ieWin")) _s.appendChild(document.createTextNode(selector + " {" + declaration + "}")); // bugs in IE/Win
		_s.setAttribute("type", "text/css");
		_s.setAttribute("media", "screen"); 
		_h.appendChild(_s);
		if (UFO.uaHas("ieWin") && document.styleSheets && document.styleSheets.length > 0) {
			var _ls = document.styleSheets[document.styleSheets.length - 1];
			if (typeof _ls.addRule == "object") _ls.addRule(selector, declaration);
		}
	},
	
	setContainerCSS: function(id) {
		var _fo = UFO.foList[id];
		var _w = /%/.test(_fo.width) ? "" : "px";
		var _h = /%/.test(_fo.height) ? "" : "px";
		UFO.createCSS("#" + id, "width:" + _fo.width + _w +"; height:" + _fo.height + _h +";");
		if (_fo.width == "100%") {
			UFO.createCSS("body", "margin-left:0; margin-right:0; padding-left:0; padding-right:0;");
		}
		if (_fo.height == "100%") {
			UFO.createCSS("html", "height:100%; overflow:hidden;");
			UFO.createCSS("body", "margin-top:0; margin-bottom:0; padding-top:0; padding-bottom:0; height:100%;");
		}
	},

	createElement: function(el) {
		return (UFO.uaHas("xml") && typeof document.createElementNS != "undefined") ?  document.createElementNS("http://www.w3.org/1999/xhtml", el) : document.createElement(el);
	},

	createObjParam: function(el, aName, aValue) {
		var _p = UFO.createElement("param");
		_p.setAttribute("name", aName);	
		_p.setAttribute("value", aValue);
		el.appendChild(_p);
	},

	uaHas: function(ft) {
		var _u = UFO.ua;
		switch(ft) {
			case "w3cdom":
				return (typeof document.getElementById != "undefined" && typeof document.getElementsByTagName != "undefined" && (typeof document.createElement != "undefined" || typeof document.createElementNS != "undefined"));
			case "xml":
				var _m = document.getElementsByTagName("meta");
				var _l = _m.length;
				for (var i = 0; i < _l; i++) {
					if (/content-type/i.test(_m[i].getAttribute("http-equiv")) && /xml/i.test(_m[i].getAttribute("content"))) return true;
				}
				return false;
			case "ieMac":
				return /msie/.test(_u) && !/opera/.test(_u) && /mac/.test(_u);
			case "ieWin":
				return /msie/.test(_u) && !/opera/.test(_u) && /win/.test(_u);
			case "gecko":
				return /gecko/.test(_u) && !/applewebkit/.test(_u);
			case "opera":
				return /opera/.test(_u);
			case "safari":
				return /applewebkit/.test(_u);
			default:
				return false;
		}
	},
	
	getFlashVersion: function() {
		if (UFO.fv[0] != 0) return;  
		if (navigator.plugins && typeof navigator.plugins["Shockwave Flash"] == "object") {
			UFO.pluginType = "npapi";
			var _d = navigator.plugins["Shockwave Flash"].description;
			if (typeof _d != "undefined") {
				_d = _d.replace(/^.*\s+(\S+\s+\S+$)/, "$1");
				var _m = parseInt(_d.replace(/^(.*)\..*$/, "$1"), 10);
				var _r = /r/.test(_d) ? parseInt(_d.replace(/^.*r(.*)$/, "$1"), 10) : 0;
				UFO.fv = [_m, _r];
			}
		}
		else if (window.ActiveXObject) {
			UFO.pluginType = "ax";
			try { // avoid fp 6 crashes
				var _a = new ActiveXObject("ShockwaveFlash.ShockwaveFlash.7");
			}
			catch(e) {
				try { 
					var _a = new ActiveXObject("ShockwaveFlash.ShockwaveFlash.6");
					UFO.fv = [6, 0];
					_a.AllowScriptAccess = "always"; // throws if fp < 6.47 
				}
				catch(e) {
					if (UFO.fv[0] == 6) return;
				}
				try {
					var _a = new ActiveXObject("ShockwaveFlash.ShockwaveFlash");
				}
				catch(e) {}
			}
			if (typeof _a == "object") {
				var _d = _a.GetVariable("$version"); // bugs in fp 6.21/6.23
				if (typeof _d != "undefined") {
					_d = _d.replace(/^\S+\s+(.*)$/, "$1").split(",");
					UFO.fv = [parseInt(_d[0], 10), parseInt(_d[2], 10)];
				}
			}
		}
	},

	hasRequired: function(id) {
		var _l = UFO.req.length;
		for (var i = 0; i < _l; i++) {
			if (typeof UFO.foList[id][UFO.req[i]] == "undefined") return false;
		}
		return true;
	},
	
	hasFlashVersion: function(major, release) {
		return (UFO.fv[0] > major || (UFO.fv[0] == major && UFO.fv[1] >= release)) ? true : false;
	},

	writeSWF: function(id) {
		var _fo = UFO.foList[id];
		var _e = document.getElementById(id);
		if (UFO.pluginType == "npapi") {
			if (UFO.uaHas("gecko") || UFO.uaHas("xml")) {
				while(_e.hasChildNodes()) {
					_e.removeChild(_e.firstChild);
				}
				var _obj = UFO.createElement("object");
				_obj.setAttribute("type", "application/x-shockwave-flash");
				_obj.setAttribute("data", _fo.movie);
				_obj.setAttribute("width", _fo.width);
				_obj.setAttribute("height", _fo.height);
				var _l = UFO.optAtt.length;
				for (var i = 0; i < _l; i++) {
					if (typeof _fo[UFO.optAtt[i]] != "undefined") _obj.setAttribute(UFO.optAtt[i], _fo[UFO.optAtt[i]]);
				}
				var _o = UFO.opt.concat(UFO.optExc);
				var _l = _o.length;
				for (var i = 0; i < _l; i++) {
					if (typeof _fo[_o[i]] != "undefined") UFO.createObjParam(_obj, _o[i], _fo[_o[i]]);
				}
				_e.appendChild(_obj);
			}
			else {
				var _emb = "";
				var _o = UFO.opt.concat(UFO.optAtt).concat(UFO.optExc);
				var _l = _o.length;
				for (var i = 0; i < _l; i++) {
					if (typeof _fo[_o[i]] != "undefined") _emb += ' ' + _o[i] + '="' + _fo[_o[i]] + '"';
				}
				_e.innerHTML = '<embed type="application/x-shockwave-flash" src="' + _fo.movie + '" width="' + _fo.width + '" height="' + _fo.height + '" pluginspage="http://www.macromedia.com/go/getflashplayer"' + _emb + '></embed>';
			}
		}
		else if (UFO.pluginType == "ax") {
			var _objAtt = "";
			var _l = UFO.optAtt.length;
			for (var i = 0; i < _l; i++) {
				if (typeof _fo[UFO.optAtt[i]] != "undefined") _objAtt += ' ' + UFO.optAtt[i] + '="' + _fo[UFO.optAtt[i]] + '"';
			}
			var _objPar = "";
			var _l = UFO.opt.length;
			for (var i = 0; i < _l; i++) {
				if (typeof _fo[UFO.opt[i]] != "undefined") _objPar += '<param name="' + UFO.opt[i] + '" value="' + _fo[UFO.opt[i]] + '" />';
			}
			var _p = window.location.protocol == "https:" ? "https:" : "http:";
			_e.innerHTML = '<object classid="clsid:D27CDB6E-AE6D-11cf-96B8-444553540000"' + _objAtt + ' width="' + _fo.width + '" height="' + _fo.height + '" codebase="' + _p + '//download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=' + _fo.majorversion + ',0,' + _fo.build + ',0"><param name="movie" value="' + _fo.movie + '" />' + _objPar + '</object>';
		}
	},
		
	createDialog: function(id) {
		var _fo = UFO.foList[id];
		UFO.createCSS("html", "height:100%; overflow:hidden;");
		UFO.createCSS("body", "height:100%; overflow:hidden;");
		UFO.createCSS("#xi-con", "position:absolute; left:0; top:0; z-index:1000; width:100%; height:100%; background-color:#fff; filter:alpha(opacity:75); opacity:0.75;");
		UFO.createCSS("#xi-dia", "position:absolute; left:50%; top:50%; margin-left: -" + Math.round(parseInt(_fo.xiwidth, 10) / 2) + "px; margin-top: -" + Math.round(parseInt(_fo.xiheight, 10) / 2) + "px; width:" + _fo.xiwidth + "px; height:" + _fo.xiheight + "px;");
		var _b = document.getElementsByTagName("body")[0];
		var _c = UFO.createElement("div");
		_c.setAttribute("id", "xi-con");
		var _d = UFO.createElement("div");
		_d.setAttribute("id", "xi-dia");
		_c.appendChild(_d);
		_b.appendChild(_c);
		var _mmu = window.location;
		if (UFO.uaHas("xml") && UFO.uaHas("safari")) {
			var _mmd = document.getElementsByTagName("title")[0].firstChild.nodeValue = document.getElementsByTagName("title")[0].firstChild.nodeValue.slice(0, 47) + " - Flash Player Installation";
		}
		else {
			var _mmd = document.title = document.title.slice(0, 47) + " - Flash Player Installation";
		}
		var _mmp = UFO.pluginType == "ax" ? "ActiveX" : "PlugIn";
		var _uc = typeof _fo.xiurlcancel != "undefined" ? "&xiUrlCancel=" + _fo.xiurlcancel : "";
		var _uf = typeof _fo.xiurlfailed != "undefined" ? "&xiUrlFailed=" + _fo.xiurlfailed : "";
		UFO.foList["xi-dia"] = { movie:_fo.ximovie, width:_fo.xiwidth, height:_fo.xiheight, majorversion:"6", build:"65", flashvars:"MMredirectURL=" + _mmu + "&MMplayerType=" + _mmp + "&MMdoctitle=" + _mmd + _uc + _uf };
		UFO.writeSWF("xi-dia");
	},

	expressInstallCallback: function() {
		var _b = document.getElementsByTagName("body")[0];
		var _c = document.getElementById("xi-con");
		_b.removeChild(_c);
		UFO.createCSS("body", "height:auto; overflow:auto;");
		UFO.createCSS("html", "height:auto; overflow:auto;");
	},

	cleanupIELeaks: function() {
		var _o = document.getElementsByTagName("object");
		var _l = _o.length
		for (var i = 0; i < _l; i++) {
			_o[i].style.display = "none";
			for (var x in _o[i]) {
				if (typeof _o[i][x] == "function") {
					_o[i][x] = null;
				}
			}
		}
	}

};

if (typeof window.attachEvent != "undefined" && UFO.uaHas("ieWin")) {
	window.attachEvent("onunload", UFO.cleanupIELeaks);
}


// Site Rules
Event.addBehavior(
{
	'div.flashMovie': function() 
	{
		var first = this.firstChild;
		while (first.nodeType != 1)
		{
			first = first.nextSibling;
		}
		var args = first.getAttribute('value').split(',');
		if (!args) { return ;}

		var FO = 
		{
			movie: args[0], 
			width: args[1], 
			height: args[2], 
			majorversion: 6, 
			build: 0,
			xi:	'true',
			base: '.'
		};
		UFO.create(FO, this.id);

		/* Example HTML
		<div id="specialOfferStar1" class="flashMovie">
		<input type="hidden" value="../flash/star.swf,100,100"/>
		<p><a href="http://www.macromedia.com/go/getflashplayer"><img src="http://www.macromedia.com/images/shared/download_buttons/get_flash_player.gif" alt="Get macromedia Flash Player" style="border: none;" /></a></p>
		</div>
		*/
	}
});