/*  Prototype JavaScript framework, version 1.4.0



 *  (c) 2005 Sam Stephenson <sam@conio.net>



 *



 *  THIS FILE IS AUTOMATICALLY GENERATED. When sending patches, please diff



 *  against the source tree, available from the Prototype darcs repository.



 *



 *  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: '1.4.0',



  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 (property in source) {



    destination[property] = source[property];



  }



  return destination;



}







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;



  }



}







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;



  return function(event) {



    return __method.call(object, event || window.event);



  }



}







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() {



    setInterval(this.onTimerEvent.bind(this), this.frequency * 1000);



  },







  onTimerEvent: function() {



    if (!this.currentlyExecuting) {



      try {



        this.currentlyExecuting = true;



        this.callback();



      } finally {



        this.currentlyExecuting = false;



      }



    }



  }



}







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







function $() {



  var elements = new Array();







  for (var i = 0; i < arguments.length; i++) {



    var element = arguments[i];



    if (typeof element == 'string')



      element = document.getElementById(element);







    if (arguments.length == 1)



      return element;







    elements.push(element);



  }







  return elements;



}



Object.extend(String.prototype, {



  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(eval);



  },







  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('=');



      params[pair[0]] = pair[1];



      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() {



    return "'" + this.replace('\\', '\\\\').replace("'", '\\\'') + "'";



  }



});







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







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 = true;



    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 (value >= (result || value))



        result = value;



    });



    return result;



  },







  min: function(iterator) {



    var result;



    this.each(function(value, index) {



      value = (iterator || Prototype.K)(value, index);



      if (value <= (result || value))



        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) {



      iterator(value = collections.pluck(index));



      return value;



    });



  },







  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);







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.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();



  },







  shift: function() {



    var result = this[0];



    for (var i = 0; i < this.length - 1; i++)



      this[i] = this[i + 1];



    this.length--;



    return result;



  },







  inspect: function() {



    return '[' + this.map(Object.inspect).join(', ') + ']';



  }



});



var Hash = {



  _each: function(iterator) {



    for (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;



    do {



      iterator(value);



      value = value.succ();



    } while (this.include(value));



  },







  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 ActiveXObject('Msxml2.XMLHTTP')},



      function() {return new ActiveXObject('Microsoft.XMLHTTP')},



      function() {return new XMLHttpRequest()}



    ) || 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,



      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 += '&_=';







    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) {



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



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



      }







      this.setRequestHeaders();







      var body = this.options.postBody ? this.options.postBody : parameters;



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







    } catch (e) {



      this.dispatchException(e);



    }



  },







  setRequestHeaders: function() {



    var requestHeaders =



      ['X-Requested-With', 'XMLHttpRequest',



       'X-Prototype-Version', Prototype.Version];







    if (this.options.method == 'post') {



      requestHeaders.push('Content-type',



        'application/x-www-form-urlencoded');







      /* 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.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);



  }



});



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(child);



    return elements;



  });



}







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







if (!window.Element) {



  var Element = new Object();



}







Object.extend(Element, {



  visible: function(element) {



    return $(element).style.display != 'none';



  },







  toggle: function() {



    for (var i = 0; i < arguments.length; i++) {



      var element = $(arguments[i]);



      Element[Element.visible(element) ? 'hide' : 'show'](element);



    }



  },







  hide: function() {



    for (var i = 0; i < arguments.length; i++) {



      var element = $(arguments[i]);



      element.style.display = 'none';



    }



  },







  show: function() {



    for (var i = 0; i < arguments.length; i++) {



      var element = $(arguments[i]);



      element.style.display = '';



    }



  },







  remove: function(element) {



    element = $(element);



    element.parentNode.removeChild(element);



  },







  update: function(element, html) {



    $(element).innerHTML = html.stripScripts();



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



  },







  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;



    return Element.classNames(element).add(className);



  },







  removeClassName: function(element, className) {



    if (!(element = $(element))) return;



    return Element.classNames(element).remove(className);



  },







  // removes whitespace-only text node children



  cleanWhitespace: function(element) {



    element = $(element);



    for (var i = 0; i < element.childNodes.length; i++) {



      var node = element.childNodes[i];



      if (node.nodeType == 3 && !/\S/.test(node.nodeValue))



        Element.remove(node);



    }



  },







  empty: function(element) {



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



  },







  scrollTo: function(element) {



    element = $(element);



    var x = element.x ? element.x : element.offsetLeft,



        y = element.y ? element.y : element.offsetTop;



    window.scrollTo(x, y);



  },







  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 (name in style)



      element.style[name.camelize()] = style[name];



  },







  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;



      }



    }



  },







  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 = '';



    }



  },







  makeClipping: function(element) {



    element = $(element);



    if (element._overflow) return;



    element._overflow = element.style.overflow;



    if ((Element.getStyle(element, 'overflow') || 'visible') != 'hidden')



      element.style.overflow = 'hidden';



  },







  undoClipping: function(element) {



    element = $(element);



    if (element._overflow) return;



    element.style.overflow = element._overflow;



    element._overflow = undefined;



  }



});







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) {



        if (this.element.tagName.toLowerCase() == 'tbody') {



          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 Field = {



  clear: function() {



    for (var i = 0; i < arguments.length; i++)



      $(arguments[i]).value = '';



  },







  focus: function(element) {



    $(element).focus();



  },







  present: function() {



    for (var i = 0; i < arguments.length; i++)



      if ($(arguments[i]).value == '') return false;



    return true;



  },







  select: function(element) {



    $(element).select();



  },







  activate: function(element) {



    element = $(element);



    element.focus();



    if (element.select)



      element.select();



  }



}







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







var Form = {



  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 (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) {



    var elements = Form.getElements(form);



    for (var i = 0; i < elements.length; i++) {



      var element = elements[i];



      element.blur();



      element.disabled = 'true';



    }



  },







  enable: function(form) {



    var elements = Form.getElements(form);



    for (var i = 0; i < elements.length; i++) {



      var element = elements[i];



      element.disabled = '';



    }



  },







  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) {



    Field.activate(Form.findFirstElement(form));



  },







  reset: function(form) {



    $(form).reset();



  }



}







Form.Element = {



  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];



  }



}







Form.Element.Serializers = {



  input: function(element) {



    switch (element.type.toLowerCase()) {



      case 'submit':



      case 'hidden':



      case 'password':



      case 'text':



        return Form.Element.Serializers.textarea(element);



      case 'checkbox':



      case 'radio':



        return Form.Element.Serializers.inputSelector(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;



      if (!value && !('value' in opt))



        value = opt.text;



    }



    return [element.name, value];



  },







  selectMany: function(element) {



    var value = new Array();



    for (var i = 0; i < element.length; i++) {



      var opt = element.options[i];



      if (opt.selected) {



        var optValue = opt.value;



        if (!optValue && !('value' in opt))



          optValue = opt.text;



        value.push(optValue);



      }



    }



    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;



        case 'password':



        case 'text':



        case 'textarea':



        case 'select-one':



        case 'select-multiple':



          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,







  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) {



    var element = $(element);



    useCapture = useCapture || false;







    if (name == 'keypress' &&



        (navigator.appVersion.match(/Konqueror|Safari|KHTML/)



        || element.attachEvent))



      name = 'keydown';







    this._observeAndCache(element, name, observer, useCapture);



  },







  stopObserving: function(element, name, observer, useCapture) {



    var 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) {



      element.detachEvent('on' + name, observer);



    }



  }



});







/* prevent memory leaks in IE */



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;



  },







  clone: function(source, target) {



    source = $(source);



    target = $(target);



    target.style.position = 'absolute';



    var offsets = this.cumulativeOffset(source);



    target.style.top    = offsets[1] + 'px';



    target.style.left   = offsets[0] + 'px';



    target.style.width  = source.offsetWidth + 'px';



    target.style.height = source.offsetHeight + 'px';



  },







  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 {



      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];



  }



}