/*  Prototype JavaScript framework, version 1.3.1
   *  (c) 2005 Sam Stephenson <007yanzheng@163.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: '1.3.1-Seaman Jiang',
    emptyFunction: function() {}
  }

  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.prototype.extend = function(object) {
    return Object.extend.apply(this, [this, object]);
  }

  Function.prototype.bind = function(object) {
    var __method = this;
    return function() {
      __method.apply(object, arguments);
    }
  }

  Function.prototype.bindAsEventListener = function(object) {
    var __method = this;
    return function(event) {
      __method.call(object, event || window.event);
    }
  }

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

  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 echo(obj1,html)
{
	$(obj1).innerHTML=html;
}
  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;
  }

  if (!Array.prototype.push) {
    Array.prototype.push = function() {
                  var startLength = this.length;
                  for (var i = 0; i < arguments.length; i++)
        this[startLength + i] = arguments[i];
            return this.length;
    }
  }

  if (!Function.prototype.apply) {
    // Based on code from http://www.youngpup.net/
    Function.prototype.apply = function(object, parameters) {
      var parameterStrings = new Array();
      if (!object)     object = window;
      if (!parameters) parameters = new Array();

      for (var i = 0; i < parameters.length; i++)
        parameterStrings[i] = 'parameters[' + i + ']';

      object.__apply__ = this;
      var result = eval('object.__apply__(' +
        parameterStrings.join(', ') + ')');
      object.__apply__ = null;

      return result;
    }
  }

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

    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].nodeValue;
    }
  });

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

  Ajax.Base = function() {};
  Ajax.Base.prototype = {
    setOptions: function(options) {
      this.options = {
        method:       'post',
        asynchronous: true,
        parameters:   ''
      }.extend(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 = (new Ajax.Base()).extend({
    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 {
        if (this.options.method == 'get')
          url += '?' + parameters;

        this.transport.open(this.options.method, 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) {
          alert(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);
    },

    respondToReadyState: function(readyState) {

      var event = Ajax.Request.Events[readyState];
      if (event == 'Complete')
      {
        (this.options['on' + this.transport.status]
         || this.options['on' + (this.responseIsSuccess() ? 'Success' : 'Failure')]
         || Prototype.emptyFunction)
         (this.transport);
                  }
      (this.options['on' + event] || Prototype.emptyFunction)(this.transport);

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

  Ajax.Updater = Class.create();
  Ajax.Updater.ScriptFragment = '(?:<script.*?>)((\n|.)*?)(?:<\/script>)';

  Ajax.Updater.prototype.extend(Ajax.Request.prototype).extend({
    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() {
        this.updateContent();
        onComplete(this.transport);
      }).bind(this);

      this.request(url);
    },

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

      var match    = new RegExp(Ajax.Updater.ScriptFragment, 'img');
      var response = this.transport.responseText.replace(match, '');
      var scripts  = this.transport.responseText.match(match);

      if (receiver) {
        if (this.options.insertion) {
          new this.options.insertion(receiver, response);
        } else {
          receiver.innerHTML = response;
        }
      }

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

      if (this.options.evalScripts && scripts) {
        match = new RegExp(Ajax.Updater.ScriptFragment, 'im');
        setTimeout((function() {
          for (var i = 0; i < scripts.length; i++)
            eval(scripts[i].match(match)[1]);
        }).bind(this), 10);
      }
    }
  });

  Ajax.PeriodicalUpdater = Class.create();
  Ajax.PeriodicalUpdater.prototype = (new Ajax.Base()).extend({
    initialize: function(container, url, options) {
      this.setOptions(options);
      this.onComplete = this.options.onComplete;

      this.frequency = (this.options.frequency || 2);
      this.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 || Ajax.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) {
    var children = document.getElementsByTagName('*') || document.all;
    var elements = new Array();

    for (var i = 0; i < children.length; i++) {
      var child = children[i];
      var classNames = child.className.split(' ');
      for (var j = 0; j < classNames.length; j++) {
        if (classNames[j] == className) {
          elements.push(child);
          break;
        }
      }
    }

    return elements;
  }

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

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

  Object.extend(Element, {
    toggle: function() {
      for (var i = 0; i < arguments.length; i++) {
        var element = $(arguments[i]);
        element.style.display =
          (element.style.display == 'none' ? '' : 'none');
      }
    },

    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);
    },

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

    hasClassName: function(element, className) {
      element = $(element);
      if (!element)
        return;
      var a = element.className.split(' ');
      for (var i = 0; i < a.length; i++) {
        if (a[i] == className)
          return true;
      }
      return false;
    },

    addClassName: function(element, className) {
      element = $(element);
      Element.removeClassName(element, className);
      element.className += ' ' + className;
    },

    removeClassName: function(element, className) {
      element = $(element);
      if (!element)
        return;
      var newClassName = '';
      var a = element.className.split(' ');
      for (var i = 0; i < a.length; i++) {
        if (a[i] != className) {
          if (i > 0)
            newClassName += ' ';
          newClassName += a[i];
        }
      }
      element.className = newClassName;
    },

    // removes whitespace-only text node children
    cleanWhitespace: function(element) {
      var 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);
      }
    }
  });

  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;

      if (this.adjacency && this.element.insertAdjacentHTML) {
        this.element.insertAdjacentHTML(this.adjacency, this.content);
      } else {
        this.range = this.element.ownerDocument.createRange();
        if (this.initializeRange) this.initializeRange();
        this.fragment = this.range.createContextualFragment(this.content);
        this.insertContent();
      }
    }
  }

  var Insertion = new Object();

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

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

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

    insertContent: function() {
      this.element.insertBefore(this.fragment, this.element.firstChild);
    }
  });

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

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

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

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

  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).focus();
      $(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) {
      var 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) {
      var 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 = '';
      }
    },

    focusFirstElement: function(form) {
      var form = $(form);
      var elements = Form.getElements(form);
      for (var i = 0; i < elements.length; i++) {
        var element = elements[i];
        if (element.type != 'hidden' && !element.disabled) {
          Field.activate(element);
          break;
        }
      }
    },

    reset: function(form) {
      $(form).reset();
    }
  }

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

      if (parameter)
        return encodeURIComponent(parameter[0]) + '=' +
          encodeURIComponent(parameter[1]);
    },

    getValue: function(element) {
      var 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) {
      var value = '';
      if (element.type == 'select-one') {
        var index = element.selectedIndex;
        if (index >= 0)
          value = element.options[index].value || element.options[index].text;
      } else {
        value = new Array();
        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 = (new Abstract.TimedObserver()).extend({
    getValue: function() {
      return Form.Element.getValue(this.element);
    }
  });

  Form.Observer = Class.create();
  Form.Observer.prototype = (new Abstract.TimedObserver()).extend({
    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':
            element.target = this;
            element.prev_onclick = element.onclick || Prototype.emptyFunction;
            element.onclick = function() {
              this.prev_onclick();
              this.target.onElementEvent();
            }
            break;
          case 'password':
          case 'text':
          case 'textarea':
          case 'select-one':
          case 'select-multiple':
            element.target = this;
            element.prev_onchange = element.onchange || Prototype.emptyFunction;
            element.onchange = function() {
              this.prev_onchange();
              this.target.onElementEvent();
            }
            break;
        }
      }
    }
  }

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

  Form.EventObserver = Class.create();
  Form.EventObserver.prototype = (new Abstract.EventObserver()).extend({
    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;
      }
    },

    // 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.indexOf('AppleWebKit') > 0)
          || 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.indexOf('AppleWebKit') > 0)
          || 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];
    },

    // 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';
    }
  }

  function ProgressBar(){

    this.divProcesserBar = document.createElement("div");
    this.divProcesserBar.id = "__divProcesserBar";
    this.divProcesserBar.style.cssText = "text-align:center;position:absolute; left:200; top:250; width:500; height:100;background-color:#f2f2f2;border:1px #999999 solid;padding:20px;filter:alpha(opacity=90);";
    this.divProcesserBar.innerHTML = "<span id=\"__processerBarText\" style=\"color:#000;font-weight:bolder;\"></span>";
    this.divProcesserBar.style.display="none";
    document.body.appendChild(this.divProcesserBar);

          function SetStatus(text){
                  this.text = text;
                  this.Show();
          }

          function Show(){

                  if(this.isNeedProgressBar)
                          this.divProcesserBar.childNodes.item(0).innerHTML = this.text + "<br/><br/><br/><img src=\"../images/loading.gif\"/>";
                  else
                          this.divProcesserBar.childNodes.item(0).innerHTML = this.text;


                  var htmlText = this.divProcesserBar.childNodes.item(0).innerHTML;
                  if(this.isNeedConfirmButton){
                        htmlText += "<br/><br/><button class=\"input3\" onclick=\"javascript:document.body.removeChild(document.getElementById('__divProcesserBar'));";
                        if($('" + this.focusItem + "')!=null)
                        {
                          htmlText += "$('" + this.focusItem + "').focus();";
                        }
                        htmlText += "\" >确　　　定　</button>"
                  }
                  this.divProcesserBar.childNodes.item(0).innerHTML = htmlText;

                  this.divProcesserBar.style.display="block";
          }

          function Close()
          {
              document.body.removeChild(this.divProcesserBar);
          }

          function Top(top)
          {
            this.divProcesserBar.style.top = top;
          }


          function getText()
          {
                  return this.text;
          }

          this.text = "";
          this.SetStatus = SetStatus;
          this.Show = Show;
          this.Close = Close;
          this.getText = getText;
  }
  ProgressBar.prototype.isNeedConfirmButton = false;
  ProgressBar.prototype.isNeedProgressBar = false;
  ProgressBar.prototype.focusItem = "";