ÿþÿþfunction AjaxComponent(URL, URLsuffix, callbackFunction)  {
    this.URL = URL;
    this.URLsuffix = URLsuffix;
    this.callbackFunction = callbackFunction;
    this.debug = false;
    
    this.aSync = true;
    this.xmlhttp = null;
    
    this.responseRecived = false; 
    this.responseText = "";
}

AjaxComponent.prototype.initiateWatch = function()
{
    this.xmlhttp=null;
    // code for Mozilla, etc.
    if (window.XMLHttpRequest) {
      this.xmlhttp=new XMLHttpRequest();
    }
    // code for IE
    else if (window.ActiveXObject) {
      this.xmlhttp=new ActiveXObject("Microsoft.XMLHTTP");
    }
    
    if (this.xmlhttp!=null) {  /* 
      this.xmlhttp.onreadystatechange=this.state_Change.bind(this);
      this.xmlhttp.open("POST",this.URL,this.aSync);
      this.xmlhttp.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
      this.xmlhttp.setRequestHeader("Content-length", this.URLsuffix.length);
      this.xmlhttp.setRequestHeader("Connection", "close");
      this.xmlhttp.send(this.URLsuffix);  */
      this.xmlhttp.onreadystatechange=this.state_Change.bind(this);
      this.xmlhttp.open("GET",this.URL + this.URLsuffix,this.aSync);
      this.xmlhttp.send(null);   
    }
    else
  {
      if(this.debug) {
          alert("Your browser does not support XMLHTTP.");
      }
  }
}

AjaxComponent.prototype.state_Change = function()
{
// if xmlhttp shows "loaded"
if (this.xmlhttp.readyState==4)
  {
  // if "OK"
  if (this.xmlhttp.status==200)
    {
        this.responseText = this.xmlhttp.responseText;
        this.responseRecived = true; 
        this.callbackFunction();
    }
  else
    {
        if(this.debug) {
             alert("Problem retrieving XML data:" + this.xmlhttp.statusText);
         }
    }
  }
}

function toArray(pseudoArray) {
     var result = [];
     for (var i = 0; i < pseudoArray.length; i++)
         result.push(pseudoArray[i]);
     return result;
}

Function.prototype.bind = function (object) {
     var method = this;
     var oldArguments = toArray(arguments).slice(1);
     return function () {
         var newArguments = toArray(arguments);
         return method.apply(object, oldArguments.concat(newArguments));
     };
}

function CCallback(Url, bAsync)
{
  this.Url = Url;
  this.responseText = "";
  this.bReady = false;
  this.bInit = false;
  this.bUpdateWaiting = false;

  if (window.XMLHttpRequest)  {
    this.CallBackObj = new XMLHttpRequest();
    this.bReady = true;
    this.bInit = true;
  } else {
    if (window.ActiveXObject) {
      try {
        this.CallBackObj = new ActiveXObject("Msxml2.XMLHTTP");
        this.bReady = true;
        this.bInit = true;
      }
      catch (e) {
        try {
          this.CallBackObj = new ActiveXObject("Microsoft.XMLHTTP");
          this.bReady = true;
          this.bInit = true;
        }
        catch (e) {
          return;
        }
      }
    }
  }
}

CCallback.prototype.StateChanged = function()
{
  if (this.CallBackObj.readyState != 4 || this.CallBackObj.status != 200) {
    return;
  }

  var Result = this.CallBackObj.responseText;
  
  if(Result != '') {
    document.getElementById(Result).style.display = 'none';
  }
  
  this.bReady = true;
  
  if (this.bUpdateWaiting) {
    this.bUpdateWaiting = false;
    this.GetData();
  }
}

CCallback.prototype.Get = function(UrlSuffix)
{
  this.UrlSuffix = UrlSuffix;
  this.GetData();
}

CCallback.prototype.GetData = function()
{
  if (!this.bInit) {
    return;
  }
  
  if (!this.bReady) {
    this.bUpdateWaiting = true;
    return;
  }
  
  this.bReady = false;
  
  this.CallBackObj.open('POST', this.Url, true);
  this.CallBackObj.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
  this.CallBackObj.setRequestHeader("Content-length", this.UrlSuffix.length);
  this.CallBackObj.setRequestHeader("Connection", "close");
  
  var _this = this; // set the var so we can scope the callback
  this.CallBackObj.onreadystatechange = function() {_this.StateChanged()};
  
  this.CallBackObj.send(this.UrlSuffix);
}