function ajaxObject(url,callbackFunction){
   var that=this;
   this.updating=false;
   this.abort=function(){
                if(that.updating){
                  that.updating=false;
                  that.AJAX.abort();
                  that.AJAX=null;
                }
              }
   this.update=function(passData,postMethod){
                 if(that.updating){return false;}
                 that.AJAX=null;
                 if(window.XMLHttpRequest){that.AJAX=new XMLHttpRequest();}
                 else{that.AJAX=new ActiveXObject("Microsoft.XMLHTTP");}
                 if(that.AJAX==null){return false;}
                 else{that.AJAX.onreadystatechange=function(){
                                                     if(that.AJAX.readyState==4){
                                                       that.updating=false;
                                                       if (that.AJAX.responseText != ""){
                                                         that.callback(that.AJAX.responseText,that.AJAX.status,that.AJAX.responseXML);
                                                       }
                                                       else{return;}
                                                       that.AJAX=null;
                                                     }
                                                   }
                   that.updating=new Date();
                   if(/post/i.test(postMethod)){
                     var uri=urlCall+'?'+that.updating.getTime();
                     that.AJAX.open("POST", uri, true);
                     that.AJAX.setRequestHeader("Content-type","application/x-www-form-urlencoded");
                     that.AJAX.setRequestHeader("Content-Length",passData.length);
                     that.AJAX.send(passData);
                   }
                   else{
                     var uri=urlCall+'?'+passData+'&timestamp='+(that.updating.getTime());
                     that.AJAX.open("GET", uri, true);
                     that.AJAX.send(null);
                   }
                   return true;
                 }
               }
   var urlCall=url;
   this.callback=callbackFunction||function(){};
 }
 
 function processAjax(responseText,responseStatus){
   if(responseStatus==200){
     handleJSON(responseText);
   }
   else{alert(responseStatus+' -- Error Processing Request');}
 }