function GetXmlHttpObject(handler)   
{   
   var objXMLHttp=null  
   if (window.XMLHttpRequest)   
   {   
       objXMLHttp=new XMLHttpRequest()   
   }   
   else if (window.ActiveXObject)   
   {   
       objXMLHttp=new ActiveXObject("Microsoft.XMLHTTP")   
   }   
   return objXMLHttp   
}   
  
function stateChanged()   
{   
   if (xmlHttp.readyState==4 || xmlHttp.readyState=="complete")   
   {   
           document.getElementById("txtResult").innerHTML= xmlHttp.responseText;   
   }   
   else {   
           //alert(xmlHttp.status);   
   }   
}   
  
// Will populate data based on input   
function htmlData(url)   
{
   if (url.length==0)   
   {   
       document.getElementById("txtResult").innerHTML="";   
       return;   
   }   
   xmlHttp=GetXmlHttpObject()   
   if (xmlHttp==null)   
   {   
       alert ("Browser does not support HTTP Request");   
       return;   
   }   

   xmlHttp.onreadystatechange=stateChanged;   
   xmlHttp.open("GET",url,true) ;   
   xmlHttp.send(null);   
}