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); 
   }
 }
   
   
function htmlData(url, qStr){
 
 if (url.length==0)   { 
   document.getElementById("txtResult").innerHTML="";
   return;
 }
 
 xmlHttp=GetXmlHttpObject();
 
 if (xmlHttp==null)   { 
  alert ("Browser does not support HTTP Request");
  return;
 }
 
 url=url+"?"+qStr;
 url=url+"&sid="+Math.random();
 xmlHttp.onreadystatechange=stateChanged;
 xmlHttp.open("GET",url,true) ;
 xmlHttp.send(null);
}