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, qStr)  
{  
//alert("hi");
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);  
}  
function validatesearch()
{
	var s = document.search;
	 
	if(s.mainCategory.value=="select"){
     alert('Please select any category');
	 s.mainCategory.focus();
	 return false;
  }  
  return true;
}