var cat_xmlHttp
function category(str,url)
{ 
	cat_xmlHttp=GetXmlHttpObject2()
	if (cat_xmlHttp==null)
	{
		alert ("Browser does not support HTTP Request")
		return
	} 
url=url+"?val="+str
url=url+"&sid="+Math.random()

cat_xmlHttp.onreadystatechange=stateChanged2
cat_xmlHttp.open("GET",url,true)
cat_xmlHttp.send(null)

}

function stateChanged2() 
{ 

if (cat_xmlHttp.readyState==4 || cat_xmlHttp.readyState=="complete")
{ 
var st = cat_xmlHttp.responseText;
document.getElementById('txtHint').innerHTML=st;
}
} 
function GetXmlHttpObject2()
{ 
	var objXMLHttp=null
	if (window.XMLHttpRequest)
	{
		objXMLHttp=new XMLHttpRequest()
	}
	else if (window.ActiveXObject)
	{
		objXMLHttp=new ActiveXObject("Microsoft.XMLHTTP")
	}
return objXMLHttp
}