var xmlHttp

function showurl(str)
{ 
xmlHttp=GetXmlHttpObject()
if (xmlHttp==null)
{
alert ("Browser does not support HTTP Request")
return
} 
var url="validedurl.php"
url=url+"?q="+str
url=url+"&sid="+Math.random()
xmlHttp.onreadystatechange=stateChanged2
xmlHttp.open("GET",url,true)
xmlHttp.send(null)

}

function stateChanged2() 
{ 
if (xmlHttp.readyState==4 || xmlHttp.readyState=="complete")
{ 
//document.getElementById("displayerr").innerHTML=xmlHttp.responseText 
	
if(xmlHttp.responseText=="<font color='red'>not valid</font>")
{
	document.getElementById("dbkcheck").value="10";
	//document.getElementById("txtusername").focus();
}
else
{
	document.getElementById("dbkcheck").value="70";
}

} 
} 

function GetXmlHttpObject()
{ 
var objXMLHttp=null
if (window.XMLHttpRequest)
{
objXMLHttp=new XMLHttpRequest()
}
else if (window.ActiveXObject)
{
objXMLHttp=new ActiveXObject("Microsoft.XMLHTTP")
}
return objXMLHttp
}