// JavaScript Document

//var xmlHttpfunction showUser(str)
function showUser(str)
{ 
	//alert("ubhay");

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

function stateChanged() 
{ 
	if (xmlHttp.readyState==4 || xmlHttp.readyState=="complete")
 	{ 
		var i = xmlHttp.responseText.length
		//alert (i);
		//alert(xmlHttp.responseText);
		//document.getElementById("sponsorname").innerHTML=xmlHttp.responseText 
		if (i == 10)
		{
			alert ("User ID already taken");
			//document.formx.sponsorname.value=xmlHttp.responseText;
			document.formx.username.value="";
			document.formx.username.focus();
		}
	 } 
}

function GetXmlHttpObject()
{
	var xmlHttp=null;
	try
 	{
 // Firefox, Opera 8.0+, Safari
		 xmlHttp=new XMLHttpRequest();
 	}
	catch (e)
 	{
 		//Internet Explorer
 		try
 		 {
 			 xmlHttp=new ActiveXObject("Msxml2.XMLHTTP");
 		 }
 		catch (e)
  		{
 			 xmlHttp=new ActiveXObject("Microsoft.XMLHTTP");
  		}
 	}
	return xmlHttp;
}