var xmlHttp

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

// Check Email Address

function userEmailChk(val,site)
{ 
//alert("hello")
xmlHttp=GetXmlHttpObject()
if (xmlHttp==null)
{
alert ("Browser does not support HTTP Request")
return
} 

var url=site+"/modules/register/chkemail.php"
url=url+"?email="+val
url=url+"&sid="+Math.random()
xmlHttp.onreadystatechange=chkemailavailability 
xmlHttp.open("GET",url,true)
xmlHttp.send(null)
}
function chkemailavailability () 
{ 
if (xmlHttp.readyState==4 || xmlHttp.readyState=="complete")
{ 
	if(xmlHttp.responseText==1)
	{
	  document.getElementById("usrEmail").innerHTML="<i>Oops! Looks like that Email Address is already taken. Please try another.</i>";
	  document.getElementById("email").value="";
	  document.getElementById("email").focus;
	}else if(xmlHttp.responseText==2)
	{
		document.getElementById("usrEmail").innerHTML=""; 
	}else if(xmlHttp.responseText==3)
	{
		document.getElementById("usrEmail").style.display="none"; 
	}
} 
} 

//User name availability

function userNameChk(val,site)
{
xmlHttp=GetXmlHttpObject()
if (xmlHttp==null)
{
alert ("Browser does not support HTTP Request");
return
} 

var url=site+"/modules/register/check_username.php"
url=url+"?usr="+val
url=url+"&sid="+Math.random()

xmlHttp.onreadystatechange=chkusravailability 
xmlHttp.open("GET",url,true)
xmlHttp.send(null)
}
function chkusravailability (){ 
	if (xmlHttp.readyState==4 || xmlHttp.readyState=="complete"){ 
		
		if(xmlHttp.responseText==1)
		{
		  document.getElementById("usrName1").innerHTML="<i>Oops! Looks like that Username is already taken. Please enter another one.</i>";
		  document.getElementById("username").value="";
		  document.getElementById("username").focus;
		}else if(xmlHttp.responseText==2)
		{
			document.getElementById("usrName1").innerHTML=""; 
		}else if(xmlHttp.responseText==3)
		{
		   document.getElementById("usrName1").style.display="none"; 
		}
	} 
}