var xmlHttp

var url;

function name_validation(siteurl,username){
	 xmlHttp=GetXmlHttpObject()
	 
if (xmlHttp==null)
{
alert ("Browser does not support HTTP Request")
return
} 
var url=siteurl+"captcha/ajaxcheck.php"
url=url+"?username="+username
url=url+"&usercheck=check"
url=url+"&sid="+Math.random()
//url=url+"&action="+action
xmlHttp.onreadystatechange=stateChanged 
xmlHttp.open("GET",url,true)
xmlHttp.send(null)     
        
    }

function stateChanged() 
{ 

if( xmlHttp.readyState < 4 || xmlHttp.readyState!="Complete" )
{
//	document.getElementById("showstate").innerHTML = "<image src='images/indicator.gif'>";
}

if (xmlHttp.readyState==4 || xmlHttp.readyState=="Complete")
{ 
//alert( xmlHttp.responseText);
document.getElementById("checkusername").innerHTML = xmlHttp.responseText;
} 
} 

function GetXmlHttpObject()
{

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