var xmlHttp2; 
function selectUsername(pid)
{
	if (window.ActiveXObject) {
		xmlHttp2 = new ActiveXObject("Microsoft.XMLHTTP");
	}
	else if (window.XMLHttpRequest) {
		xmlHttp2 = new XMLHttpRequest();                
	}
	if (xmlHttp2==null)
	{
		alert ("Your browser does not support AJAX!");
		return;
	}
	var url;
	url="scripts/QUERY_Username.php?pid="+pid;
	xmlHttp2.open("GET",url,true);
	xmlHttp2.onreadystatechange=stateChanged2;
	xmlHttp2.send(null);
}
	
function stateChanged2() 
{
	if (xmlHttp2.readyState==4)
	{
		if(xmlHttp2.responseText!="") {
			document.getElementById("notice").innerHTML="*not available";
		} else {
			document.getElementById("notice").innerHTML="*available";
		}
	} else {
		document.getElementById("notice").innerHTML='';
	}
}
	
function GetXmlHttpObject2()
{
	var xmlHttp2=null;
	try
	{
		// Firefox, Opera 8.0+, Safari
		xmlHttp2=new XMLHttpRequest();
	}
	catch (e)
	{
	// Internet Explorer
		try
		{
			xmlHttp2=new ActiveXObject("Msxml2.XMLHTTP");
		}
		catch (e)
		{
			xmlHttp2=new ActiveXObject("Microsoft.XMLHTTP");
		}
	}
	return xmlHttp2;
}