// generic AJAX handler
function GetXmlHttpObject(handler){ 
	var objXmlHttp=null;
	if (navigator.userAgent.indexOf("MSIE")>=0)	{ 
		var strName="Msxml2.XMLHTTP";
		if (navigator.appVersion.indexOf("MSIE 5.5")>=0) {
			strName="Microsoft.XMLHTTP";
		} 
		try	{ 
			objXmlHttp=new ActiveXObject(strName);
			objXmlHttp.onreadystatechange=handler;
			return objXmlHttp;
		} catch(e) { 
			alert("Error. Scripting for ActiveX might be disabled");
			return;
		} 
	} 
	if (navigator.userAgent.indexOf("Mozilla")>=0) {
		objXmlHttp=new XMLHttpRequest();
		objXmlHttp.onload=handler;
		objXmlHttp.onerror=handler;
		return objXmlHttp;
	}
} 
function stateChanged(){ 
	if (xmlHttp.readyState==4 || xmlHttp.readyState=="complete"){
		strRet = xmlHttp.responseText;
		if(strRet == '') {
			// do we need to do anything?
		} else {
			return true;
		}
	}
}
function clearLoginReturn(){
	xmlHttp=GetXmlHttpObject(stateChanged);
	xmlHttp.open("GET", "/_include/auth/loginredirect.php" , true);
	xmlHttp.send(null);
}