function newXMLHttpRequest() {
	var xmlreq = false;
	if (window.XMLHttpRequest) {
		xmlreq = new XMLHttpRequest();
	} else if (window.ActiveXObject) {
    		// Try ActiveX
		try { 
			xmlreq = new ActiveXObject("Msxml2.XMLHTTP");
		} catch (e1) { 
			// first method failed 
			try {
				xmlreq = new ActiveXObject("Microsoft.XMLHTTP");
			} catch (e2) {
				 // both methods failed 
			} 
		}
 	}
   	return xmlreq;
}

function getReadyStateHandler(req, responseXmlHandler,errorHandler) {
	return function () {
	if (req.readyState == 4) {
		if (req.status == 200) {
			responseXmlHandler(req.responseXML);
		}else{
			errorHandler(req.status);			
    	}
 	}
 	}
}