// AJAX XMLHTTPRequest Object

function getXMLHTTPRequest() {
	try {
		req=new XMLHttpRequest();
	} catch(err1) {
		try {
			req=new ActiveXObject("Msxml2.XMLHTTP");
		} catch(err2) {
			try {
				req=new ActiveXObject("Microsoft.XMLHTTP");
			} catch(err3) {
				req=false;
			}
		}
	}
	return req;
}
var ajaxRequest=getXMLHTTPRequest();