//saved as ajax.js
function gfAjax() { // v1.0; 2009-04-24
	// goal: output the AJAX object
	var objAjax;
	try { // Mozilla (Firefox & Flock), Opera, WebKit (Safari & Chrome), IE 7+
		objAjax = new XMLHttpRequest();
	} catch (strErrorMsg) {
		// if an error occurs, then try again
		try { // IE 6
			objAjax = new ActiveXObject("Msxml2.XMLHTTP");
		} catch (strErrorMsg) {
			try { // IE 5.5
				objAjax = new ActiveXObject("Microsoft.XMLHTTP");
			} catch (strErrorMsg) {
				// Your browser does not support AJAX! Please upgrade.
				return false;
			}
		}
	}
	return objAjax;
}