function GetXMLHttp() {
/*    if(navigator.appName == "Microsoft Internet Explorer") {
        xmlHttp = new ActiveXObject("Microsoft.XMLHTTP");
    }
    else {
        xmlHttp = new XMLHttpRequest();
    }
    return xmlHttp;
} */

	var xmlHttp;
	try {
			xmlHttp = new XMLHttpRequest();
	}
	catch(ee) {
			try {
					xmlHttp = new ActiveXObject("Msxm12.XMLHTTP");
			}
			catch(e) {
					try {
							xmlHttp = new ActiveXObject("Microsoft.XMLHTTP");
					}
					catch(e) {
							xmlHttp = false;
					}
			}
	}
	return xmlHttp;
}

var xmlRequest = GetXMLHttp();