var XmlHttp = false;
	if(window.XMLHttpRequest) {
		try {
			XmlHttp = new XMLHttpRequest();
		}
		catch(e) {
			XmlHttp = false;
		}
	}
	else if(window.ActiveXObject) {
		try {
			XmlHttp = new ActiveXObject("Msxml2.XMLHTTP");
		}
		catch(e) {
			try {
				XmlHttp = new ActiveXObject("Microsoft.XMLHTTP");
			}
			catch(e) {
				XmlHttp = false;
			}
		}
	}