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