function createXMLHttpRequest(cbFunc) {
	var XMLhttpObject = null;
	try {
		XMLhttpObject = new XMLHttpRequest();
	} catch(e) {
		try {
			XMLhttpObject = new ActiveXObject("Msxml2.XMLHTTP");
		} catch(e) {
			try {
				XMLhttpObject = new ActiveXObject("Microsoft.XMLHTTP");
			} catch(e) {
				return null;
			}
		}
	}
	if (XMLhttpObject) {
		XMLhttpObject.onreadystatechange = cbFunc;
		return XMLhttpObject;
	}
}