function createRequestObject() {
		var http_request;
        if (window.XMLHttpRequest) { // Mozilla, Safari,...
            http_request = new XMLHttpRequest();
        } else if (window.ActiveXObject) { // IE
            try {
                http_request = new ActiveXObject("Msxml2.XMLHTTP");
            } catch (e) {
                try {
                    http_request = new ActiveXObject("Microsoft.XMLHTTP");
                } catch (e) { 
						//alert(e);
					}
            }
        }
        if (!http_request) {
            //alert("Giving up :( Cannot create an XMLHTTP instance");
            return false;
        }
        return http_request;
}