// JavaScript Document

function getXMLHttp() {
    var XMLHttp = null;
    if (window.XMLHttpRequest) {
        try {
            XMLHttp = new XMLHttpRequest();
        } catch (e) { }
    } else if (window.ActiveXObject) {
        try {
            XMLHttp = new ActiveXObject("Msxml2.XMLHTTP");
        } catch (e) {
            try {
                XMLHttp = new ActiveXObject("Microsoft.XMLHTTP");
            } catch (e) { }
        }
    }
    return XMLHttp;
}