function getXmlHttpObject(){
    var xmlhttp;

    /*@cc_on
    @if (@_jscript_version >= 5)
    try{
    xmlhttp = new ActiveXObject("Msxml2.XMLHTTP");
    }
    catch (e){
    try{
    xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");
    }
    catch (e){
    xmlhttp = false;
    }
    }
    @else
    xmlhttp = false;
    @end @*/

    if (!xmlhttp && typeof XMLHttpRequest != 'undefined'){
        try{
            xmlhttp = new XMLHttpRequest();
        }
        catch (e){
            xmlhttp = false;
        }
    }
    return xmlhttp;
}