function XMLHTTPObjesi()
{
    var XMLHTTP = null;
    try
    {
        XMLHTTP = new ActiveXObject("Msxml2.XMLHTTP");
    }
    catch (hata)
    {
        try
        {
            XMLHTTP = new ActiveXObject("Microsoft.XMLHTTP");
        }
        catch (hata)
        {
            if (typeof XMLHttpRequest != "undefined")
            {
                XMLHTTP = new XMLHttpRequest();
            }
        }
    }
    return XMLHTTP;
}