function getXMLHTTPObject()
{
    var xmlHttp = false;
    try 
    {
        xmlHttp = new ActiveXObject("Msxml2.XMLHTTP");
    } 
    catch (e) 
    {
        try 
        {
            xmlHttp = new ActiveXObject("Microsoft.XMLHTTP");
        }
        catch (e2) 
        {
            try
            {
                xmlHttp = new XMLHttpRequest();
            }
            catch(e3)
            {
                xmlHttp = false;
            }    
        }
    }
    return xmlHttp;
}