/* Return XMLHTTP Object */
/* 2008 Goodup.net */
function GetXmlHttp()
{
    if (window.XMLHttpRequest)
    {
        http_request = new XMLHttpRequest();
        if (http_request.overrideMimeType)
        {
            http_request.overrideMimeType("text/xml");
        }
    }
    else if (window.ActiveXObject)
    {
        try
        {
            http_request = new ActiveXObject("Mscml2.XMLHTTP");
        }
        catch(e)
        {
            try
            {
                http_request = new ActiveXObject("Microsoft.XMLHTTP");
            }
            catch(ex)
            {}
        }
    }
    if(!http_request)
    {
        return false;
    }

    return http_request;
}