function popupPDFReport(mylink, windowname) {
    if (!window.focus) return true;
    var width = 800;
    var height = 700;
    var left = parseInt((screen.availWidth / 2) - (width / 2));
    var top = parseInt((screen.availHeight / 2) - (height / 2));
    var windowFeatures = "width=" + width + ",height=" + height + ",status=no,resizable=yes,scrollbars=yes,menubar=no,toolbar=no,left=" + left + ",top=" + top + "screenX=" + left + ",screenY=" + top + ""
    var href;
    if (typeof (mylink) == 'string')
        href = mylink;
    else
        href = mylink.href;
    window.open(href, windowname, windowFeatures);
    return false;
}