function LaunchPresentation(bChromeless, bResize, url)
    {
    var nWidth = screen.availWidth;
    var nHeight = screen.availHeight;
    if (nWidth > 820)
    {
    nWidth = 980;
    nHeight = 640;
    }
    var strOptions = "width=" + nWidth +",height=" + nHeight;
    if (bResize)
    {
    strOptions += ",resizable=yes"
    }
    if (bChromeless)
    {
    strOptions += ", status=0, toolbar=0, location=0, menubar=0, scrollbars=0";
    }
    else
    {
    strOptions += ", status=1, toolbar=1, location=1, menubar=1, scrollbars=1";
    }
    window.open(url , "_blank", strOptions);
    }