function launch(nURL,winName){
        nheight = 600;
        nwidth  = 960;
        var cx = (screen.Width - nwidth)/2;
        var nFeature = "height=" + nheight + ",width=" + nwidth + ",left=" + cx + ",toolbar=no,location=0,directories=no,status=0,menubar=0,scrollbars=1,resizable=yes,top=0"
        newwin = open(nURL,"winName",nFeature);
   {newwin.top;
    newwin.focus();
}
}