function NewWindow(mypage, myname, w, h, scroll, resize) {
    var winl = (screen.width - w) / 2;
    var wint = (screen.height - h) / 2;
    winprops = 'height='+h+',width='+w+',top='+wint+',left='+winl+',scrollbars='+scroll+',resizable='+resize+',toolbar=no,location=no,status=no,menubar=no,dependent=no';
    win = window.open(mypage, myname, winprops);
    if (parseInt(navigator.appVersion) >= 4) { win.window.focus(); }
}