function VideoHelpWindow() {
    MeinFenster =
    window.open(
    "EVI_VideoHelpWindow.htm", 
    "Zweitfenster", 
    "left=20,top=20,width=830,height=620,dependent=yes,scrollbars=yes,resizable=yes,status=no,menubar=no,toolbar=no");
    MeinFenster.focus();
    }