function Fenster_rechner(url)
{
Name=window.open(url,"Rechner","toolbar=no,scrollbars=yes,resizable=yes,width=625,height=550")
Name.focus();
}

function Fenster_video(url)
{
Name=window.open(url,"Video","toolbar=no,scrollbars=yes,resizable=yes,width=352,height=400")
Name.focus();
}