function popup(url)
{
window.open(url, 'Fenster1','resizable=yes,scrollbars=yes,toolbar=no,status=no,menubar=no,location=no,height=670,width=850');
}
function popupmail(url)

{
window.open(url, 'Fenster1','resizable=no,scrollbars=no,toolbar=no,status=no,top=150,left=250,menubar=no ,location=no,height=410,width=400');
}