function popup (url) {
 fenster = window.open(url, "Popupfenster", "width=862,height=709,resizable=no");
 fenster.focus();
 return false;
}

function popup2 (url2) {
 fenster = window.open(url2, "Popupfenster2", "width=862,height=709,resizable=no");
 fenster.focus();
 return false;
}