function avatar(url) {
 NeuesFenster =
 window.open(url, 'avatar', 'width=600,height=400,left=60,top=40,scrollbars=yes,dependent=yes,resizable=yes');
 NeuesFenster.focus();
}
function abilder(url) {
 NeuesFenster =
 window.open(url, 'abilder', 'width=950,height=660,left=60,top=40,scrollbars=yes,dependent=yes,resizable=yes');
 NeuesFenster.focus();
}