function zoom(){
window.open('','zoomwin','scrollbars=no,toolbar=no,location=no,directories=no,status=no,copyhistory=no,width=250,height=95,resizable=yes');
}
function pdf(){
window.open('','zoomwin','toolbar=no,location=no,directories=no,status=yes,copyhistory=no,width=780,height=550,resizable=yes');
}
function nfenster(h, w)
{
window.open('','nf','height='+h+',width='+w+',scrollbars=yes,toolbar=no,menubar=yes,location=no,status=yes, resizable=yes');
}