function winop (datei,name,width,height) {

  sw = screen.width;
  sh = screen.height;
  if (width>sw-50) width=sw-50;
  if (height>sh-100) height=sh-100;
  pict = window.open(datei,name,'width='+width+',height='+height+',scrollbars=yes,dirctories=no,resizable=yes,toolbar=no,location=no,status=no,menubar=no');
  pict.focus();
}

function tabop (datei,name) {

  tab = window.open(datei,name);
  tab.focus();
}