function empfehlen_verdienen(url){
 var hoch   = screen.height - 600; //Bildschirmhhe 
 var links   = screen.width - 800;
 var popleft  = links/2;
 var poptop  = hoch/2;
  obj=open("http://ad.zanox.com/ppc/?1406988C747250562Tatwi71d", "popup", "width=800,height=600,top="+ poptop +",left="+ popleft +",directories=no,scrollbars=yes,menubar=no,resizable=no,status=no,toolbar=no")
  obj.window.focus()
}