function laden()
 {
   oben=100 ;
   links=screen.width - screen.availWidth ;
   hoehe=screen.height - screen.availHeight ;
   breite=210;
   optionen="Width="+breite+",Height="+hoehe+",Left="+links+",top="+oben+",resizable=no";
   processing = window.open("laden.htm","processing",optionen) ;
   onBlur="self.focus()" ;
 }