<!--       
function winopen(desturl,wname,w,h){
  var x0, y0;
 
  neuesfenster=open('image/'+desturl+'.jpg',wname,'toolbar=no,resizable=yes,screenX='+x0+',screenY='+y0+',width='+w+',height='+h);
  if (navigator.appVersion.charAt(0)>=3) {
  x0=(screen.availWidth-w)/2;
  y0=(screen.availHeight-h)/2;
  neuesfenster.moveTo(x0,y0);
  neuesfenster.focus();
  }    
}
//-->