// JavaScript Document

function openLargeImage(id){
  imagefield = document.getElementById(id);
  // Quelle ermitteln
  imagesrc = imagefield.src;
  // Bildschirmgröße ermitteln und Popup zentriert öffnen
  breite = 800;
  hoehe  = 600;
  links = (screen.width/2)-(breite/2);
  oben = (screen.height/2)-(hoehe/2);
  fenster = window.open('news_popup.php?s='+imagesrc, "mspopup", "height="+hoehe+",width="+breite+",status = no,toolbar = no,menubar = no,location = no,resizable = no,titlebar = no,scrollbars = no,fullscreen = no,top ="+oben+",left ="+links);
  fenster.focus();
}