// Uwes Popup-Funktion
function open_picture(file, poptyp, width, height) {
  width = width + 30; height = height + 160;
  win = window.open("/content/show_picture.php?picfile="+file+"&poptyp="+poptyp, "Bildanzeige", "width="+width+", height="+height+", status=yes");
  win.focus();
  win.resizeTo(width, height);
}