function popup(id) {
  window.open('popup.php?id='+id,'','width=350,height=400,location=no,menubar=no,status=no,toolbar=no,resizable=yes,scrollbars=yes');
}

function popup_init() {
  if (navigator.appName=="Netscape"){
    breite = innerWidth;
    hoehe = innerHeight;
  } else {
    breite = document.documentElement.clientWidth;
    hoehe = document.documentElement.clientHeight;
  }
  for (var i = 0; i < document.getElementsByTagName("img").length; i++) {
    if (document.getElementsByTagName("img")[i].width > breite - 40) {
      breite = document.getElementsByTagName("img")[i].width + 70;
      window.resizeTo (breite, hoehe);
    }
    if (document.getElementsByTagName("img")[i].height > hoehe - 80) {
      hoehe = document.getElementsByTagName("img")[i].height + 140;
      window.resizeTo (breite, hoehe);
    }
  }
}