// Funktion zeigt Popup an
  function popup(popup) {
    var div = document.getElementById("popup");
    var bg = document.getElementById("popup_bg");
    var content = document.getElementById("popup_content");
    var mehr = document.getElementById("popup_mehr");
    // Inhalt und link anpassen
    content.innerHTML = window[popup];
    mehr.href = window[popup + "_l"];
    // Popup anzeigen
    bg.style.display = "block";
    div.style.display = "block";
  }

  // Popup zentrieren
  function popup_center() {
    var div = document.getElementById("popup");
    var divbreite = parseInt(div.style.width);
    var fensterbreite = parseInt(document.body.offsetWidth);
    var mitte = parseInt((fensterbreite - divbreite) / 2);
    // naja halt nicht mittig sondern wie gewollt
    div.style.left = "240px";
    // div.style.left = mitte + "px";
  }

  // Popup schliessen
  function popup_close() {
    var div = document.getElementById("popup");
    var bg = document.getElementById("popup_bg");
    bg.style.display = "none";
    div.style.display = "none";
  }
  function changeCss(){
  document.all.content.style.padding = "15px";
  }