var lastelem; // letztes geswitchte menüelement

function bgOn(elem) {
  if (lastelem != null) {
    bgOff(lastelem);
  }
  textOn(elem);
  elem.style.backgroundColor = "#9A9A9A";
  /* elem.style.fontSize = "9pt"; */
  lastelem = elem;
}

function bgOff(elem) {
  textOff(elem);
  elem.style.backgroundColor = "#BCBCBC";
  /* elem.style.fontSize = "9pt"; */
  lastelem;
}

function textOn(elem) {
  var lang = getLanguage();
  if (lang == "de") {
    lang = "fr";
  }
  else {
    lang = "de";
  }
  if (elem != null) {
    elem.innerHTML = elem.getAttribute(lang);
  }
}

function textOff(elem) {
  var lang = getLanguage();
  if (elem != null) {
    elem.innerHTML = elem.getAttribute(lang);
  }
}

function getLanguage() {
  var lang = navigator.userLanguage;
  if (lang != "de" && lang != "fr") {
    lang = "de"; // default
  }
  return lang;
}

function popBio(w, h) {
  param = new String("width=" + w + ",height=" + h + ",resizable=yes,dependent=yes,scrollbars=yes");
  popup = window.open("", "bio", param);
  popup.focus();
}

function popWin(w, h, name) {
  param = new String("width=" + w + ",height=" + h + ",resizable=yes,dependent=yes,scrollbars=yes");
  popup = window.open("", name, param);
  popup.focus();
}