<!--

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  function setActiveStyleSheet(title)
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    if (document.getElementsByTagName) // NS4.x abfangen
    {
      var i, a, main;
      for(i=0; (a = document.getElementsByTagName("link")[i]); i++) {
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          if(a.getAttribute("title") == title) a.disabled = false;
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  function getActiveStyleSheet()
  {
    if (document.getElementsByTagName) // NS4.x abfangen
    {
      var i, a;
      for(i=0; (a = document.getElementsByTagName("link")[i]); i++) {
        if(a.getAttribute("rel").indexOf("style") != -1 && a.getAttribute("title") && !a.disabled) return a.getAttribute("title");
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    return null;
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  function getPreferredStyleSheet()
  {
    if (document.getElementsByTagName) // NS4.x abfangen
    {
      var i, a;
      for(i=0; (a = document.getElementsByTagName("link")[i]); i++) {
        if(a.getAttribute("rel").indexOf("style") != -1
           && a.getAttribute("rel").indexOf("alt") == -1
           && a.getAttribute("title")
           ) return a.getAttribute("title");
      }
    }
    return null;
  }

  function createCookie(name,value,days)
  {
    if (days) {
      var date = new Date();
      date.setTime(date.getTime()+(days*24*60*60*1000));
      var expires = "; expires="+date.toGMTString();
    }
    else expires = "";
    document.cookie = name+"="+value+expires+"; path=/";
  }

  function readCookie(name)
  {
    var nameEQ = name + "=";
    var ca = document.cookie.split(';');
    for(var i=0;i < ca.length;i++) {
      var c = ca[i];
      while (c.charAt(0)==' ') c = c.substring(1,c.length);
      if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length,c.length);
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    return null;
  }

  window.onload = function(e)
  {
    var cookie = readCookie("style");
    var title = cookie ? cookie : getPreferredStyleSheet();
    setActiveStyleSheet(title);
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  window.onunload = function(e)
  {
    var title = getActiveStyleSheet();
    createCookie("style", title, 365);
  }

   var cookie = readCookie("style");
//   cookie = false;
   var title = cookie ? cookie : getPreferredStyleSheet();
   setActiveStyleSheet(title);

// -->