function correct_layout() {
   if(document.getElementById('inhalt').offsetHeight) {
      var div_heights = new Array(
        document.getElementById('inhalt').offsetHeight,
        document.getElementById('navigation').offsetHeight,
        document.getElementById('aktuell').offsetHeight
      );
      div_heights = div_heights.reverse(div_heights.sort(num_sort));
      var style_height = div_heights[0] + "px";
      document.getElementById('navigation').style.height = style_height;
      document.getElementById('inhalt').style.height = style_height;
      document.getElementById('aktuell').style.height = style_height;
   }
}

function num_sort(a,b) { 
   return a-b; 
}

function init_nav() {
   for(i = 0; i < document.getElementsByTagName('ul').length; 
       i++) {
      if(document.getElementsByTagName('ul')[i].className == 
      "opened") {
         id = document.getElementsByTagName('ul')[i].parentNode.id;
         toggle(id, false);
      }
   }
   if(window.name.length > 0)       
      load_nav();
}

function toggle(id, save) {
   ul = "ul_" + id;
   ul_element = document.getElementById(ul);
   
   if(ul_element) {
       if(ul_element.className == 'closed') {
          ul_element.className = "opened";
       } 
       else {
          ul_element.className = "closed";
       }
   }
   if(save == true) save_nav();
}

function save_nav() {
   var save = "";
   for(var i = 0; i < document.getElementsByTagName('ul').length;
   i++) {
      if((document.getElementsByTagName('ul')[i].className == 
      "opened" || 
      document.getElementsByTagName('ul')[i].className == 
      "closed") && document.getElementsByTagName('ul')[i].id != 
      'root') 
         save = save + document.getElementsByTagName('ul')[i].id 
         + "=" + document.getElementsByTagName('ul')[i].className 
         + ",";
   }
   if(save.lastIndexOf(",") > 0) 
      save = save.substring(0, save.lastIndexOf(","));
   window.name = save;
}

function load_nav() {
   var items = window.name.split(",");
   if(items.length > 0) {
      for(var i = 0; i < items.length; i++) {        
         id_value = items[i].split("=");         
         if(id_value.length == 2) {
            id = id_value[0];  
            value = id_value[1];
            document.getElementById(id).className = value;
         }
      }
   }
}

function auswahl() {
this.className='folder_over';
}

function nicht_auswahl() {
"this.className='folder';"
}
if(window.navigator.systemLanguage && !window.navigator.language) {
  function hoverIE() {
    var LI = document.getElementById("Navigation").firstChild;
    do {
      if (sucheUL(LI.firstChild)) {
        LI.onmouseover=einblenden; LI.onmouseout=ausblenden;
      }
      LI = LI.nextSibling;
    }
    while(LI);
  }
 
function sucheUL(UL) {
    do {
      if(UL) UL = UL.nextSibling;
      if(UL && UL.nodeName == "UL") return UL;
    }
    while(UL);
    return false;
  }
 
  function einblenden() {
    var UL = sucheUL(this.firstChild);
    UL.style.display = "block"; UL.style.backgroundColor = "silver";
  }
  function ausblenden() {
    sucheUL(this.firstChild).style.display = "none";
  }
} 

  window.onload=hoverIE;