function nav()
   {
   var w = document.myform.mylist.selectedIndex;
   var url_add = document.myform.mylist.options[w].value;
   var url_parts=document.URL.split("/");

   window.location.href = url_add + url_parts[url_parts.length-1];
   }
   
 function nav_de()
   {
   var url_add = ""
   var url_parts=document.URL.split("/");

   window.location.href = url_add + url_parts[url_parts.length-1];
   }
   
function nav_en()
   {
   var url_add = "en/"
   var url_parts=document.URL.split("/");

   window.location.href = url_add + url_parts[url_parts.length-1];
   }
   
   function nav2_de()
   {
   var url_add = "../"
   var url_parts=document.URL.split("/");

   window.location.href = url_add + url_parts[url_parts.length-1];
   }
   
function nav2_en()
   {
   var url_add = ""
   var url_parts=document.URL.split("/");

   window.location.href = url_add + url_parts[url_parts.length-1];
   }