function treeMenu(id) {
 var disp = document.getElementById(id).style.display;
 idlist = "03,13,28,40,60,75".split(",");

 if(disp != "none" || disp == "") {
   document.getElementById(id).style.display = "none";
   document.getElementById("img_"+id).src = "../navi_images/menu_img_close_"+id+".gif";
  }
 else {
   document.getElementById(id).style.display = "block";
     for (foo in idlist){
         id_close = idlist[foo];
  
         if(id_close != id){
   
            document.getElementById(id_close).style.display = "none";
 
            document.getElementById("img_"+id_close).src = "../navi_images/menu_img_close_"+id_close+".gif";
        
         }
      }
   document.getElementById("img_"+id).src = "../navi_images/menu_img_open_"+id+".gif";
   }
}
function ms_over(id){
  document.getElementById(id).src = "../navi_images/menu_img_open_h_"+id+".gif";
  
  }
  function ms_out(id){
  document.getElementById(id).src = "../navi_images/menu_img_open_"+id+".gif";
  
  }