function Menu(menu_id){

 if(document.all || document.getElementById){

  if(document.all){
   list = document.all(menu_id).style;
   mlist = 'MoreLink' + menu_id;
   yearlist = document.all(mlist);
  }else if(document.getElementById){
   list = document.getElementById(menu_id).style;
   mlist = 'MoreLink' + menu_id;
   yearlist = document.getElementById(mlist);
  }

  if(list.display == "none"){
   list.display = "block";
   yearlist.className = "listOpen";
  }else{
   list.display = "none";
   yearlist.className = "listClose";
  }

 }

}