var minimised;
  var temptext;

  function showChildren(el){
    elToChange = el.firstChild.nextSibling.nextSibling;
    if(elToChange){
      elToChange.style.display='block';
      return;
    }else{
      return;
    }
  }
  function hideChildren(el){
    elToChange = el.firstChild.nextSibling.nextSibling;
    if(elToChange){
      elToChange.style.display='none';
      return;
    }else{
      return;
    }
  }
  function initialiseMenu(){
    var menu_ul,menu_lis;
    menu_ul = document.getElementById('main_menu');
    menu_lis = menu_ul.getElementsByTagName('li');
    for(li_id in menu_lis){
      if(menu_lis[li_id].innerHTML){
        hideChildren(menu_lis[li_id]);
      }
    }
  }