function menu_show_separator(prev_menu_id,this_menu_id)
{
  var prev_menu_id=document.getElementById('menu_id_'+prev_menu_id);
  var this_menu_id=document.getElementById('menu_id_'+this_menu_id);
  if(prev_menu_id)
  {
    /*prev_menu_id.style.backgroundImage = "url('../images/menu_blue_separator.gif')";
    prev_menu_id.style.backgroundPosition = 'right';
    prev_menu_id.style.backgroundRepeat="no-repeat";*/
    //menu_el.style.backgroundColor = "#000000";
    prev_menu_id.style.display = ''; 
  }
  this_menu_id.style.display = '';
  /*document.getElementById('menu_id_'+this_menu_id).style.backgroundImage = "url('../images/menu_blue_separator.gif')";
  document.getElementById('menu_id_'+this_menu_id).style.backgroundPosition = 'right';
  document.getElementById('menu_id_'+this_menu_id).style.backgroundRepeat="no-repeat";*/
}

function menu_hide_separator(prev_menu_id,this_menu_id)
{
  //alert('menu_id_'+menu_id);
  var prev_menu_id=document.getElementById('menu_id_'+prev_menu_id);
  var this_menu_id=document.getElementById('menu_id_'+this_menu_id);
  if(prev_menu_id)
  {
    //prev_menu_id.style.backgroundImage = "url('')";
    //menu_el.style.backgroundColor = "#000000";
    //alert('menu_id_'+menu_id);
    prev_menu_id.style.display = 'none';
  }
  this_menu_id.style.display = 'none';
  //document.getElementById('menu_id_'+this_menu_id).style.backgroundImage = "url('')";
}