function set_menu_active(m_item)
{
   for(i=0;i<document.images.length;i++)
   {
      l_src  = new String(document.images[i].src);
      l_name = new String(document.images[i].name);

      if (l_src.indexOf("bullet") != -1 && l_name.indexOf(m_item) != -1)
      {
         l_src = "/img_bab/bullet_s.gif"
         document.images[i].src = l_src;
         break;
      }
   }
}