niveaux = document.all;
    if (! niveaux)
        niveaux = document;
    function OnOff (quoi)
   {
//04/12/2006 LOGIQ Systèmes
      if (quoi == null) return;

      if (quoi.style)
      {
         quoi.style.visibility = "visible";
           }
      if (quoi.visibility)
      {
         quoi.visibility = "visible";
      }
   }
    function Off (quoi)
   {
//04/12/2006 LOGIQ Systèmes
      if (quoi == null) return;
      if (quoi.style)
      {
         quoi.style.visibility = "hidden";
           }
      if (quoi.visibility)
      {
         quoi.visibility = "hidden";
      }
   }