<!--//préchargement images
function prechimg(){
if (document.images) {
  c12=new Image();c12.src="img/accueil_over.gif";
  c22=new Image();c22.src="img/index_over.gif";
  c32=new Image();c32.src="img/bulletin_over.gif";
  c42=new Image();c42.src="img/signet_over.gif";
  c52=new Image();c52.src="img/sommaire_over.gif";
  c62=new Image();c62.src="img/expertise_over.gif";
  c72=new Image();c72.src="img/fourtout_over.gif";
  c11=new Image();c11.src="img/accueil_on.gif";
  c21=new Image();c21.src="img/index_on.gif";
  c31=new Image();c31.src="img/bulletin_on.gif";
  c41=new Image();c41.src="img/signet_on.gif";
  c51=new Image();c51.src="img/sommaire_on.gif";
  c61=new Image();c61.src="img/expertise_on.gif";
  c71=new Image();c71.src="img/fourtout_on.gif";
  c13=new Image();c13.src="img/accueil_down.gif";
  c23=new Image();c23.src="img/index_down.gif";
  c33=new Image();c33.src="img/bulletin_down.gif";
  c43=new Image();c43.src="img/signet_down.gif";
  c53=new Image();c53.src="img/sommaire_down.gif";
  c63=new Image();c63.src="img/expertise_down.gif";
  c73=new Image();c73.src="img/fourtout_down.gif";
  c01=new Image();c01.src="img/titre.gif";
  c10=new Image();c10.src="img/accueil.gif";
  c20=new Image();c20.src="img/index.gif";
  c30=new Image();c30.src="img/bulletin.gif";
  c40=new Image();c40.src="img/signet.gif";
  c50=new Image();c50.src="img/sommaire.gif";
  c60=new Image();c60.src="img/expertise.gif";
  c70=new Image();c70.src="img/fourtout.gif";
  c80=new Image();c80.src="img/boiteus.gif";
}}
// -- Fin préchargement -->