function fichier2(){
   document.getElementById("fichier").style.display = "block";
      document.getElementById("delai").style.display = "none";
	     document.getElementById("marquage").style.display = "none";
}
function delai2(){
   document.getElementById("fichier").style.display = "none";
      document.getElementById("delai").style.display = "block";
	     document.getElementById("marquage").style.display = "none";
}
function marquage2(){
   document.getElementById("fichier").style.display = "none";
      document.getElementById("delai").style.display = "none";
	     document.getElementById("marquage").style.display = "block";
}