// JavaScript Document
function CacheMenu(){
  document.getElementById("Menu1").style.visibility = "hidden";
  document.getElementById("Menu2").style.visibility = "hidden";
}
function AfficheMenu1(){
  document.getElementById("Menu1").style.visibility = "visible";
  document.getElementById("Menu2").style.visibility = "hidden";
}
function AfficheMenu2(){
  document.getElementById("Menu2").style.visibility = "visible";
  document.getElementById("Menu1").style.visibility = "hidden";
}