function Legende (num) {  
  NbMax=17;
var Comment;  
var ObjetAff = document.getElementById("Affiche");
  switch(num) {
  case 0:
    Comment="Le bas du Grand Châtaignier";
    break;
  case 1:
    Comment="Vue => le Ronc";
    break;
  case 2:
    Comment="Vue => Chavagnac";
    break;
  case 3:
    Comment="Vue => le serre de Barre";
    break;
  case 4:
    Comment="Vue => le Ronc";
    break;
  case 5:
    Comment="La Bourguette";
    break;
  case 6:
    Comment="La Bourguette et les Plaines";
    break;
  case 7:
    Comment="La Bourguette et Chavagnac";
    break;
  case 8:
    Comment="Vue => les Plaines";
    break;
  case 9:
    Comment="La Pierre Morte";
    break;
  case 10:
    Comment="Terre rouge à la Pierre Morte";
    break;
  case 11:
    Comment="Vue => Sud-Ouest";
    break;
  case 12:
    Comment="Vue => Nord-Ouest";
    break;
  case 13:
    Comment="La chapelle de Saint Sébastien";
    break;
  case 14:
    Comment="Chavagnac";
    break;
  case 15:
    Comment="Chavagnac";
    break;
  case 16:
    Comment="Le gour Peyrol aux Oulettes";
    break;
  case 17:
    Comment="Vue => Malbosc";
    break;
 }
  ObjetAff.innerHTML=Comment; }