function Legende (num) {  
  NbMax=25;
var Comment;  
var ObjetAff = document.getElementById("Affiche");
  switch(num) {
  case 0:
    Comment="Fours à chaux";
    break;
  case 1:
    Comment="Fours à chaux";
    break;
  case 2:
    Comment="Fours à chaux";
    break;
  case 3:
    Comment="Végétation";
    break;
  case 4:
    Comment="Four à chaux";
    break;
  case 5:
    Comment="Fours à chaux";
    break;
  case 6:
    Comment="Fours à chaux";
    break;
  case 7:
    Comment="Four à chaux";
    break;
  case 8:
    Comment="Four à chaux";
    break;
  case 9:
    Comment="Gesse";
    break;
  case 10:
    Comment="Houblon";
    break;
  case 11:
    Comment="Houblon";
    break;
  case 12:
    Comment="Houblon";
    break;
  case 13:
    Comment="Végétation";
    break;
  case 14:
    Comment="Végétation";
    break;
  case 15:
    Comment="Végétation";
    break;
  case 16:
    Comment="Végétation";
    break;
  case 17:
    Comment="Éboulis";
    break;
  case 18:
    Comment="Carrières";
    break;
  case 19:
    Comment="Carrières";
    break;
  case 20:
    Comment="Le Castillon";
    break; 
  case 21:
    Comment="Le Castillon";
    break; 
  case 22:
    Comment="Le relais de l'Elzière";
    break; 
  case 23:
    Comment="Le relais de l'Elzière";
    break; 
  case 24:
    Comment="Boniol";
    break; 
  case 25:
    Comment="Boniol";
    break; }
  ObjetAff.innerHTML=Comment; }