if (document.images) 

{

  biographie_on = new Image();

  biographie_on.src = "picts/boutons/biographie_on.gif";  

  biographie_off = new Image();

  biographie_off.src = "picts/boutons/biographie_off.gif";



  compositeurs_on = new Image();

  compositeurs_on.src = "picts/boutons/compositeurs_on.gif";  

  compositeurs_off = new Image();

  compositeurs_off.src = "picts/boutons/compositeurs_off.gif";


  cd_on = new Image();

  cd_on.src = "picts/boutons/cd_on.gif";  

  cd_off = new Image();

  cd_off.src = "picts/boutons/cd_off.gif";
    

  presse_on = new Image();

  presse_on.src = "picts/boutons/presse_on.gif";  

  presse_off = new Image();

  presse_off.src = "picts/boutons/presse_off.gif";

  

  discographie_on = new Image();

  discographie_on.src = "picts/boutons/discographie_on.gif";  

  discographie_off = new Image();

  discographie_off.src = "picts/boutons/discographie_off.gif";

  

  portrait_on = new Image();

  portrait_on.src = "picts/boutons/portrait_on.gif";  

  portrait_off = new Image();

  portrait_off.src = "picts/boutons/portrait_off.gif";

  

  actualites_on = new Image();

  actualites_on.src = "picts/boutons/actualites_on.gif";  

  actualites_off = new Image();

  actualites_off.src = "picts/boutons/actualites_off.gif";
  

  sentier_on = new Image();

  sentier_on.src = "picts/boutons/sentier_on.gif";  

  sentier_off = new Image();

  sentier_off.src = "picts/boutons/sentier_off.gif";
  
  

  repertoire_on = new Image();

  repertoire_on.src = "picts/boutons/repertoire_on.gif";  

  repertoire_off = new Image();

  repertoire_off.src = "picts/boutons/repertoire_off.gif";

  

  realisations_on = new Image();

  realisations_on.src = "picts/boutons/realisations_on.gif";  

  realisations_off = new Image();

  realisations_off.src = "picts/boutons/realisations_off.gif";

  

  concert_on = new Image();

  concert_on.src = "picts/boutons/concert_on.gif";  

  concert_off = new Image();

  concert_off.src = "picts/boutons/concert_off.gif";

   

  liens_on = new Image();

  liens_on.src = "picts/boutons/liens_on.gif";  

  liens_off = new Image();

  liens_off.src = "picts/boutons/liens_off.gif";

  

  editeur_on = new Image();

  editeur_on.src = "picts/boutons/editeur_on.gif";  

  editeur_off = new Image();

  editeur_off.src = "picts/boutons/editeur_off.gif";

  

  epoques_on = new Image();

  epoques_on.src = "picts/boutons/epoques_on.gif";  

  epoques_off = new Image();

  epoques_off.src = "picts/boutons/epoques_off.gif";

  

}

function changeImages() {

  if (document.images) {

    for (var i=0; i<changeImages.arguments.length; i+=2) {

      document[changeImages.arguments[i]].src = eval(changeImages.arguments[i+1] + ".src");

    }

  }

}