function changePage(i){
      for(j=1;j<6;j++){
            if(i==j){
	  document.getElementById("contenu"+j).style.display="block";
            }
            else{
	  document.getElementById("contenu"+j).style.display="none";
            }
      }
}


function action_besoin(i){
      if(i == 1){
            document.getElementById("tr_nb_poste").style.display = "block";
            document.getElementById("tr_taille_ecran").style.display = "block";
            document.getElementById("tr_dix_pouces").style.display = "block";
            document.getElementById("tr_quinze_pouces").style.display = "block";
      }
      else{
            document.getElementById("tr_nb_poste").style.display = "none";
            document.getElementById("tr_taille_ecran").style.display = "none";
            document.getElementById("tr_dix_pouces").style.display = "none";
            document.getElementById("tr_quinze_pouces").style.display = "none";          
      }
}


function action_rangement(i){
      if(i == 1){
            document.getElementById("chariot").style.display = "block";
            document.getElementById("valise").style.display = "block";

      }
      else{
            document.getElementById("chariot").style.display = "none";
            document.getElementById("valise").style.display = "none";        
      }
}