/*on precharge les images de substitution*/
iservice = new Image;
iservice.src = "../../img/services.jpg";
ivehicules = new Image;
ivehicules.src = "../../img/minibus.jpg";
itourisme = new Image;
itourisme.src = "../../img/visites.jpg";
ipromo = new Image;
ipromo.src = "../../img/vip.jpg";
iref = new Image;
iref.src = "../../img/ref.jpg";
iprix = new Image;
iprix.src = "../../img/prix.jpg";
icontact = new Image;
icontact.src = "../../img/contact.jpg";
idemande = new Image;
idemande.src = "../../img/demande.jpg";
iengland = new Image;
iengland.src = "../../img/londres.jpg";
i1 = new Image;
i1.src = "images/minibus_2.jpg";
serviceon = new Image;
serviceon.src = "../../boutons/menu-1on.jpg";
service = new Image;
service.src = "../../boutons/menu-1.jpg";
autoon = new Image;
autoon.src = "../../boutons/menu-2on.jpg";
auto = new Image;
auto.src = "../../boutons/menu-2.jpg";
tourismeon = new Image;
tourismeon.src = "../../boutons/menu-3on.jpg";
tourisme = new Image;
tourisme.src = "../../boutons/menu-3.jpg";
promoon = new Image;
promoon.src = "../../boutons/menu-4on.jpg";
promo = new Image;
promo.src = "../../boutons/menu-4.jpg";
refon = new Image;
refon.src = "../../boutons/menu-5on.jpg";
ref = new Image;
ref.src = "../../boutons/menu-5.jpg";
prixon = new Image;
prixon.src = "../../boutons/menu-6on.jpg";
prix = new Image;
prix.src = "../../boutons/menu-6.jpg";
contacton = new Image;
contacton.src = "../../boutons/menu-7on.jpg";
contact = new Image;
contact.src = "../../boutons/menu-7.jpg";
demandeon = new Image;
demandeon.src = "../../boutons/menu-8on.jpg";
demande = new Image;
demande.src = "../../boutons/menu-8.jpg";
londonon = new Image;
londonon.src = "../../boutons/menu-9on.jpg";
london = new Image;
london.src = "../../boutons/menu-9.jpg";


// JavaScript Document