//salle img preload

sal1_pre = new Image();
sal1_pre.src = "img/salle/sal1.jpg";

sal2_pre = new Image();
sal2_pre.src = "img/salle/sal2.jpg";

sal3_pre = new Image();
sal3_pre.src = "img/salle/sal3.gif";

sal4_pre = new Image();
sal4_pre.src = "img/salle/sal4.gif";

t_sal1_pre = new Image();
t_sal1_pre.src = "img/salle/t_sal1.jpg";

t_sal2_pre = new Image();
t_sal2_pre.src = "img/salle/t_sal2.jpg";

t_sal3_pre = new Image();
t_sal3_pre.src = "img/salle/t_sal3.gif";

t_sal4_pre = new Image();
t_sal4_pre.src = "img/salle/t_sal4.gif";