function preload()
{
image1 = new Image();
image1.src = image/sommaire_neg.gif;
image2 = new Image();
image2.src = image/menu1_neg.gif;
image3 = new Image();
image3.src = image/menu2_neg.gif;
image4 = new Image();
image4.src = image/menu3_neg.gif;
image5 = new Image();
image5.src = image/menu4_neg.gif;
image6 = new Image();
image6.src = image/menu5_neg.gif;
image7 = new Image();
image7.src = image/menu6_neg.gif;

}