var chemin = "img/";
var ext = ".gif";
var liste_images = new Array('bouton_archive_hover','bouton_contact_hover','bouton_home_hover','bouton_infos_hover','bouton_lien_hover','bouton_news_hover');
document.image_chargee = new Array();

function prechargement() {
	for ( i = 0; i < liste_images.length; i++ ) {
		document.image_chargee[i] = new Image;
		document.image_chargee[i].src = chemin + liste_images[i] + ext;
	}
}