function newImage(arg) {
	if (document.images) {
		rslt = new Image();
		rslt.src = arg;
		return rslt;
	}
}

function changeImages() {
	if (document.images && (preloadFlag == true)) {
		for (var i=0; i<changeImages.arguments.length; i+=2) {
			document[changeImages.arguments[i]].src = changeImages.arguments[i+1];
		}
	}
}

var preloadFlag = false;
function preloadImages() {
	if (document.images) {
		bt_accueil_over = newImage("../images/bt_accueil_over.gif");
		bt_contacteznous_over = newImage("../images/bt_contacteznous_over.gif");
		bt_plandusite_over = newImage("../images/bt_plandusite_over.gif");
		bt_english_over = newImage("../images/bt_english_over.gif");
		bt_apropos_over = newImage("../images/bt_apropos_over.gif");
		bt_produits_over = newImage("../images/bt_produits_over.gif");
		bt_ondule101_over = newImage("../images/bt_ondule101_over.gif");
		bt_placercommande_over = newImage("../images/bt_placercommande_over.gif");
		bt_faqfr_over = newImage("../images/bt_faqfr_over.gif");
		bt_nouvelles_over = newImage("../images/bt_nouvelles_over.gif");
		bt_carrieres_over = newImage("../images/bt_carrieres_over.gif");
		bt_temoignages_over = newImage("../images/bt_temoignages_over.gif");
		bt_accesclient_over = newImage("../images/bt_accesclient_over.gif");
		preloadFlag = true;
	}
}