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_recherche_over = newImage("images/bt_recherche_over.gif");
		bt_contact_over = newImage("images/bt_contact_over.gif");
		bt_plan_over = newImage("images/bt_plan_over.gif");
		bt_cliquezici_over = newImage("images/bt_cliquezici_over.gif");
		bt_devenezmembre_over = newImage("images/bt_devenezmembre_over.gif");
		bt_jemabonne_over = newImage("images/bt_jemabonne_over.gif");
		rabaismembres_over = newImage("images/rabaismembres_over.gif");
		preloadFlag = true;
	}
}