/**
 * Préchargement des images
 */
if (document.images) {
	image1 		= new Image(71, 25);
	image1.src	= "templates/gfx/bouton_contact_on.png";
	image2 		= new Image(129, 25);
	image2.src	= "templates/gfx/bouton_qui_on.png";
}


/**
 * Rollover / Rollout
 */
function allumerImage(image_fichier, image_id) {
	
	image_racine = image_fichier;
	image_racine = image_racine.replace(/_off.png/, "");
	image_racine = image_racine.replace(/_on.png/, "");
	
	if (document.images) {
		if (document.images[image_id].src.indexOf("_on.png") == -1) {
			document.images[image_id].src = image_racine + "_on.png";
		} else {
			document.images[image_id].src = image_racine + "_off.png";
		}
	}
}