function nop() {
	void 0;
}

function nom_adresse() {
	window.open('nom_adresse.html','_blank','width=500,height=250');
	return true;
}


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) {
		Lunion_over = newImage("navh/Lunion-over.jpg");
		Formation_over = newImage("navh/Formation-over.jpg");
		Societe_over = newImage("navh/Societe-over.jpg");
		Formules_over = newImage("navh/Formules-over.jpg");
		Inscription_over = newImage("navh/Inscription-over.jpg");
		Communication_over = newImage("navh/communicationrouge.gif");
		Historique_over = newImage("navh/historiquerouge.gif");
		preloadFlag = true;
	}
}