function over(img,num,etat) {
	if (etat) etat = "h";
	else etat = "n";
	switch (num) {
		case 1: img.src="images/bandeau-haut-groupe-"+etat+".jpg"; break;
	}
}



function menu(obj,num,hover) {
	etat = (hover == 1) ? "hover" : "normal";
	obj.src="images/lien_news"+num+"_"+etat+".jpg"; 
}