var oldo="";
function menuVert1(o){ oldo="mm1";  oo=document.getElementById(oldo); if (oo!=null) document.getElementById("mm1").style.color="white"; o.style.backgroundImage='url("visuels/menu_ht_vert1.jpg")'; }
function menuRouge1(o){ oldo="mm2"; oo=document.getElementById(oldo); if (oo!=null) document.getElementById("mm2").style.color="white"; o.style.backgroundImage='url("visuels/menu_ht_rouge1.jpg")'; }
function menuGris2(o){ oldo="mm3";  oo=document.getElementById(oldo); if (oo!=null) document.getElementById("mm3").style.color="white"; o.style.backgroundImage='url("visuels/menu_ht_gris2.jpg")'; }
function menuGris1(o){
	if (oldo!=""){
		var oo=document.getElementById(oldo);
		if (oo!=null) oo.style.color="#bbbbbb";
	}
	o.style.backgroundImage='url("visuels/menu_ht_gris1.jpg")';
}
function menuGris1h(o){
	o.style.backgroundImage='url("visuels/menu_ht_gris1.jpg")';
}