timer=0;

function cachetout(){
	document.getElementById('menu_presentation').style.visibility="hidden";
	document.getElementById('presentation').className="presentation";

	document.getElementById('menu_admission').style.visibility="hidden";
	document.getElementById('admission').className="admission";

	document.getElementById('menu_formation').style.visibility="hidden";
	document.getElementById('formation').className="formation";

	document.getElementById('menu_oeuvres').style.visibility="hidden";
	document.getElementById('oeuvres').className="oeuvres";

	document.getElementById('menu_sanction').style.visibility="hidden";
	document.getElementById('sanction').className="sanction";

	document.getElementById('menu_ancien').style.visibility="hidden";
	document.getElementById('ancien').className="ancien";

}


// id_menu = sous_menu a afficher
// id_parent = menu a garder affiche au survol
function montre(id_menu,id_parent){
	cachetout();
	if(id_menu!="" && id_menu!="menu_" && id_menu!="menu_actualites" && id_menu!="menu_contact")
	{
		Menu = document.getElementById(id_menu)
		Menu.style.visibility="visible";
	}
	if(id_parent!="")
	{
		document.getElementById(id_parent).className=id_parent+"_on";
	}
	

}