function chgvis(id,vis) {
	// cross-browser function to get an object's style object given its id
	if(document.getElementById && document.getElementById(id)) {
		// W3C DOM
		objstyle = document.getElementById(id).style;
	} else if (document.all && document.all(id)) {
		// MSIE 4 DOM
		objstyle = document.all(id).style;
	} else if (document.layers && document.layers[id]) {
		// NN 4 DOM.. note: this won't find nested layers
		objstyle = document.layers[id];
	} else {
		objstyle = false;
	}
	if ( objstyle ) {
		objstyle.visibility = vis;
	}

}
function menu(liste_menus) {
	return 0;
	//document.getElementById("debug").innerHTML+="liste_menus : "+liste_menus+"<br>";
	var tab_affiches = {};
	if (liste_menus && liste_menus.length > 0) {
		tab_menus = liste_menus.split(" ");
		for ( i=0; i<tab_menus.length ; i++ ) {
			if (tab_menus[i].length) {
				tab_affiches[tab_menus[i]] = true;
			}
		}
	}
	for(i=1;i<=100;i++) {
		if ( ! tab_affiches["menu"+i]) {
			chgvis("menu"+i,"hidden");
		}
	}
	for(i=1;i<=100;i++) {
		if (tab_affiches["menu"+i]) {
			chgvis("menu"+i,"visible");
		}
	}
}