function showSubmenu(m) {
		hideAll();
		$('#'+m).removeClass('submenu_closed');
		$('#'+m).addClass('submenu_open');
	}
	
	function hideSubmenu(m) {
		$('#'+m).removeClass('submenu_open');
		$('#'+m).addClass('submenu_closed');
	}
	
	function hideAll() {
		hideSubmenu('submenu_instrumentales');
		hideSubmenu('submenu_actividades');
	}