/* MENU 01 */
function show_menu01()
{ document.getElementById('menu01').style.visibility = "visible"; }
function hide_menu01()
{ document.getElementById('menu01').style.visibility = "hidden"; }

/* SUB MENU 01 */
function show_submenu01()
{ document.getElementById('submenu01').style.visibility = "visible"; }
function hide_submenu01()
{ document.getElementById('submenu01').style.visibility = "hidden"; }



/* MENU 02 */
function show_menu02()
{ document.getElementById('menu02').style.visibility = "visible"; }
function hide_menu02()
{ document.getElementById('menu02').style.visibility = "hidden"; }

/* SUB MENU 02 */
function show_submenu02()
{ document.getElementById('submenu02').style.visibility = "visible"; }
function hide_submenu02()
{ document.getElementById('submenu02').style.visibility = "hidden"; }