function refreshSideBar(id) {
	var targetMenu = document.getElementById('menu'+id);
	var targetSubmenu = document.getElementById('submenu'+id);
		/* deactivate all menu */
		for (var i = 1; i<=30; i++) {
			if (document.getElementById('menu'+i)) {document.getElementById('menu'+i).className='';}
		}
		/* close all submenu */
		for (var i = 1; i<=30; i++) {
			if (document.getElementById('submenu'+i)) {document.getElementById('submenu'+i).style.display='none';}
		}
	if (targetMenu) {targetMenu.className='deactivated';} // activate menu background	
	if (targetSubmenu) {targetSubmenu.style.display='block';} // open clicked submenu
	
}