function toggleSubmenu(menuItem)
{
	var menus = document.getElementById('menu_pad').getElementsByTagName('DIV');
	for (var i = 0, count = menus.length; i < count; i ++) {
		if (menus[i].className == 'submenu' && menus[i].style.display == '')
			menus[i].style.display = 'none';
	}
	
	var submenu = menuItem.parentNode.parentNode;
	while (!submenu.className || submenu.className != 'submenu')
		submenu = submenu.nextSibling;

	if (submenu.childNodes && (submenu.childNodes.length > 1 || (submenu.childNodes.length == 1 && submenu.childNodes[0].className)))
		submenu.style.display = (submenu.style.display == '') ? 'none' : '';
	else 
		document.location = menuItem.href;
}