public static void UpdateNavigation(NavInfo nav)
{
Discuz.Data.Navs.UpdateNavigation(nav);
Navs.ClearNavigation();
Navs.InitNavigation();
}
public static void DeleteNavigation(int id)
{
Discuz.Data.Navs.DeleteNavigation(id);
Navs.ClearNavigation();
Navs.InitNavigation();
}