class TrustyCms::AdminUI::NavTab

def add_item(*args)
  options = args.extract_options!
  options.symbolize_keys!
  before = options.delete(:before)
  after = options.delete(:after)
  tab_name = before || after
  if self[tab_name]
    _index = index(self[tab_name])
    _index += 1 unless before
    insert(_index, NavSubItem.new(args.first, args.second))
  else
    add NavSubItem.new(args.first, args.second)
  end
end