<ul id='nav'>
  <% navigation_tree.each do |item| %>
    <li>
      <a href='/<%= item %>'><%= I18n.t item.gsub('/','_') %></a>
    </li>
  <% end %>
</ul>

<ul id='nav'>
  <% navigation_tree.each do |item| %>
    <li>
      <a href='/<%= item %>'><%= I18n.t item.gsub('/','.') %></a>
    </li>
  <% end %>
</ul>

Make navigation use new il8n style
Make navigation use new il8n style
