<div class="container-fluid page-nav">
  <nav>
    <div class="row-fluid">
      <div class="span12">
        <h1><%= link_to RacingAssociation.current.short_name, root_path %></h1>
        <ul class="pull-right">
          <li><%= 
            link_to "Schedule", schedule_path, :class => "schedule_link" %></li><li><%= 
            link_to "Results", results_path, :class => "results_link" %></li><% 
            if mobile_browser? %><li><%= 
              link_to "Mobile", :mobile_site => "1" %></li><% 
            end %>
        </ul>
      </div>
    </div>
  </nav>
</div>

<div class="container-fluid page-nav">
  <nav>
    <div class="row-fluid">
      <div class="span12">
        <h1><%= link_to RacingAssociation.current.short_name, root_path %></h1>
        <ul class="pull-right">
          <% if @posts.present? %><li><%=
            link_to "Mailing Lists", mailing_lists_path %></li><% end %><li><%=
            link_to "Schedule", schedule_path, :class => "schedule_link" %></li><li><%=
            link_to "Results", results_path, :class => "results_link" %></li><%
            if mobile_browser? %><li><%=
              link_to "Mobile", :mobile_site => "1" %></li><%
            end %>
        </ul>
      </div>
    </div>
  </nav>
</div>

Add mailing lists link to nav if there are mailing list posts
Add mailing lists link to nav if there are mailing list posts
