_user_nav.html.erb

<ul class="nav pills pull-right">

    <li>
      <div class="social"> <%=  fb_like(Setting.domain) %>  </div>
    </li>

  <% if current_user %>    

    <li class="dropdown">
      <%= link_to "/account" , :class => "dropdown-toggle", :data => { :toggle => "dropdown" } do %>
        <%= current_user.email %>
      <% end %>

      <%= render_list :class => "dropdown-menu" do |li|
          li << link_to("Logout",destroy_user_session_path, :method => :delete )
      end %>

    </li>

<% else %>
  <li> <%= link_to( "Sign Up" ,new_user_registration_path) %> </li>
  <li> <%= link_to( "Login", new_user_session_path )  %> </li>   
  <li> <%= link_to( "FB Login", "/users/auth/facebook" )  %> </li>   
<% end %>


</ul>