<% if logged_in? %> You are logged in as User: <%= current_user.login %>
Would you like to <%= link_to "logout", :action=>'logout' %> or <%= link_to "enter a dive", :controller => 'dive', :action =>'create' %>? <% else %> You are not logged in.
Would you care to <%= link_to "log in", :action=>'login' %> or <%= link_to "sign up", :action=>'signup' %>? <% end %>