anchor.diff:     t.named 'Data Extracts'
      t.titled "Data sources created by the users"
      t.links_to :controller => 'csvarchives'
  -  end
  +  end unless !logged_in?
   
  -  add_tab do |t|
  +
  +	add_tab do |t|
      t.named 'Groups'
      t.titled "Create groups to share things with"
      t.links_to :controller => 'work_groups'
  +  end unless !logged_in?
  +
  +  add_tab do |t|
  +   t.named 'Help'
  +   t.titled "How to use MethodBox to find variables, share methods and browse surveys"
  +   t.links_to :controller => 'help'
     end
   
     add_tab do |t|
      t.named 'Forums'
      t.titled "Ask questions, help others"
  -   t.links_to :controller => 'forums_controller'
  -  end
  +   t.links_to :controller => 'forums'
  +  end unless !logged_in?
  +
     #  
     # you can use restful routes with:
     #
  
positive.code:   #   end
    # end 
           
    add_tab do |t|
     t.named 'People'
     t.titled "Who's who in the MethodBox"
     t.links_to :controller => 'people'
    end 
  
    add_tab do |t|
     t.named 'Methods and Scripts'
     t.titled "Advice and scripts for data cleaning and statistical analysis"
     t.links_to :controller => 'scripts'
    end
  
    add_tab do |t|
     t.named 'Data Sources'
  
negative.code: <%# if logged_in? -%>
  <%  
  # this partial renders a tabnav, you can call it in your views with:
  #   <%= tabnav :main % > (just the tabnav) 
  