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@@ -143,11 +143,19 @@ module ActionController #:nodoc:
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       # Declare a controller method as a helper. For example, the following
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       # makes the +current_user+ controller method available to the view:
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       #   class ApplicationController < ActionController::Base
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-      #     helper_method :current_user
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+      #     helper_method :current_user, :logged_in?
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+      #
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       #     def current_user
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-      #       @current_user ||= User.find(session[:user])
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+      #       @current_user ||= User.find_by_id(session[:user])
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       #     end
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+      #     
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+      #      def logged_in?
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+      #        current_user != nil
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+      #      end
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       #   end
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+      #   
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+      # In a view:
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+      #  <% if logged_in? -%>Welcome, <%= current_user.name %><% end -%>
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       def helper_method(*methods)
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         methods.flatten.each do |method|
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           master_helper_module.module_eval <<-end_eval