module Navigation

  module ControllerExtensions

    module ClassMethods

      def sec_nav_highlight(name)
        class_eval do
          before_filter { |c| c.instance_variable_set(:@sec_nav, name) }
        end
      end
 
      def main_nav_highlight(name)
        class_eval do
          before_filter { |c| c.instance_variable_set(:@main_nav, name) }
        end
      end

    end

  end
    
  module RailsHelpers

    def sec_nav(name, options = {}, &block)
      if @sec_nav == name
        if options[:class]
          options[:class] += " active"
        else
          options[:class] = "active"
        end
      end
      content = capture(&block)
      concat content_tag(:li, content, options)
    end
      
    def main_nav(name, options = {}, &block)
      if @main_nav == name
        if options[:class]
          options[:class] += " active"
        else
          options[:class] = "active"
        end
      end
      content = capture(&block)
      concat content_tag(:li, content, options)
    end

  end

end