main4.rb

# lib/app/page/main.rb
module App
  module Page
    class Main < WatirSplash::Page::Base
      # ...

      def search_button
        modify button(:name => "go"),
          :click => lambda {redirect_to Results}
      end
    end
  end
end

results_2.rb

# lib/app/page/results.rb
module App
  module Page
    class Results < WatirSplash::Page::Base 
      def results
        modify ul(:id => "wg0"),
          :count => lambda {results.lis(:class => "sa_wr").size},
          :[] => lambda {|i| results.li(:class => "sa_wr", :index => i)}
      end
    end
  end
end