code: def obfuscated_link_to(path, image, label, args={})
        _html = %{<form action="#{path}" method="get" class="obfuscated_link">}
        _html << %{ <fieldset><input alt="#{label}" src="#{image}" type="image" /></fieldset>}
        args.each{ |k,v| _html << %{  <div><input id="#{k.to_s}" name="#{k}" type="hidden" value="#{v}" /></div>} }
        _html << %{</form>}
        _html
      end
docs: Create a link that is opaque to search engine spiders.