xml.instruct! :xml, :version=>"1.0"
xml.rss(:version=>"2.0") {

  xml.channel {

    xml.title(application_name + " Search Results")
    xml.link(catalog_index_url(params))
    xml.description(application_name + " Search Results")
    xml.language('en-us')
    @document_list.each do |doc|
      xml.item do
        xml.title( doc.to_semantic_values[:title][0] || doc.id )
        xml.link(catalog_url(doc[:id]))
        xml.author( doc.to_semantic_values[:author][0] ) if doc.to_semantic_values[:author][0]
      end
    end

  }
}