# File app/helpers/conferences_helper.rb, line 20
  def conf_list_row(conf)
    table_row_tag <<
      [logo_thumb_for(conf),
       link_to(conf.name, :controller => 'conferences', 
                :action => 'show', 
                :short_name => conf.short_name),
        "#{conf.begins} - #{conf.finishes}",
        sign_up_person_for_conf_link(@user, conf)
      ].map {|col| "<td>#{col}</td>"}.join <<
      end_table_row_tag
  end