       .append('span').attr('class', 'tag')
 
     tag_spans.text((d) -> d)
-    extra = rows.append('td')
-    @extra_td_callback(extra)
     @renderCallback(@)
 
   renderTags: (container, tag_list) ->


  render: (options = {}, callback) ->
    dataFilter = @constructDataFilter(options)
    filtered = dataFilter(@displayData())
    @paginate(options.page, filtered.length)
    rows = @question_table.selectAll('tr.response')
      .data(filtered.slice((@_page - 1) * @_perPage, @_perPage * @_page))

    rows.enter()
      .append('tr')

    @_series_header  = options.series_header or "series_title"
    @_filter_header  = options.filter_header or "filter_title"
    @_tag_header     = options.tag_header or "tag_title"
    @_currentMetadata = {}
    @initializeQuestionTable()

    @_page          = 1
