0%</span></span>
      <span>filepaths <a id="show-filepaths" class="selected" href="#">shown</a> &bull; <a id="hide-filepaths" href="#">hidden</a></span>
    </div>
  </div>
  <div class="right" id="comment-column">
    <div id="comment-area">
      {{range .Step}}
      <div class="comment first last">
        <a class="comment-link" href="/doc/codewalk/?fileprint=/{{urlquery .File}}&amp;lo={{urlquery .Lo}}&amp;hi={{urlquery .Hi}}#mark" target="code-display"></a>
        <div class="comment-title">{{html 