<form method="post"
      action="{{action}}"
      enctype="multipart/form-data">
      <input type="button" value="Add attachment" class="attachment_form_add_button"/>
      <ol class="attachment_form_fields" style="display:none">
        <li>
          <label for="{{name}}">File to upload</label>
          <input type="file" class="text" name="{{name}}" id="{{name}}"/>
        </li>
        <li>
          <label>&nbsp;</label>
          <input type="submit" value="Attach file"/>
        </li>
      </ol>
</form>
