Dicount code not working on Journal

Code: Select all

{% for voucher in vouchers %}
                <tr>
                  <td></td>
                  <td class="text-left td-voucher">{{ voucher.description }}</td>
                  <td class="text-left td-voucher"></td>
                  <td class="text-left td-voucher"><div class="input-group btn-block" style="max-width: 200px;">
                      <input type="text" name="" value="1" size="1" disabled="disabled" class="form-control" />
                      <span class="input-group-btn">
                  <button type="button" data-toggle="tooltip" title="{{ button_remove }}" class="btn btn-danger" onclick="voucher.remove('{{ voucher.key }}');"><i class="fa fa-times-circle"></i></button>
                  </span></div></td>
                  <td class="text-right td-voucher">{{ voucher.amount }}</td>
                  <td class="text-right td-voucher">{{ voucher.amount }}</td>
                </tr>
              {% endfor %}