anchor.diff:                      <div>
                           <input type="text" id="maxInstances" value="0"/>
                       </div>
  -                    <span id="error_max_instances" class="error"></span>
  +                    <span class="error option-error option-error_instances"></span>
                   </td>
               </tr>
           </table>
  
positive.code:                     <label for="resourcePool">Resource pool</label>
                  </th>
                  <td>
                      <select id="resourcePool"> </select>
                  </td>
              </tr>
              <tr class="hidden cloneOptionsRow">
  
negative.code:             var self = this;
  
              this.$resourcePool.children().remove();
              this._appendOption(this.$resourcePool, '', '--Please select pool--');
              $pools.each(function () {
                  self._appendOption(self.$resourcePool, $j(this).attr('name'));
              });
  