anchor.diff:      </l:settingsGroup>
   </tbody>
   
  +<button id="buildTypeId" style="display: none"></button>
  +
   <tbody>
   
   <c:if test="${params.experimentalMode == true}">
  
positive.code:         </c:set>
          <props:multilineProperty name="${params.nugetPackageSourcesKey}" className="longField" expanded="true"
                                   cols="60" rows="3" linkTitle="Sources" note="${note}"/>
          <span class="error" id="error_${params.nugetPackageSourcesKey}"></span>
      </td>
  </tr>
  
negative.code: 
  <script type="text/javascript">
    BS.DotnetParametersForm.updateElements();
    $('buildTypeId').value = window.location.search.substring(1).split('&').grep(/id=buildType:(.*)/).join('').split(':')[1];
  </script>