anchor.diff:  	<div>
   		<input type="hidden" id="_action" name="_action" value=""> 
   		<input type="hidden" id="_selectedEpoch" name="_selectedEpoch" value=""> 
  -		<input	type="hidden" id="_selectedStratification" name="_selectedStratification" value=""> 
  +		<input type="hidden" id="_selectedStratification" name="_selectedStratification" value=""> 
   		<input type="hidden" id="_selectedAnswer" name="_selectedAnswer" value="">
   		<input type="hidden" id="generateGroups" name="generateGroups" value="false"/>
   		<input type="hidden" id="epochId" name="epochId"/>
  
positive.code: 											</tr>
  											</c:if>
  										</c:forEach>
  									</table>
  								</td>
  							</tr>
                      		</table>											
  
negative.code: 								</td>
  								<td>
  									<table class="" id="table1" width="50%">
  										
  										<c:forEach var="answer" varStatus="statusAns"
  											items="${command.study.epochs[epochCount.index].stratificationCriteria[status.index].permissibleAnswers}">
  											<c:if test="${epoch.stratificationIndicator == 'true' }">
  