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: 					<tags:button type="button" icon="edit" color="blue" value="Edit Stratification Criteria" onclick="editStratificationCriteria('${epochCount.index}','${isBookRandomized}', '${epoch.id}');" size="small"/>
  				</span>
  				<span id="stratumButton-${epoch.id}" <c:if test="${fn:length(epoch.stratificationCriteria) == 0}"> style = "display:none" </c:if> >
  					<tags:button type="submit" color="blue" value="Generate Stratum Groups" onclick="$('stratificationIndicator-${epochCount.index }').show();preProcessGenerateGroups(${epochCount.index}, ${epoch.id});" size="small"/>
  				</span>
  				<img id="stratificationIndicator-${epochCount.index }" src="<tags:imageUrl name="indicator.white.gif"/>" alt="Indicator" align="middle" style="display:none">
  			</div>
  
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' }">
  