anchor.diff:                                  </c:if>
   
                                   <c:if test="${not visibleRow and showCompressionRow and not xStatus.last}">
  -                                    .
  +                                    &hellip;
                                   </c:if>
   
                                   <c:if test="${not xStatus.last and (visibleRow or showCompressionRow)}"><br/></c:if>
  
positive.code: }
  
  function makeCellDraggableAndDroppable(input) {
          document.getElementsByClassName('marker').each(
  			function(item) {
  				new Draggable(item,{revert: true});
  				item.currentDurationIndex = item.parentNode.durationIndex;
  				item.activity = item.parentNode.parentNode.getElementsByClassName('activity')[0].innerHTML.strip();
  			}
          );
  
  		Droppables.add( $('deleteDrop'), {accept:'marker',hoverclass: 'hoverActive',onDrop:deleteEvent})
  
  
  }
  
  function registerDraggablesAndDroppables() {
  
negative.code:   </c:if>
  
  <div id="period" class="section">
  <laf:box title="Set up ${period.displayName} of ${studySegment.qualifiedName} in ${study.assignedIdentifier}">
      <laf:division>
          <p>
              This period has ${period.duration.days} days and repeats ${commons:pluralize(period.repetitions, "time")}.
              It begins on day ${period.startDay} of ${studySegment.qualifiedName}.
          </p>
  
          <form:form>
  