anchor.diff:                          </th>
                       </c:forEach>
                       <th>Details</th>
  -
  -                    <td class="emptyCell" ></td>
  -                    <td class="emptyCellNoWidth"></td>
                       <th>Condition</th>
                   </tr>
   
  -                    <tr id="no-activities-message" >
  -                        <td id="td3"></td>
  -                        <c:choose>
  -                            <c:when test="${not empty command.grid}">
  -                            </c:when>
  -                            <c:otherwise>
  -                                <td colspan="${tableWidth - 1}">This period does not have any activities yet</td>
  -                            </c:otherwise>
  -                        </c:choose>
  -                        <td class="emptyCell"/>
  -                        <td class="emptyCellNoWidth"/>
  -                        <td class="emptyCellNoWidth"/>
  +                    <tr id="no-activities-message" style="display: none">
  +                        <th class="activity-column spacer"><!-- Spacer --></th>
  +                        <td colspan="${tableWidth - 3}">This period does not have any activities yet</td>
  +                        <th colspan="2" class="spacer"></th>
                       </tr>
                       <c:forEach items="${command.grid}" var="gridRow" varStatus="gridStatus">
                           <tr class="input-row">
  
positive.code:     }
  
      .input-row td input {
          /*border-width: 0; border-bottom: 1px dotted #666;*/
          border-width: 0; border-bottom: 1px #666;
          text-align: center;
          padding: 2px;
      }
  
      table {
  
negative.code:         cursor:pointer;
      }
  
      #period table {
          padding:5px;
          overflow-x:auto;
          display:block;
  