anchor.diff:            
   <c:choose>
       <c:when test="${column.visible}">
  +    		<c:if test="${dataType == 'primitive'}">
               <th align="center" class="checkbox">
  +            ${dataType}
                 <html:multibox property="selectedObjects" styleId="selectedObjects_${status.index}${dataType}"
                                onclick="selectColumnCheckbox(${status.index}, '${dataType}')"
                                disabled="${resultsTable.maxRetrievableIndex > resultsTable.size ? 'false' : 'true'}">
                   <c:out value="${status.index}"/>
                 </html:multibox>
               </th>
  +            </c:if>
   
               <th align="center" valign="top" >
   
  
positive.code:                 <c:choose>
                    <c:when test="${column.visible}">
                      <%-- the checkbox to select this object --%>
                      <td align="center" class="checkbox">
                        <html:multibox property="selectedObjects"
                                       styleId="selectedObjects_${status2.index}${dataType}_${status.index}"
                                       onclick="itemChecked(${status2.index}, '${dataType}')">
                          <c:out value="${status2.index},${status.index}"/>
                        </html:multibox>
                      </td>
                      <td>
                        <c:set var="object" value="${row[column.index]}" scope="request"/>
                        <c:choose>
  
negative.code:     <tiles:get name="export.tile" />
    </c:otherwise>
  </c:choose>
  <!-- /table.jsp -->