anchor.diff:  <div class=messages itemscope itemtype="http://schema.org/Article">
   
   <c:set var="scroller"><c:if test="${topScroller}">
  +  <div class="nav">
     <div class="grid-row">
       <div class="grid-3-1">
         <table>
  
positive.code:       </c:if>
      </div>
    </div>
  </c:if></c:set>
  
  <c:set var="bottomScroller"><c:if test="${bottomScroller}">
    <div class="grid-row">
      <div class="grid-3-1">
        <table>
  
negative.code:         </table>
        </c:if>
      </div>
    </div>
    </div>
  </c:if></c:set>
  
  