anchor.diff:              <tr valign=middle>
                   <c:if test="${prevMessage != null}">
                     <td>
  -                    <a href="${fn:escapeXml(prevMessage.linkLastmod)}" rel=prev rev=next>←</a>
  +                    <a href="${fn:escapeXml(prevMessage.linkLastmod)}" rel=prev rev=next>← </a>
                     </td>
                     <td align=left valign=top>
                       <%= StringUtil.makeTitle(prevMessage.getTitle()) %>
  
positive.code:                   </c:if>
                  </td>
                  <td align="right" valign="middle">
                    <a href="${fn:escapeXml(nextMessage.linkLastmod)}" rel=next rev=prev>→</a>
                  </td>
                </c:if>
              </tr>
  
negative.code: <%
    if (prevMessage != null) {
      if (scroll == Section.SCROLL_GROUP) {
        out.print("<a href=\"" + prevMessage.getLinkLastmod() + "\" rel=prev rev=next>← </a></td><td align=left valign=top>" + StringUtil.makeTitle(prevMessage.getTitle()));
      } else {
        out.print("<a href=\"" + prevMessage.getLinkLastmod() + "\" rel=prev rev=next>← </a></td><td align=left valign=top>" + StringUtil.makeTitle(prevMessage.getTitle()) + " (" + prevMessage.getGroupTitle() + ')');
      }
    }
  %>
  