anchor.diff:                        <td valign="top" align="center">
                           <span id="operandEditSpan">
                             <html:text property="attributeValue"/><br/>
  +                          <%-- might want to show up arrow --%>
  +                          <c:if test="${!empty attributeOptions}">
  +                            <im:vspacer height="5"/><br/>
  +                            <img src="images/move-up-arrow.gif" alt="^^^" border="0"/><br/>
  +                            <im:vspacer height="5"/><br/>
  +                          </c:if>
                           </span>
                           <c:if test="${!empty attributeOptions}">
                             <select name="attributeOptions" onchange="this.form.attributeValue.value=this.value;">
  
positive.code:                   <c:choose>
                      <c:when test="${editingNode.type == 'boolean'}">
                        <td valign="top">
                          = <input type="hidden" name="attributeOp" value="0"/>
                          <input type="radio" name="attributeValue" value="true" checked />True
                          <input type="radio" name="attributeValue" value="false"/>False
                        </td>
                        <td valign="top">
                          <html:submit property="attribute">
                            <fmt:message key="query.submitConstraint"/>
                          </html:submit>
                        </td>
                      </c:when>
                      <c:otherwise>
  
negative.code:                           </select>
                          </c:if>
                        </td>
                      </c:otherwise>
                    </c:choose>
                    <td valign="top">&nbsp;
                      <html:submit property="attribute">
                         <fmt:message key="query.submitConstraint"/>
                      </html:submit>
                    </td>
                  </tr>
                </table>
              </c:when>
  