anchor.diff:                    <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>
  +                        <input type="hidden" name="attributeOp" value="0"/>
  +                        <input type="radio" name="attributeValue" value="true" checked /><fmt:message key="query.constraint.true"/>
  +                        <input type="radio" name="attributeValue" value="false"/><fmt:message key="query.constraint.false"/>
                         </td>
                       </c:when>
                       <c:otherwise>
  
positive.code:                       <td valign="top" align="center">
                          <span id="operandEditSpan">
                            <html:text property="attributeValue"/><br/>
                          </span>
                          <c:if test="${!empty attributeOptions}">
                            <select name="attributeOptions" onchange="this.form.attributeValue.value=this.value;">
  
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>
  