oggle]</xf:label>
                            <xf:setvalue ref="@required" value="(. + 1) mod 2" ev:event="DOMActivate"/>
                        </xf:trigger>
                    </xh:td>
                </xh:tr>
            </xf:repeat>
            <xh:tr/>
        </xh:table>
        <xf:trigger>
            <xf:label>Add line</xf:label>
            <xf:insert ev:event="DOMActivate" ref="/instance/node" at="last()" position="after"/>
        </xf:trigger>
    </xh:body>
</xh:html>
