zkoss/zk

<zk>
    <zscript>
    isVisible = true;
    </zscript>
    <div style="border:1px solid red;" id="host">
        **Start**
        <if test="${isVisible}">
            <div style="background:yellow">Without Template</div>
        </if>
        **Middle**
        <if test="${not isVisible}">
            <div style="background:green">Without Template</div>
        </if>
        <if test="${isVisible}">
            <div style="background:yellow">Without Template</div>
        </if>
        **End**
    </div>
</zk>