instance('item')" method="post" replace="none"/>
        </xf:model>
    </xh:head>
    <xh:body>
        <xh:p>
            <xf:group>
                <xf:input ref="instance('item')">
                    <xf:label>Enter an item:</xf:label>
                </xf:input>
                <xf:trigger>
                    <xf:label>Add to cart</xf:label>
                </xf:trigger>
                <xf:action ev:event="DOMActivate" if="normalize-space(instance('item')) != ''">
                    <xf:send submi