<zk>
	<grid width="500px">
		<columns>
			<column />
			<column />
		</columns>
		<rows>
			<row>
				<cell />
				<datebox />
			</row>
			<row>
				<cell colspan="2">
					<hlayout>
						<button label="ok" />
						<button label="cancel" />
					</hlayout>
				</cell>
			</row>
		</rows>
	</grid>
</zk>