an ex

<zk>
<window style="overflow-y:auto;">
		<borderlayout height="500px">
		<north>
		<tabbox mold="accordion" height="330px">
			<tabs>
				<tab label="Menu 1" />
				<tab label="Menu 2" />
				<tab label="Menu 3" />
			</tabs>
			<tabpanels>
				<tabpanel>
					<menubar orient="vertical">
						<menuitem label="Menuitem 1" />
						<menuitem label="Menuitem 2" />
					</menubar>
				</tabpanel>
				<tabpanel>
					<menubar orient="vertical">
						<menuitem label="Menuitem 1" />
						<menuitem label="Menuitem 2" />
						<menuitem label="Menuitem 3" />
					</menubar>
				</tabpanel>
				<tabpanel>
					<menubar orient="vertical">
						<menuitem label="Menuitem 1" />
						<menuitem label="Menuitem 2" />
					</menubar>
				</tabpanel>
				</tabpanels>
		</tabbox>
		</north>
		<south size="20%">
		<window height="30px">
		<grid>
			<columns>
				<column />
				<column />
			</columns>
			<rows>
				<row>
					<label value="Name:" /><textbox />
				</row>
				<row>
					<label value="Surname:" /><textbox />
				</row>
			</rows>
		</grid>
		</window>
		</south>
		</borderlayout>
		</window>
</zk>