ChildWindow.zul

<?page title="Child Window" contentType="text/html;charset=UTF-8"?>
<zk>
  <window id="childwindow" title="Child Window" border="normal" mode="modal" width="20%">
		<label value="First Name"></label>
		<separator></separator>
		<textbox value="${arg.firstName}"></textbox>
		<separator></separator>
		<label value="Last Name"></label>
		<separator></separator>
		<textbox value="${arg.lastName}"></textbox>
		<separator></separator>
		<button label="Close" onClick="childwindow.detach()"></button>
	</window>
</zk>