@command and close window

<zk>
	<window id="window" width="700px" title="@load(vm.title)" border="normal" apply="org.zkoss.bind.BindComposer" viewModel="@id('vm') @init('it.eng.fbm.viewmodel.MyVM')">
...
...
...
		<button label="${c:l('resultedit.button.save')}" onClick="@command('save')" ></button>
		<button label="${c:l('resultedit.button.undo')}" onClick="window.onClose()" ></button>
...
...
...
	</window>
</zk>

@Command
	public void save(@SelectorParam("#window") Window window) {
		try {
			// do buiseness logic
			window.onClose();
		} catch (ApplicationException e) {
			log.error(e.getMessage());
			e.printStackTrace();
		}
	}