5.0 Menubar IE7 非正常显示

          <zk>
	<menubar id="menubar" width="200px">
		<menu label="Project" image="/img/Centigrade-Widget-Icons/Briefcase-16x16.png">
			<menupopup>
				<menuitem image="/img/Centigrade-Widget-Icons/BriefcaseSpark-16x16.png" label="New"
					onClick="alert(self.label)" />
				<menuitem image="/img/Centigrade-Widget-Icons/BriefcaseOpen-16x16.png" label="Open"
					onClick="alert(self.label)" />
				<menuitem image="/img/Centigrade-Widget-Icons/DisketteBlack-16x16.png" label="Save"
					onClick="alert(self.label)" />
				<menuseparator />
				<menuitem label="Exit" image="/img/Centigrade-Widget-Icons/DoorOpen-16x16.png" onClick="alert(self.label)" />
			</menupopup>
		</menu>
		<menu label="Help" image="/img/Centigrade-Widget-Icons/QuestionmarkButton-16x16.png">
			<menupopup>
				<menuitem label="Index" onClick="alert(self.label)" />
				<menu label="About">
					<menupopup>
						<menuitem label="About ZK"
							onClick="alert(self.label)" />
						<menuitem label="About Potix"
							onClick="alert(self.label)" />
					</menupopup>
				</menu>
			</menupopup>
		</menu>
		<menu image="/img/Centigrade-Widget-Icons/Spyglass-16x16.png">
			<menupopup>
				<menuitem label="Index" onClick="alert(self.label)" />
				<menu label="Color Picker" content="#color=#184dc6"/>
			</menupopup>
		</menu>
	</menubar>
	<checkbox label="Vertical orient">
		<attribute name="onCheck">
			menubar.orient= self.checked ? "vertical" : "horizontal";
			menubar.width = self.checked ? "100px" : "200px";
		</attribute>
	</checkbox>
</zk>