F70-ZK-2007: Popup support toggle type
http://tracker.zkoss.org/browse/ZK-2007
Merge branch 'F70-ZK-2007' of git://github.com/RaymondChao/zk
F70-ZK-2007: Popup support toggle type
http://tracker.zkoss.org/browse/ZK-2007
Merge branch 'F70-ZK-2007' of git://github.com/RaymondChao/zk
Merge branch 'master' of github.com:zkoss/zk
fine tune