Post the pageflow,
<h:commandButton id="cancel" value="#{messages.cancel}" action="cancel"/> should work.
View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4101633#4101633
Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4101633