Either use a4j:support nested inside your button using "onclick" or use an a4j:commandButton instead of an s:button. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4097130#4097130 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4097130