Here is the solution I came up with. The magic is in jsFunction's "bypassUpdates" attribute. <a4j:commandButton id="cmdRefresh" value="Refresh" reRender="lstDestination" /> becomes | <input type="button" value="refresh" onclick="getManagerId()" /> | <a4j:jsFunction name="getManagerId" | data="#{BackingBean.managerId}" | oncomplete="refreshManager(data)" | reRender="lstDestination" | bypassUpdates="true" | /> | <script> | function refreshManager(data) { | document.forms[0].lstDestination.value = data; | } | </script> I hope this helps someone :) View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4045610#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...