<h:form id="form" prependId="false">

    <h:commandLink id="button2"
                   onclick="$('#myDialog').dialog('destroy');$('#myDialog').remove(); jsf.ajax.request(this,event,{execute:'@this', render:'myDialog_placeHolder'} ); return false;"
                   action="#{myBean2.doSearch}" value="press me for next ajax"
            >
    </h:commandLink>


</h:form>

<h:panelGroup id="myDialog_placeHolder">

    <h:panelGroup styleClass="myDlg" id="myDialog">
        <h:form id="form2" prependId="false">
            <h:panelGroup id="content">
                #{myBean2.refresh}

                <h:commandLink id="submitMe" value="Press me for more action" action="#{myBean2.doSearch}">
                    <f:ajax executed="@this" render="content" />
                </h:commandLink>
            </h:panelGroup>
        </h:form>
    </h:panelGroup>
    <script type="text/javascript">
        /**
         * we delay the dialog buildup slightly
         * that way everything should be updated in the dom
         */
        $("#myDialog").dialog();
    </script>

</h:panelGroup>