Have you got any idea why I can't make {weekNumber} commandlink in richface ?
<a4j:commandLink ajaxSingle="true" action="#{calendarData.actionWeekEvents}" reRender="Calendarform_">
<f:param name="week" value="{weekNumber}" />
<h:outputText value="{weekNumber}" style="color:blue" />
</a4j:commandLink>
