Example 6.69 Extending Regions
<region:define id='PORTAL' template='portal.jsp'>
    <region:put section='banner' content='BANNER'/>
  ...
    <region:put section='footer' content='footer.jsp'/>
</region:render>

<region:define id='PORTAL_WITH_SPECIAL_FOOTER' region='PORTAL'>
    <region:put section='footer' content='specialfooter.jsp'/>
</region:define>
