[Zope] How do i test sequence-number

Please what is wrong with this code: <dtml-in newsSummary> <dtml-var sequence-number> <dtml-if expr="<dtml-var sequence-number> <= 5"> <a href="&dtml-absolute_url;"> <dtml-var title></a><br /> <br><br><dtml-var author> <dtml-var summary><br><br> </dtml-if> </dtml-in> This the error i got invalid syntax (, line 1) Thanks Kamal