[Zope] dtml-in pagination

[Bobby]

Hi,

I'm trying to do pagination with dtml-in; could one of you show my why i can't get the next and previous button from my code below to work? 

Also, i need to do view per page: 1,2,3,etc. and allow the user select the number of records displayed per page (size) as well. Thanks in advance for any advice. 

<dtml-in "getTable(table=table,order_by=order_by,sort=sort)" size=10 start=0>
<dtml-if sequence-end>
<tr>
  <td colspan=3>
	<a href="?table=<dtml-var table>&order_by=<dtml-var order_by>&sort=<dtml-var sort>&start=<dtml-var previous-sequence>">previous</a>
	<a href="?table=<dtml-var table>&order_by=<dtml-var order_by>&sort=<dtml-var sort>&start=<dtml-var next-sequence>">next</a>
  </td>
</tr>
</dtml-if sequence-end> 
   
</dtml-in>