"<fo:" and "<xsl:when" test for page numbers

Hi,

I'm creating pdf with xsl:fo.
I have a loop that is creating thousands of rows. On page 4, for example, I
want something more written in the cells.
How do I check for page numbers?

Something like:
<xsl:choose>
  <xsl:when test="pagenumber=4"> <!-- How do I test this???????
    <!-- do this, do that  -->
  .....


Thanks
Jonny



 XSL-List info and archive:  http://www.mulberrytech.com/xsl/xsl-list