> but you could presumably use count(preceding-sibling::*)+1

Yeah, that's it, thanks!
This morning on my way to the university I had the same idea ... :-)
Btw, for using the expression as a sort key there's no need to add 1.

Best regards,
Oliver


/-------------------------------------------------------------------\
|  ob|do        Dipl.Inf. Oliver Becker                             |
|  --+--        E-Mail: obecker@xxxxxxxxxxxxxxxxxxxxxxx             |
|  op|qo        WWW:    http://www.informatik.hu-berlin.de/~obecker |
\-------------------------------------------------------------------/


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