Heppa,

> Hmmm.... No. Since the order of the result should be like 
> above and then
> find the latest concerning both date and time+ select it's 
> topic element 
> value. 

Yes, but *where* do you want to do that? Inside the template selection that generates that list, or outside? If it's the latter, then 

variable name="latest"
  for-each select="message"
    sort select="the xpath to sort the data"
    sort select="the xpath to sort the time"
    if test="position() = last()"
       value-of select="topic"

will set the $latest variable to the value of the topic element of the latest message.

Cheers,

Santtu

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