> When I add the "exclude-result-prefixes='xs'" attribute to my 
> <xsl:stylesheet> element, instead of producing output I get 
> this error:
> 
> "XTDE0700: No value supplied for required parameter"
> 
> Please, what I am missing?

I would assume that the error message means what it says, and is unrelated
to the xs namespace issue.

Michael Kay
http://www.saxonica.com/