[xsl] writing error file

[Frank Marent <frank.marent@xxxxxxxxxxx>]

hello.

is there a simple way in xslt to append warnings and error messages  
to an (xml) error file? error file name should variable (current xml  
file name). the command xsl:message seems only to *display* messages  
during execution on the screen. but we would like to append messages  
to an (xml) file.

may the only way to use xsl:result-document or xsl:document for that?

regards
frank