Hi Abel,



Thanks a lot for you answer, you gave lots of comments that are usefull 
for me.



Your solution defintely serves my needs I explained in my first mail. 
But as I wrote in my second mail there might be lots of 
attribute-combinations. So I would have to write a template for every 
possible combination which would make the stylesheed get very large. 
Maybe that's the only solution. But I would prefer a solutions with one 
template for all possible combinations like explained in my second mail 
with some default value for the variables that are not set by commandline.



regards,
Garvin

<xsl:param name="id" />



<xsl:template match="your-start">
   <xsl:apply-templates match="doc('factbase.xml')/facts/class" />
</xsl:template>

<xsl:template match="class[@id = $id]">
   ...do your stuff with a matching $id=@id for class-nodes...
</xsl:template>

<xsl:template match="facts[not(class/@id = $id)]/class">

  ...do your stuff when no @id matches the supplied $id, but class-nodes 
exist...

</xsl:template>



<xsl:template match="facts[empty(class)]">
  ...do your stuff when there are no class-nodes...
</xsl:template>