> What I really want then, is whatever (if it exists) the XSLT 
> equivalent in
> a <a href="foo.php3?{FOR-LIKE-THING}"> 

Just do:

<xsl:variable name="thing">
  <xsl:for-each>
     ...
  </xsl:for-each>
</xsl:variable>
<a href="xyz?{$thing}">

Mike K


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