I think the error message is clear. But according to
http://www.exslt.org/str/index.html
the concat(node-set) should work with EXSLT.
But you weren't using EXSLT's str:concat() function, you were using the
(unnamespaced) concat() function from the core library.
Why Im trying with concat is that I need the string as a variable
and not in the output.
Then do what the guy showed you:
<xsl:variable name="x">
<xsl:for-each select="y">
<xsl:value-of select="."/>
</
</
<xsl:variable name="z" select="string($x)"/>
Michael Kay
XSL-List info and archive: http://www.mulberrytech.com/xsl/xsl-list