xsl:sort not working?

Hi,

I am having problem sorting on child-nodes (Article elements).
I would like to sort Article elements instead of Document elements
(below), by state-attribute. State is an integer.

<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform";>

        <xsl:output method="xml" version="1.0" encoding="UTF-8" indent="yes"/>

        <xsl:template match="/">
                <Documents>
                        <xsl:apply-templates select="Documents/Document">
                                <xsl:sort select="@state" order="ascending"/>
                        </xsl:apply-templates>
                </Documents>
        </xsl:template>

        <xsl:template match="/Documents/Document">
                <xsl:copy>
                                <xsl:copy-of select="@* | Article[(_at_)info = 
'food']"/>
                </xsl:copy>
        </xsl:template>
</xsl:stylesheet>

<xsl:sort select="@title" order="ascending"/>

-- 

Thanx,

[row.filter]