[xsl]cascading evaluation of variables

["Janvier Majirus FANSI" <jmfansi@xxxxxxxxxxx>]

Hi all,
I have this following template rule within my stylesheet. I have a problem 
with a cascade evaluation of variable.

the template is:
<xsl:template match="object">
<xsl:variable name="select"><xsl:value-of select="@select"/></xsl:variable>

<xsl:variable name="path1"><xsl:value-of 
select="concat('document($sourcefile)/descendant-or-
self::',$select,'/parent::node()')"/>
</xsl:variable>

<xsl:variable name="essai"><xsl:value-of select="$path1"/>
</xsl:variable>

<xsl:value-of select="$path1"/>
<xsl:value-of select="$essai"/>
</xsl:template>

the results are:

<xsl:value-of select="$path1"/> return the string 
'document($sourcefile)/descendant-or-self::files/record/parent::node()'.
<xsl:value-of selec="$essai"/> return the same string instead of the nodes 
set resulting to its evaluation.

I expected that variable $essai was take like entry the result of evaluation 
of $path1, and return the results nodes set.

Could anyone know, please, what is wrong in my declaration?
I thank all of you in advance.

regards

Majirus

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