XSL node reference problem

Hi everybody !
First, I will introduce myself, my name is Paul, i'm a french student
(Master of computer sciences) and i work with xslt for one month so be cool
with my bad English and my low level in XSLT, thanks !

so i have some trouble for 4 days with this problematic :
I have an XML file like that :
<FILE>
      <SCALAR>
            <LABEL>toto</LABEL>
            <VALUE>123</LABEL>
      </SCALAR>
      <SCALAR>
            <LABEL>tata</LABEL>
            <VALUE>456</LABEL>
      </SCALAR>
      <STRUCT>
            ...
      </STRUCT>
      <SCALAR>
            <LABEL>titi</LABEL>
            <VALUE>789</LABEL>
      </SCALAR>
</FILE>

and i have done a XSL Template that permitt me to obtain the path of a
specific SCALAR :
<xsl:template name="chercheNode">
  <xsl:param name="nom"/>
  <xsl:value-of select="descendant::*[ (self::struct or self::scalar) and
label =$nom ]"/>
</xsl:template>

And I call this one with this :

<xsl:variable name="tata">
  <xsl:call-template name="chercheNode">
     <xsl:with-param name="nom">tata</xsl:with-param>
  </xsl:call-template>
</xsl:variable>

I have the node that i would have BUT i can't apply

<xsl:for-each select="$tata">
  <xsl:value-of select="./value"/>
</xsl:for-each>

because it result with a null value, the transformation don't return a
value.

I think it's a problem of copy ! perhaps i don't have a pointer on the node
but just a copy of it but i don't know how to obtain a reference ...

If you could help me, i will be very happy because i'll become mad with
this ... and all idea is good !

thanks !!!!






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