xsl:key within <xsl:for-each select="xalan:nodeset...

Hello ppl

I am tryin to call a xsl:key within 
<xsl:for-each select="xalan:nodeset($myVar)/myElement">

like..
<xsl:for-each select="xalan:nodeset($myVar)/myElement">
 <xsl:value-of select="key('names',nameid)/name"/>
</xsl:for-each>

The value-of select produces no result.
and if i keep this out of the for-loop( of the xalan:nodeset ) with a hard 
coded value of the name id  like..
 <xsl:value-of select="key('names','1')/name"/>
i would get the required result.
within the above for loop even the hard coding doesnt work.

Is there any thing i am missing out regarding the behaviour??? Is it not 
possible to refer to the key like this from the for loop?

in this perticular case if i want to refer to the key, then what should i do ?

FYI..
key is declared as..

<?xml version="1.0"?>
<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform" 
xmlns:xalan = "http://xml.apache.org/xalan" exclude-result-prefixes="xalan">
<xsl:output method="text" omit-xml-declaration="yes"/>
<xsl:key name="names" match="/students/namelist/name" use="@id"/>..

and the namelist element looks like
<students>
<namelist>
 <name id = "1">John</name>
 <name id = "2">Linda</name>
</namelist>
</students>
 
Thanks for your help






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