Ramesh B wrote:
...

   For extension function, could not find method
java.lang.String.node-set([ExpressionContext,] ).

<xsl:param name="langID" select="'12'"/>
<xsl:variable name="lang" select="document(xalan:node-set($langID))">
</xsl:variable>

You probably try to convert the string '12' to a
node set. This is not possible. Only RTF can be converted
into a node set.

Apart from this, why do you want to convert an
argument to the document function to a node set first?