RE: lang function in a named template

>     Marc> <xsl:choose> <xsl:when test="lang(ca)">Català</xsl:when>
>
> You need to say lang('ca') not lang(ca)
And you need to call it when an element (not the root node) is the context
node.

But if the otherwise branch isn't being called, then neither of these errors
is enough to explain the problem. Need to see more of your code.

Michael Kay
http://www.saxonica.com/