[xsl] namespace defaults

["Marc Lambrichs marc.lambrichs@xxxxxxxxxxxxx" <xsl-list-service@xxxxxxxxxxxxxxxxxxxxxx>]

We're a bit confused about namespacing. Suppose we have this:

<ns1:a 
xmlns:ns1="http://something.org/ns/1"xmlns:ns2="http://something.org/ns/2";>
  <ns2:b>
    <c>something</c>
  </ns2:b>
</ns1:a>

To what namespace does "c" belong to? I would say: a default one, if 
there is any. But what if there isn't one? In the latter case, here's 
our guess: there's no prefix, so it doesn't belong to any namespace. Right?

We've taking into account
http://www.w3.org/TR/xml-names/#scoping-defaulting
and
http://www.w3.org/TR/xml-names/#concepts

Cheers,
Marc