>I tested this approach. It works well.
>
>It basically collected the namespace I have in my XML.
>
>However, it also found another one:
>
>Namespace: xml
>Uri: http://www.w3.org/XML/1998/namespace
>
>I do not have that in the XML. Is this a default?

Yes. Snip:
"The namespace whose name is http://www.w3.org/XML/1998/namespace is bound by definition to the prefix xml"