> The namespace xmlns:xlink="http://www.w3.org/1999/xlink" was retired of
> "root" element and put in "stylesheet" element.
> Why? 

the xslt processor is explictly allowed to move namespace declarations
up the tree.

but that's fine, even there on your stylesheet element there is an  xlink
namespace node on the <root> element in your "son" stylesheet, and so
the final document should have the xlink declaration on its top level
element. If it doesn't it looks like a bug in your xslt system, which
are you using?

David

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