Applicative attribute

Hi,

I want to use some "applicative attributes" in XMLdocuments
that are processed with schemas.
The idea I found was to use a particular namespace for these attributes
without modifying my "target" schemas.

Something like this :

doc.xsd : targerNamespace = http://www.mutu-xml.org/mydoc
    describes doc components (content model) in this namespace
    an element test is only declared as empty witout attributes

doc.xml : 
  <doc xmlns="http://www.mutu-xml.org/mydoc" 
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xmlns:app=http://www.mutu-xml.org/mydoc/appl
    xsi:schemaLocation="http://www.mutu-xml.org/mydoc doc.xsd">
    <test app:id="1"/>
</doc>

But it is rejected by a validator (such as Xerces) indicating that
  app:id us not allowed to appear in element 'test'
I am ok with this message... but is there a way to indicate that all
attributes of a namespace ( particlular one or any other than the targetNamespace)
 must be ignored ?

any idea ?

thanks in advance

regards

-- bruno --
Bruno Chatel
Tel : (+33) 4 96 11 14 57
bcha@chadocs.com
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