> This clarification raises a related naive question, though: What is the 
> proper use of copy-namespaces="no"? What namespace nodes will not be 
> copied as a result of using it, and in what sorts of situations would 
> that be necessary or desirable?


suppose your source looks like

<foo xmlns="ho"
     xmlns:a="hum"
     xmlns:b="ha"
     xmlns:c="zzz">
  <bar/>
<foo/>

Then depending on the value of copy-namespaces ,<xsl:copy-of  on the bar
element will return

 <bar xmlns="ho"/>

or

<bar xmlns="ho"
     xmlns:a="hum"
     xmlns:b="ha"
     xmlns:c="zzz"/>

which result is necessary or desirable depends of course on your needs
and desires.

David

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