Docs for namespace and other processing instructions?

[Jeffrey E. Sussna]

I have seen several references to the processing instruction "<?xml:namespace". I have also read the "Namespaces in XML" spec, which discusses the "xmlns:" attribute. The relationship between the two is not clear to me. My confusion may be connected to the fact that I have been unable to find any formal documentation of "<?xml:namspace" or other processing instructions. Is there any such formal documentation?

TIA,
Jeff Sussna

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Kuantech, Inc.                            http://www.kuantech.com
Jeffrey E. Sussna, Principal                     jes at kuantech.com

Distributed Content Architectures for Dynamic Online Applications
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