Can you use DOM and SAX?

Has anyone combined DOM and SAX processing? Just a wild thought, but I am
wondering if it would beneficial to place the some processing on the server
(SAX ) and then pass the transformed XML to the browser for DOM processing.
The thought is that this could lighten the processing requirements on the
server. 

An example as to why you might want to do this would be to use SAX to
extract the necessary nodes from a very large XML file and create a smaller
XML file for the final transformation. Or else, you can use DOM processing
to encrypt your XML file to be transmitted via the Internet and SAX to
process it.

Just a thought....

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