Converting an xml Parse Tree to a GDOME2 Tree

Where's the code that converts the parse tree produced by libxml2 to a 
GDOME2 tree? I've been looking all over the GDOME2 source code!

Thanks,

-- 
John J. Boyer; Executive Director, Chief Software Developer
Computers to Help People, Inc.
http://www.chpi.org
825 East Johnson; Madison, WI 53703