Section on XHTML modularization

Hi all,

I made some progress on my AI
"Felix to start a section on XHTML modularization for the XML i18n BP
document"

Please have a look at
http://www.w3.org/International/its/techniques/its-techniques.html#integration-its-xhtmlmod
and the files
http://www.w3.org/International/its/techniques/its-module.xsd (ITS
module relying on XHTML MOD)
http://www.w3.org/International/its/techniques/xhtml-plus-its.xsd
(driver to use that module with XHTML)

Note that the schemas are hand-crafted , the abstract definition as
well. Please have a look for mistakes. There is one issue I don't know
how to solve yet: what to do with existing HTML markup "dir" and "ruby"?
We could say "use the HTML markup instead of ITS", but what to do for
the "nested case" (e.g. the "its:locNote" element contains a "dir"
attribute). Another question related to this: do we need the ITS span
attribute? I'd say no, because it's purpose is fulfilled by adding local
ITS attributes to the "common" group of XHTML.

I think this is enough to prove "work in progress" and to go back to the
HTML WG. Let's talk about it today.

Regards, Felix.