> I thought the "x:a" was just an abbreviation for things like "w/html:a", "html:a", "tohtml:a", and "sml:a", substituting whatever you decided the macro name would be.
The "x:a" originally came from the example at http://en.wikipedia.org/wiki/SXML#Example, where I think it had another meaning - maybe something to do with XHTML... anyway, it's probably not important. You clarified that I wasn't missing something in the conversation (unless we both are ;).