If the browser exposes and allows you to further extend HTMLElement extensions
such as HTMLTableElement, then yes. But I wouldn't bother with it because
you're not going to get full BC and have to implement get('tag') as a failsafe
anyway.
If you plan to use document.id() everywhere (thus assuming no extended natives
at all) you could add the tagName check inside the wrapper and then make it
seem transparent to the outside. This, too, is a waste of time IMO. Just use
get('tag') if you want this feature to be compatible with all Moo-supported
browsers.
-- Sandy
