if using MM/YYYY don't show days

[smcclstocks]

maybe isn't a big deal but it would avoid some confusion when days aren't relevant. Seriously, this could be dumb but just tossing it out there to get your reaction.

[billdami]

Yeah, that makes sense. I could also see a use case for hiding the year selector; for instance if you have a birthday field that doesn't require the birth year.

Maybe instead of parsing the dateFormat to internally decide what columns/selectors to display, I'll just make it a little more straightforward and declarative, and expose 3 additional optional parameters: hideMonth, hideDay, and hideYear.

[smcclstocks]

sounds much better.