I was having some issues with conditional fields here and here.
I thought I would make a little tester to show some ideas I had about fixing the javascript end of things.
A current limitiation of this approach is that it checks this.id in the javascript, so the keys are limited to ID, but eventually I think it'd be cool to support #whatever as well as .whatever in the keys, so that you could match anything, and hide/show multiple things with one declaration!
This would allow weird stuff like hiding all odd rows in a table.('tr:odd')
