[crazyone]

Originally Posted by pryoplasm

...........l 115VAC
...........l
...........l
...........l
......┌--+-----------┐
......l.....l................l
......\.....\...............\
......l......l...............l
......l......l...............l
......└---+----------┘
............l
............l this is going to the lights

please try to ignore the dots, and i hope this comes out ok
also, keep in mind, instead of another wire, the ends of the switches will go to a single wirenut that goes to the lights in the existing circut

the problem with this schemtic is, that in order to turn the lights off you will need to turn off all three switches, but being that is the jist of the plan it should work, Because with a parallel circuit voltage is the same in each branch. So again this should work. I emphasise should, because what should work and what does work can be two different things.