I had to use a " Flip flop " latch circuit to turn the pimeta on and off.
http://www.discovercircuits.com/PDF-FILES/4013cir.pdf
It was definitely a complicated route to add an on/off switch. I ended up using a max6816 to " debounce" the switch and make it much more reliable.
http://www.maxim-ic.com/appnotes.cfm/appnote_number/609