Thanks fkeel. I appreciate you cleaning up my code and the explanations. You're right, it does compile without an error. The button still doesn't work, as I'm sure you know, so we're moving through the clues you provided trying to figure out the solution. This may be too beyond us at this point and we're running out of time.
If we can't get the code fixed in time, I'm wondering if there's an alternative way for a button to control this. Perhaps just put it between the battery and the Arduino?
Thanks for your help. If you think it should be working with the code you fixed, please let us know and we'll try to make sure all the pins are in the right places, etc.
Thanks again!