Hello everyone

I have a 2007 monte carlo and the power windows stopped working. First the driver side stopped working and then 5 minutes later the passenger side stopped working. I replaced the fuses first, but that didnt work. I had someone look at them and they were nice enought to roll the windows back up and let me know its not the motor. Okay so today my friend hit the button, which usually doesnt work and the window rolled down and wont go back up I was going to replace the switches this weekend, but I was wondering if I would be wasting my time. I was reading about relays, but I can't seem to figure out which relay is which and not knowing much about them I dont want to mess anything else up. Any advice/Help would be greatly appreciated.

Thanks Kristine