major trouble with my 2002 saturn Ls

i own a 2002 Saturn Ls...this is the first time i have had a major problem so the car has had no previous repairs done. One day ago, as i was driving, my AC stopped blowing cold air, it still was blowing, just not cold, about 4 hrs later, again as i was driving, the radio, the interior lights, the head and tail lights and ALL of the dashboard lights started to flicker on and off and then slowly went dead, today the car wont start. i got a jump start but once i unhooked the jumper cables the car died in a few min...help please? :(