Alarm won't allow me to start car
 

Hi all, I am having a very hard time with my car. Every time I try to start my car, the alarm comes on and the car won't start. I tried locking and unlocking both doors with my key but, still won't start. The remote to the car is ancient and I doubt if it will work.The lock and unlock button in the car works when it feels like it so can't rely on that.. The car is a 1996 Chrysler Sebring Convertible JXI .. Please somebody help I got get to work Monday!!!!