i need help

i recently bought a 1997 eclipse. i have the antitheft codes, but when i bought the car there was no owner's manual to tell me how to deactivate the alarm if it ever got set off...today i left my windows down and walked back out to my car and unlocked it from the inside and the alarm went off...i dont know how to turn it off because i dont have the manual...ne help would be appreciated...thanx

just use the key in any of the lock cylinders (the doors or trunk).