Two men face multiple charges after being arrested in connection with an early morning car crash Thursday at Northampton's Jackson Street School.  The police found the man had crashed their car through a fence before stopping at the school's brick wall.  The crash did not disrupt classes.  32-year old Frederick Williams of Palmer is charged with operating under the influence and negligent operation of a motor vehicle.  His passenger, 24 year old Robert Carter of Springfield was arrested on charges of disorderly conduct and assaulting a police officer.  Both pleaded not guilty.