Gas in the tank?
Voltage Regulator output is: ?
Was the proper polarity observed when reconnecting the battery ... red to positive, black to negative.
Bad starter motor -
Any spark at the plugs?
Check your wire from battery to starter, sounds like it may have been pulled loose.
UR ALARM IS MALFUNCTIONING
If all you did was disconnect and reconnect the battery, it should function as normal. That is, assuming you disconnected the ground (negative) first when you took the battery out and reconnected the positive side first when replacing the battery. If you didn't, there's a possibility you toasted your ECM.
the battery job is to start the car so the alternator will kick in after the car is running
That could be the alternator or the battery. Try jump starting your car with another car's battery. If it still does not start, it is probably the alternator. If it starts, your battery is dead.
disconnect the battery and reconnect. when the battery is reconnected within 20 secinds turn the ignition on and press the immobiliser button on the remote device ( the unlock button on the key ). that should reprogramme the receiver and the transmmitter.
Disconnect the negative terminal of the battery Leave it disconnected for an hour. (The amount of time it takes to replace the battery). Reconnect the negative terminal of the battery. This works because a transient (voltage spike, noise) is generated when the terminal is reconnected. This is not necessary when the battery is replaced because the negative terminal is normally the last connected. However, when a car's battery dies in storage for example and is recharged with disconnecting the battery, the car might not start because the computer is not running.
Yes, but there may not be enough power to start the engine.
check for loose connections
Certainly, a loose wire on the car battery can cause the car not to start.
Last Sunday my battery was dead, I got a jump start from a professorial battery charger, car started fine, got to church, after car would not start, had it towed to where I can buy a new Battery, car still will not start, where is the starter relay?, is there a fuse link for the starter any where?
If the battery is sufficiently charged, it'll still start the car. However, it won't run for very long... the battery will be providing electricity for things such as the ECMs, spark plugs, etc., and it'll drain the battery pretty quickly.