Hi my toyota has probelms starting in the morning, my headlight beam strenght varies between weak and strong throughout the day, and this moning my hazard lights came on and would not go off and would not start at all unless I jump start it. I have a Toyota Tazz, 1.3 1993 model.

Sounds like the starter battery can't hold the charge from the alternator. A 1 hour highway drive should charge the battery enough - if it's the same the next morning it's up for replacement. Assuming there are no lights, radio or other devices on in the car during the night.

If the battery has been recently replaced - the alternator might not supply enough current anymore. In this case alternator brushes might need replacement or the voltage regulator has died. Usually the battery indicator lights up in this case. The battery indicator light can be checked by turning the ignition key one notch so all lights in the dash light up. If the battery indicator doesn't light the lightbulb might be dead.