Why are all these lights on?

[kaiser]

I went to start up my 91 LS this morning and when it started up my brake, battery low oil and radiator light all stayed on. The same thing happened yesterday but i just turned off the car and started it up again and they turned off. But this time they wont turn off. The car still feels like it runs normal but im worried that something is wrong. Any ideas on what it might be?

 

[Lextreme II]

Alternator is about to died....

 

[B-FISH]

Alternator is about to died....

dam! cold hearted.haha