PLEASE HELP 96COBRA WONT START

Can anybody give me any ideas why my car wont start?
When i try to turn the ignition on I just hear a click. I thought it was
the battery but i measured it and its good. It doesnt even draw any current when the ignition is switched. While holding the igition in the on postion I played with clutch pressing and depressing until i got it to turn on. I used this same method a few more times but now I cant turn it on anymore. I checked the clutch pedal swith,
but it is still good. The only other things that i could think of is the start or the alternator.