Why did my 1997 honda civic die out while driving?

I have a 1997 honda civic and while driving the rpms dropped to 0 and the car eventually shut off. It's never happened before and now it cranks but doesn't turn over what do I do?

Do you have fuel pressure?

It could be anything Alex: You'll need to find out the problem is no spark or no fuel. The following links will help: The main relay and the ignition switch are the first two suspects:
http://www.tegger.com/hondafaq/mainrelayoperation/index.html
http://techauto.awardspace.com/ignitionswitch.html
http://easyautodiagnostics.com/honda/2.2L-2.3L/honda-ignition-system-tests-1