I've been learning programming for a while and things are slow but steady. I only have a couple experiments that look something like a game (JavaScript,HTML5,CANVAS). One of the things I would like to establish this early in my process though is a basic level system to my games. I'm thinking like Atari, NES type simple.

mainMenu , level1 , level2 , ...

Later I'll work on including such screens as; titleScreen , pause , highScore. But for now just looking for the basics.

Any good articles/tutorial links would help. Or just a snippet of code I can look over.

Thank you kindly :)