They're not mutually exclusive. Coffeescript[1], for example, compiles to javascript, but isn't javascript itself. I'd bet most browsers have a JVM installed

They're not mutually exclusive. Coffeescript[1], for example, compiles to javascript, but isn't javascript itself. I'd bet most browsers have a JVM installed as well, so there's that... [1]http://jashkenas.github.com/coffee-script/ http://jashkenas.github.com/coffee-script/