randInt.js

function randInt(min,max){
	var range = max - min;
	// it actually does work the other way...
	// if (range < 0) { throw new RangeError("min must be less than max"); }
	
	var rand = Math.floor(Math.random() * (range + 1));
	return min + rand;
}

randInt.min.js

function randInt(a,b){return a+Math.floor(Math.random()*(++b-a))}

Thanks man! This works like a charm!