var RADIUS = 100;

var ball;

function start(){
	ball = new Circle(RADIUS);

	setTimer(draw, 100);

	add(ball);
}

function draw(){
    ball.move(Randomizer.nextInt(getWidth()/2, getHeight()/2), Randomizer.nextInt(getWidth()/2, getHeight()/2));
    ball.setColor(Randomizer.nextColor());
}