function joy_ball_y(argument0, argument1) {
	// joy_ball_y(id, ball)  [or joy_ball_y(id) for ball 0]
	//Returns the vertical movement (from -32768 to 32767) of the given ball.

	return external_call(global.ljoyBallY, argument0, argument1);

	//  NOTE THAT JOY'S IDs START FROM ZERO AND NOT ONE!!!




}
