Combined Code
	movieClip 5	{
		frame 1 {
			function hi() {
				if (hero._y < 340) {
					on_air = true;
				} else {
					on_air = false;
				}
				if (Key.isDown(39) | Key.isDown(68)) {
					hero._x += speed;
				}
				if (Key.isDown(37) | Key.isDown(65)) {
					hero._x -= speed;
				}
				if (Key.isDown(38) | Key.isDown(87)) {
					if (!on_air) {
						hero._y -= 100;
					}
				}
				if (on_air) {
					hero._y += 10;
				}
			}
			var hero = _parent.hero;
			var speed = 5;
			var on_air = false;
			setInterval(hi, 10);
		}
	}