Someone

CharacterMC = _root.createEmptyMovieClip('CharacterMC'+Algebra.Random(1, 1000), Depth.Next());
keyListener = new Object();
keyListener.onKeyDown = function() {
	x = Key.getCode();
	//trace("You hit: "+x);
	if (x != 37 && x != 39) {
		CharacterMC.loadMovie("ChrisStandJUMPY.swf");
	}
	if (x == 37) {
		CharacterMC.loadMovie("ChrisWalkBkward.swf");
		//trace(x);
	}
	if (x == 39) {
		CharacterMC.loadMovie("ChrisWalk.swf");
		//trace(x);
	}
};
Key.addListener(keyListener);