[Llex3D]

target_mc.onMouseDown = function(){
	start_xmouse = _root._xmouse;
	onMouseMove = function(){
		if ((Math.abs(_root._xmouse) - Math.abs(start_xmouse)) >= 20){
			trace ("action on moving right");
		}
		if ((Math.abs(_root._xmouse) - Math.abs(start_xmouse)) <= -20){
			trace ("action on moving left");
		}
	}
}
target_mc.onMouseUp = function(){
	onMouseMove = null;
}

Собственно и все дела