that is easy but what if the problem is that you need to detect a rollOver over a two lower movieclip below the _root.. like

_root.mcClip.mcClip2.mcClip3 (nested)

which the mcClip2 has a rollOut state and mcClip3 has a rollOver state also that everytime you rollOver on it plays animation in that movieClip. the purpose of the rollOut state in the mcClip2 is to play the gotoAndStop which close the whole movie... which is on frame 1.. and in the root timeline i have also 5 main navigation button which is the same situation as like this.. can anyone help me...