How do I unload a movie that is embedded 3 deep?

programming flash
1

I have movieA.swf, movieB.swf, movieC.swf.
movieB.swf loads movieC.swf.

I have a button in movieC.swf, which when clicked, I want it to unload itself.

I’ve tried loads of things… but nothing seems to work.
The empty movie in which movieC.swf gets loaded into movieB.swf is called, emptyHolder, say for example.

In movieB.swf, I’ve tried to do the following:

_root.dummyHolder = emptyHolder.

And then movieC.swf, the button code is:

myButton.onRelease = function() {_root.dummyHolder.unloadMovie();}

Unfortunately, this doesn’t seem to work.
Where am I going wrong? :frowning:

Thanks.

OM