flash actionscript: I'm trying to invoke a function in another movieclip. I have two instances
that act as buttons ( A & B) of a single library item. Each instance has a
frame with actionscript that contains a function. I'm trying to invoke a
function in A and make it do something when B is clicked.

Here's my actionscript to invoke the function in A from B:

_root.A.navbtnClicked();


This doesn't seem to be working. I think it has something to do with the path
but I'm not sure what.