Yea, I don't see why it's not working; it doesn't seem like you're trying to get javascript <---> flash interaction going between each other, but just calling a JS method via Flash button.
This help?
http://scriptplayground.com/tutorial...ript-in-Flash/
Any debugging tools you're using? Maybe just put up a simple Javascript function:
function blah() { alert('Flash called me'); }
and try and call that from your flash navigation. Debug through the simple to what you want.
Or, here's another bump and someone will hopefully chime in with the answer.