Unloading an external file

i’m stuck… :-/
i’m using external SWFs that load into my “container” layer when a button is pressed. these external SWFs will have a “close” button in them, and i want them to “unload” when the button is pressed. this is the code i’m using to load the movie, which works fine:

_root.container.loadMovie(_root.currMovie+".swf")

but how does one go about “unloading” a movie? how can i change this line of code to achieve this?

:b: