Making a swf unload itself

Ill try to explain as clearly as I can but forgive me if I'm
not too clear.
I am loading a swf into a movie clip which resides on my main
time line. I am using a MovieClipLoader object along with loadClip
that loads the swf when a button is clicked. It works great with no
problems.
truckMC.onRelease = function():Void {
MyMovieClipLoader.loadClip("external.swf",
"myMovieClipHolder");
My issue: there is a button inside my external.swf and when
clicked I would like for it to make itself(the external.swf) unload
itself... I don't want to make it's alpha 0 or visibility false. I
want the swf to actually "unload" itself and go away. I know the
button inside the external.swf works as I have used a trace
statement to confirm it. I just don't seem to know the exact term
to use to get the entire swf to vanish.
(button inside the external.swf)
closeExternalSWF.onRelease = function():Void {
trace("its been pressed");
Inside the button's onRelease function I have tried unload,
Ive also tried unloadClip but non of those worked for me.
Can someone give me some direction as to what I should use
for this?
Thanks in advance.

It works perfectly! Thank you Thank you Thank you!!

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(welcome to the stupid-error club. you're in good company.)
and, you're welcome.

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Hi everyone,
The title is pretty self explanatory. I know this subject I've been previously covered but it still unclear with the code I'm using. Please help.
This is the code I put on the main movie clip to load it:
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Making a swf unload itself

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