Controlling main swf from a loaded swf?

Heya all, I’m new here hope somebody could help me to solve this problem I’m having. >_<

So I have an SWF loaded into my main SWF by using this command:
[COLOR=Red]this.createEmptyMovieClip(“here”,1);
here.loadMovie(“subflash.swf”);[/COLOR]

Now what I wanted to do is to hide the button that loads the “subflash.swf” when its being clicked. And show the button again when I close the “subflash.swf”.

For your information, I have made a button in “subflash.swf” to close it using the following command:
[COLOR=Sienna]_root.here.unloadMovie(“subflash.swf”);[/COLOR]

The thing is… if I don’t hide the button, user can click on the button and the whole “subflash.swf” will be reloaded, i want to avoid that.

I’m kinda new with flash, so far I have no idea how to solve this problem… hopefully someone can enlighten me. XD