Making an expanding and collapsing box

I'm trying to figure out how to create a simple box that has text in it that opens when a button is clicked and then closes when a close button is clicked. I thought this would be easy to research online but I haven't found any tutorials or direction that shows me how to do this. Does anyone have any links or step by step directions.

I attached an image to get a better idea of what I'm talking about.

http://i30.photobucket.com/albums/c3...ps4e655414.jpg

I actually figured out the first part and got the box to load but now I'm having trouble closing the box again. So I have the Popup MC load in to an empty MC in the main scene. In the Popup MC I have another MC "ClosePop1" with the AS:

on (release) {
this.removeMovieclip("Popup");
}

It's not closing the Popup MC. What am I missing? This is using AS2.