Flash CS5 Button Issue

Question

So I have been having some issues trying to design my flash website using flash professional cs5.
I have a movie clip of a rectangle that is 20 frames long, with a stop on frame 1, 10, and 20.  From frame 1-10, the box fades to 50% transparency from 0%, and drops down from the top of the screen (from 2px tall to 484px tall.)  From frame 10-20, the action reverses.
I have a button that, when clicked, causes the box to drop down, as it should.  The code I am using to do this is:
on (release) {
tellTarget ("../textboxdropinMC") {
gotoAndPlay(1);
This works, as expected, HOWEVER, when I click on the same button again, the box disappears.  It does not go back to frame 1 to play it again until you click on it a THIRD time.  What I need to happen is to have the button, upon a re-release, play the box animation from frames 10-20 (so it goes back up to the top and disappears).
My thoughts were to create a code in the box movie clip code that hides the original button once the box animation reaches frame 10.  Simultaneously, I could then have another identical button appear that would have the same code as the first button but gotoAndPlay(10); instead of 1.  Once the box animation got to frame 20, the second button would hide and the first button would come back.  What sort of coding would I need to do this?
My other option would be to make a simple "close" button to play frames 10-20, but even if I did this, it would not prevent the first button from making the box disappear if it is released a second time.  How would I be able to make the button NOT cause the box to disappear once it has already enacted the gotoAndPlay(1); command?  Or, are there any other ways to do this?
There is also a problem where, after the on release code is added to the button, it does not turn white as the other buttons do when the user hovers the mouse over top of it.  I can't seem to figure out why this is.
I am using action script 2.0, only because it is what I used in school--we never learned 3.0.
If someone can help me with this, I would be forever grateful!

Answer 1

There could be one of a few problems.  That is AS2 code, but you are posting in the AS3 forum.  So is it your intention to use AS3 or AS2?  In answering that, also describe where you have placed this code.