FULL AND COMPLETE WAY TO DO IT COMPLETE WITH "CLICK THE RED X" ACTION
First open flash.
Make a new document.
On the first frame int the timeline there should be a blank keyframe, select it.
Press F9 to open the actions tab. type
stop()
into it. This stops the animation when it comes in.
Now press insert, New symbol. Select button and press ok. go to windows and open the library window. Now double click the new button you just made, its default name it symbol 1
No on the first frame draw how youwant your button to look when its not being messed with. On the second frame create a keyframe and drwa how you want it to look when the mouse goes over it. Now on the 3rd frame create a keyframe. Draw how you want your button to look when it is clicked. NO create a new keyframe oin the fourth frame. Draw the area you need to click in order fo the button to work. This frame will not be seen. Make it a filled in version of the first frame.
Now go back to the main stage [the <- button on the timeline]
Click and drag your button out of the library and put it on the first frame.
Now select your button
NOT THE FRAME. and press F9 to open the actions tab if its not already open.
Type this code into it.
on(release){
play()
}
Now create a blank keyframe after the first frame with the stop () code and the button on it. start your animation there.
You're done, test your movie.