Start and stop movie with key press

Can anyone please tell me how to do this?
I'm very new to flash.
Thankyou

Place this code in the timeline that you are trying to control--pressing and releasing a key will play/stop depending on which mode it is currently in.
stop();
var isPlaying:Boolean = false;
stage.addEventListener(KeyboardEvent.KEY_UP, keyUsed);
function keyUsed(event:KeyboardEvent)
if (isPlaying){
          stop();
     } else {
          play();
  isPlaying = !isPlaying;
If you have other questions, try to anticipate what you might be asked and include those details.

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