Having trouble advancing the timeline with keypresses

1

I have a menu (that contain buttons) that slides in when the bottom of the screen is rolledOver. The buttons on the sliding menu work to advance the timeline, but I also want the timeline to advance when a key on the keyboard is pressed (the spacebar, for example). That is the part I can’t get to work. I tried to attach the “onKeypress” function, but it isn’t working. Can someone advise me into what I’m doing wrong? I attached an swf. Thanks alot!