Frame navigation with key press

let's say from frame one I want to go to frame two. But instead of clicking on a button with a mouse, I use the key binds instead. Problem is when I press on the keys, it doesn't work.

Heres the code I tried to reenact.

import flash.events.KeyboardEvent;

import flash.ui.Keyboard;

function keyDownHandler(e:KeyboardEvent):void

{

     if (currentScene.name == "Frame 1")

     {

          if (e.keyCode == Keyboard.E)

               gotoAndStop(2);

     }

     else if (currentScene.name == "Frame 2")

     {

          if (e.keyCode == Keyboard.F)

               gotoAndStop(3);

     }

     else if (currentScene.name == "Frame 3")

     {

          if (e.keyCode == Keyboard.G)

               gotoAndStop(4);

     }

}

stop();

if (!stage.hasEventListener(KeyboardEvent.KEY_DOWN))

     stage.addEventListener(KeyboardEvent.KEY_DOWN, keyDownHandler);

Thanks