ActionScript "3" Button help!!

[the last stand]

I just switched from Action Script 2 to Action Script 3 to test a bit. But now I am sitting firmly on a really annoying problem.

I was going to make a small game and to do so, I created a Start button and then 3 buttons to choose which level to begin on. simply made a text in frame "1" and the converted it into a button with <Instance name> START_BUTTON. in frame 1 This is the code:

stop();

START_BUTTON.addEventListener(MouseEvent.CLICK, clickedButton);

function clickedButton (event:MouseEvent)
{
        gotoAndStop(2);
}

on frame "2" so I crerated 3 buttons with <Instance name> EASY_BUTTON, NORMAL_BUTTON and HARD_BUTTON. The code to this is:

EASY_BUTTON.addEventListener(MouseEvent.CLICK, clickedButton);

function clickedButton3 (event:MouseEvent)
{
        gotoAndStop(3);
}

NORMAL_BUTTON.addEventListener(MouseEvent.CLICK, clickedButton);

function clickedButton4 (event:MouseEvent)
{
        gotoAndStop(4);
}

HARD_BUTTON.addEventListener(MouseEvent.CLICK, clickedButton);

function clickedButton5 (event:MouseEvent)
{
        gotoAndStop(5);
}

when I click on START_BUTTON it takes me from frame "1" to frame "2" and thats great. BUT on frame "2" none of the three buttons is working. I can see that there are buttons when I drag the mouse over them but nothing happens when I click on em. Ofcourse I have done something on frame 3,4,5 so the problem is not that the buttons has none frame to go to.

What do i do wrong?

I am very happy for all the answers!!!

[friedegg3]

In all of your event listeners you are assigning the function 'clickedButton', so each button takes you to frame 2. Change the EASY_BUTTON event listener's function to 'clickedButton3', the NORMAL_BUTTON's function to 'clickedButton4', and so on.