if current frame == 1 dosomething ... else (currentFrame ==2) do something else. Not working.

Im having a little bit of trouble trying to make a button give me different results based on what frame the main timeline is on.

I am trying to get a button to go to a different link based on what frame the main timeline is on.  If I am on frame 5 It will trace back "4" .. that is fine but other frames trace back the frame number and also 4.

frame 2 click of button traces back 1 and 4

frame 3 click of button traces back 2 and 4

frame 4 click of button  traces back 3 and 4

frame 5 click of button  traces back 4

thanks for your advice.

function buttonClicked(e:Event):void
{
     if(currentFrame == 2)
     {
          trace("Clicked 1");
     }
     else if(currentFrame == 3)
     {
          trace("Clicked 2");
     }
     else if(currentFrame == 4)
     {
          trace("Clicked 3");
     }
     else (currentFrame == 5)
     {
          trace("Clicked 4");
     }
}