var fl_ToPlay_4:Boolean = true;

stage.addEventListener(KeyboardEvent.KEY_DOWN, keyPressed);

function keyPressed(e:KeyboardEvent):void{
 if(e.keyCode == 65)
 {
     var snd:Quiet = new Quiet();
         snd.play();
 }
 if(e.keyCode == 84)
 {
    if(fl_ToPlay_4)
    {
        gotoAndStop(2);
    }
    else
    {
        gotoAndStop(1);
    }
    fl_ToPlay_4 = !fl_ToPlay_4; //i think the problem is here when
 }

}