@EventHandler
    public void onSignChange(SignChangeEvent e){
        if(e.getLine(0).equalsIgnoreCase("[TP]")){
            e.setLine(0, "§1[TP]");
        }
    }

    @EventHandler
    public void onInteract(PlayerInteractEvent e) {
        Player p = (Player) e.getPlayer();
        if(e.getAction() == Action.RIGHT_CLICK_BLOCK) {
            if(e.getClickedBlock().getType() == Material.WALL_SIGN) {
                Sign s = (Sign) e.getClickedBlock();
                if(s.getLine(0).equalsIgnoreCase("§1[TP]")){
                    Location location = new Location(s.getWorld(), Integer.valueOf(s.getLine(1)), Integer.valueOf(s.getLine(2)), Integer.valueOf(s.getLine(3)));
                    p.teleport(location);
                }
            }
        }
    }