RE

  @EventHandler
  public void kitSigns(PlayerInteractEvent e)
  {
    Player p = e.getPlayer();

    if ((e.getAction() == Action.RIGHT_CLICK_BLOCK) &&
      ((e.getClickedBlock().getState() instanceof Sign))) {
      Sign s = (Sign)e.getClickedBlock().getState();
      if ((s.getLine(0).equalsIgnoreCase("§0[ §aKit §0]")) &&
        (s.getLine(1).equalsIgnoreCase("PvP"))) {
        Bukkit.getServer().dispatchCommand(Bukkit.getServer().getPlayer(p.getName()), "pvp");
      }
      if ((e.getAction() == Action.RIGHT_CLICK_BLOCK) &&
    	        ((e.getClickedBlock().getState() instanceof Sign)) &&
    	        (s.getLine(0).equalsIgnoreCase("§0[ §aKit §0]")) &&
    	        (s.getLine(1).equalsIgnoreCase("Archer"))) {
    	        Bukkit.getServer().dispatchCommand(Bukkit.getServer().getPlayer(p.getName()), "archer");
    	      }