@EventHandler
	public void onPlayerInteract(PlayerInteractEvent e) {

		Player p = e.getPlayer();
		@SuppressWarnings("deprecation")
		Block block = p.getTargetBlock(null, 20);
		if(p.getInventory().getItemInHand()== null){
			if(e.getClickedBlock().equals(Material.MOB_SPAWNER)){
				if(block.equals(Material.MOB_SPAWNER)){
					if(e.getAction().equals(Action.RIGHT_CLICK_BLOCK)){
						openGui(p);
					}
				}
			}
		}
	}