public void registerHealRegion(String arena, HealRegion healRegion) {
		if (getHealRegion(arena) != null) {
			getServer().getScheduler().cancelTask(getHealRegion(arena).getTimer());
		}
		if (healRegion != null) {
			arenas.get(arena).setHealRegion(healRegion);
			healRegion.startTimer();
		}
	}