String[] getLinkTargets()
	{
		if (linkTargets == null) {
			final ArrayList<String> targets = new ArrayList<String>(2);

			if (pos != null) {
				for (int i = 0; i < pos.length ; i++)
					addLinkTargetIDs(targets, pos[i]);
			}

			linkTargets = targets.size() == 0 ? EMPTY_ARR : targets.toArray(new String[targets.size()]);
		}
		return linkTargets;
	}