private static java.lang.Boolean hasTarget(Link self) {
	if (self instanceof SceneLink)
		if (((SceneLink) self).getSceneLinkTarget() != null)
			return true;
		if (self instanceof ExhibitionModuleLink)
			if (((ExhibitionModuleLink) self).getExhibitionModuleTarget() != null)
				return true;
	return false;
}