public function hasVoted($user) {
		$votes = elgg_get_annotations(array(
			'guid' => $this->guid,
			'type' => "object",
			'subtype' => "poll",
			'annotation_name' => "vote",
			'annotation_owner_guid' => $user->guid,
			'limit' => 1
		));

		if ($votes) {
			return true;
		} else {
			return false;
		}
	}