<?php
	abstract class AchList extends RenderNodeIterator {
		protected $child_done = array();
		protected $child_open = array();

		function getDone() {
			return $this->child_done;
		}

		function getOpen() {
			return $this->child_open;
		}

		function hasOpen() {
			return (sizeof($this->child_open) != 0);
		}

		function hasDone() {
			return (sizeof($this->child_done) != 0);
		}
	}
?>