function display_children($parentID, $level) {

    // get tasks at this level..
    $task = new Task();
        $task->include_related('tasktype', array('id', 'title', 'controller', 'colour'), TRUE, TRUE);
        $task->include_related('flag', array('id', 'title', 'iconFile', 'colour'), TRUE, TRUE);
    $task->where(id, $parentID);
    $task->get();
    //$task is a object

    // save the path in this array
    $path = array();

        // see if this task has any children...
        $taskChildCheck = new Task();
            $taskChildCheck->where('parentTaskID', $taskID);
            $taskChildCheck->get();
            if($taskChildCheck->count())
            {
                // has children
                echo 'I have children!';
            }

   }
}