public function callback($callback, $func, $args=array())
	{
		// Make sure the callback is set (this is protecting us when running in non-interactive mode and callbacks aren't set)
		if (!isset($this->callbacks[$callback]))
		{
			return false;
		}

		// Call function
		return call_user_func_array(array($this->callbacks[$callback], $func), $args);
	}