Debug.output("no projection stack listeners");
    protected void fireProjectionStackEvent(String command) {	if (projListeners.size() == 0) {	    Debug.output("no projection stack listeners");	    return;	}	ActionEvent event = new ActionEvent(this, 0, command);	Iterator it = projListeners.iterator();	while (it.hasNext()) {	    Debug.output("Firing " + command + " to listener");	    ((ActionListener)it.next()).actionPerformed(event);	}    }