references = new HashMap();
    public void startElement(String uri, String local, String name,			     Attributes attrs)    {	if (frame_spec != null) {	    // inner structures are always slot values	    current_slot = name;	} else	if (name.equals("frameset")) {	    startFrameset(attrs);	} else if (name.equals("prototypes")) {	    // no-op	} else if (name.equals("prototype")) {	    startPrototype(attrs);	} else if (name.equals("slot")) {	    slot(attrs);	} else if (name.equals("fork")) {	    fork(attrs);	} else if (name.equals("frames")) {	    // no-op	} else if (name.equals("frame")) {	    startFrame(attrs);	} else if (name.equals("path")) {	    startPath(attrs);	}    }