public Frame(Tag tag){ super(tag); if ( knownTags == null ) { knownTags = new netscape.util.Hashtable(); registerTags(knownTags); }
public Frame(){ this(new Tag("FRAME"));
    public Frame(Tag tag){        super(tag);        if ( knownTags == null ) {            knownTags = new netscape.util.Hashtable();            registerTags(knownTags);        }    }