public static World[] getWorlds() throws IOException {
        DataInputStream in = new DataInputStream(new URL(
                "http://www.runescape.com/slr.ws?order=WMLPA").openStream());
        in.skip(4);
        World[] worlds = new World[in.readShort()];
        for (int i = 0; i < worlds.length; i++) {
            int j = in.readShort();
            StringBuffer prefix = new StringBuffer();
            byte b = -1;
            while ((b = in.readByte()) != 0)
                prefix.append((char) b);
            worlds[i] = new World(j & 0x7FFF, prefix.toString(),
                                  (j & 0x8000) != 0, in.readShort());
        }
        return worlds;
    }