public static void addurl(URL url) {
		ResSource src = new HttpSource(url);
		final CacheSource mc = prscache;
		if (mc != null) {
			src = new TeeSource(src) {
				public OutputStream fork(String name) throws IOException {
					return (mc.cache.store("res/" + name));
				}
			};
		}
		chainloader(new Loader(src));
	}