HTML PARSE - como pegar o valor de um campo que fik se atualizando?

SimpleUserAgentContext uacontext = new SimpleUserAgentContext();
		uacontext.setScriptingEnabled(true);
		uacontext.setExternalCSSEnabled(false);
		DocumentBuilderImpl builder = new DocumentBuilderImpl(uacontext);
		URL url = new URL(TEST_URI);
		URLConnection con = url.openConnection();
                 String TEST_URI = "http://www.HORA.com.br"
		InputStream in = con.getInputStream();

		try {

			Reader reader = new InputStreamReader(in, "UTF-8");
			InputSourceImpl inputSource = new InputSourceImpl(reader, TEST_URI);
			Document d = (Document) builder.parse(inputSource);
			HTMLDocumentImpl document = (HTMLDocumentImpl) d;
			Element element = document.getElementById("HORA_AGORA");
			System.out.println(element.getTextContent());
		} finally {
			in.close();
		}