public static boolean isHTML(String s) {
		if (isNull(s)) {
			return false;
		}

		if (((s.indexOf("<html>") != -1) || (s.indexOf("<HTML>") != -1))
				&& ((s.indexOf("</html>") != -1) || (s.indexOf("</HTML>") != -1))) {

			return true;
		}

		return false;
	}