public static Double getJsonDoubleValue(String json, String fName) {
        final JsonParser parser = Json.createParser(new StringReader(json));
        String key = null;
        String value = null;
        while (parser.hasNext()) {
            final Event event = parser.next();
            switch (event) {
                case KEY_NAME:
                    key = parser.getString();
                    break;
                case VALUE_NUMBER:
                    value = parser.getString();
                    //System.out.println("val=" + value);
                    if (fName.equals(key)) {
                        System.out.println("FORTEMP=" + value);
                        return Double.valueOf(value);
                    }
                    break;
            }
        }
        parser.close();
        return null;
    }