private String getDateString () {
       String retVal;
       int intVal;

        GregorianCalendar calendar = new GregorianCalendar ();

        retVal = String.valueOf(calendar.get(GregorianCalendar.YEAR)) + "-";
        intVal = calendar.get(GregorianCalendar.MONTH);
        if (intVal < 10) retVal += "0";
        retVal += intVal + "-";
        intVal = calendar.get(GregorianCalendar.DAY_OF_MONTH);
        if (intVal < 10) retVal += "0";
        retVal += intVal;

        return retVal;
    }