public static string rectify(string s)
        {
            double lon;
            String[] split = new string[]{";"};
            string[] array = s.Split(split, StringSplitOptions.RemoveEmptyEntries);
           // lat = Convert.ToDouble(array[0]);
            lon = Convert.ToDouble(array[1]);

            int e = 0;

            for (; lon > 180; lon -= 360)
               e++ ;
            for (; lon < -180; lon += 360)
                e++;
            return array[0] + "," + lon.ToString("0.00") + "," + array[2];

        }