/// <summary>
 /// Returns the nearest lender within a specified radius
 /// </summary>
 /// <param name="latitude"></param>
 /// <param name="longitude"></param>
 /// <param name="radius"></param>
 /// <returns></returns>
 public static LenderModel GetNearestLenderInRadius(double latitude, double longitude, double radius)
 {
     var dc = new BicikliDataClassesDataContext();
     return (from l in dc.GetLendersByDistance(latitude, longitude, radius)
             select new LenderModel()
             {
                 id = l.id
             }).FirstOrDefault();
 }