public void InsertRoutes(string airportID, string airname, string aircity, string aircountry, string airIATA, string airICAO, string airlatitude, string airlongitude, string airaltitude, string airtimezone) //potrebna izmena naziva
{
string sql = SQLHelper.InsertRout(airportID, Guid.NewGuid().ToString(), aircity, aircountry, airIATA, airICAO, airlatitude, airlongitude, airaltitude, airtimezone);
SQLHelper.ExecuteCommand(sql);
}