private void inicio()
{
dateTimePicker1.Format = DateTimePickerFormat.Custom;
dateTimePicker1.CustomFormat = "dd/MM/yyyy";
dateTimePicker1.Value = Program.fechaHoy();
txtCiudadDestino.Text = "";
txtCiudadOrigen.Text = "";
lblButacas.Text = "";
lblKilos.Text = "";
button1.Enabled = false;
button2.Enabled = true;
button3.Enabled = false;
dg.DataSource = null;
seleccionoViaje = false;
}