private void JAnul_Click(object sender, EventArgs e)
 {
     var kalibrering = new Kalibrering();
     kalibrering.Show();
     this.Hide();
     //Application.OpenForms["Form1"].Close();
 }
 private void NEJnul_Click(object sender, EventArgs e)
 {
     var kalibrering = new Kalibrering();
     kalibrering.Show();
     this.Hide();
 }