private void zoneSpecialitéToolStripMenuItem_Click_1(object sender, EventArgs e)
        {
            this.Hide();
            specialite at = new specialite();

            at.Show();
        }
        private void zONESPECIALITEToolStripMenuItem_Click(object sender, EventArgs e)
        {
            this.Hide();
            specialite at = new specialite();

            at.Show();
        }