private void button1_Click(object sender, EventArgs e)
 {
     Mamirmi_Registro nn = new Mamirmi_Registro();
     nn.Show();
     this.Hide();
 }
 private void btn_NuevoEmpleado_Click(object sender, EventArgs e)
 {
     Mamirmi_Registro nn = new Mamirmi_Registro();
     nn.Show();
     this.Hide();
 }