private void empleadosToolStripMenuItem_Click(object sender, EventArgs e)
{
if (empleados == null)
{
empleados = new frmEmpleados();
empleados.MdiParent = this;
empleados.FormClosed += new FormClosedEventHandler(empleadosFormClosed);
empleados.Show();
}
}
void empleadosFormClosed(object sender, EventArgs e)
{
empleados = null;
}
