private void entradasSalidasToolStripMenuItem_Click(object sender, EventArgs e)
{
CambioPassword from = new CambioPassword("Contraseña Entradas/Salidas");
from.Show();
}
private void administradorToolStripMenuItem_Click(object sender, EventArgs e)
{
CambioPassword from = new CambioPassword("Contraseña administrador");
from.Show();
}