private void mascotasToolStripMenuItem_Click(object sender, EventArgs e)
{
if (abmMascota == null)
{
abmMascota = new frmMascota();
abmMascota.MdiParent = this;
abmMascota.FormClosed += new FormClosedEventHandler(abmMascota_FormClosed);
abmMascota.Show();
}
else
{
abmMascota.Activate();
}
}
void abmMascota_FormClosed(object sender, FormClosedEventArgs e)
{
abmMascota = null;
}