//===================================================================================
private void ShifrViginerPolyABCToolStripMenuItem_Click(object sender, EventArgs e)
{
FormViginer fv = new FormViginer
{
MdiParent = this
};
fv.Show();
}
//================================================================================================================================
private void NewCryptoToolStripMenuItem_Click(object sender, EventArgs e)
{
FormViginer form2 = new FormViginer();
form2.Show();
}