private void helpToolStripMenuItem_Click(object sender, EventArgs e)
{
if (help == null)
{
help = new Help_Form();
help.Disposed += new EventHandler(help_set_null);
help.Show();
help.MaximizeBox = false;
help.MinimizeBox = false;
}
else
{
help.Activate();
}
}
private void help_set_null(object sender, EventArgs e)
{
help = null;
}