private void viewHelpToolStripMenuItem_Click(object sender, EventArgs e)
{
if (helpForm == null)
{
helpForm = new HelpForm();
helpForm.FormClosed += new FormClosedEventHandler(helpForm_FormClosed);
}
helpForm.Show();
}
void helpForm_FormClosed(object sender, FormClosedEventArgs e)
{
helpForm = null;
}
