private void birthdaybutton_Click(object sender, EventArgs e)
{
assigned = 3;
if(description.Text.StartsWith("pascal ", StringComparison.InvariantCultureIgnoreCase))
description.Text = description.Text.Substring(7);
if(description.Text.StartsWith("marlies ", StringComparison.InvariantCultureIgnoreCase))
description.Text = description.Text.Substring(8);
if(!description.Text.StartsWith("verjaardag", StringComparison.InvariantCultureIgnoreCase))
description.Text = "Verjaardag " + description.Text;
marliesbutton.StopInfoFlash();
pascalbutton.StopInfoFlash();
birthdaybutton.StartInfoFlash();
description.SelectionStart = description.Text.Length + 1;
description.Focus();
}