private void Page_Load(object sender, System.EventArgs e)
{
  if (!Page.IsPostBack)
  {
   if (Request.QueryString["AcceptsCookies"]==null)
   {
    Response.Cookies["TestCookie"].Value = "ok";
    Response.Cookies["TestCookie"].Expires =
    DateTime.Now.AddMinutes(1);
    Response.Redirect("TestForCookies.aspx?redirect=" +
    Server.UrlEncode(Request.Url.ToString()));
   }
   else
   {
    labelAcceptsCookies.Text = "Accept cookies = " +
    Request.QueryString("AcceptsCookies");
   }
  }
}