private void SetRememberedUserCookie()
{
HttpCookie user = new HttpCookie("CommentUser");
user.Values["Name"] = this.tbName.Text;
user.Values["Url"] = this.tbUrl.Text;
if(this.tbEmail!=null)
user.Values["Email"] = this.tbEmail.Text;
user.Expires = DateTime.Now.AddDays(30);
Response.Cookies.Add(user);
}