protected void btnLogin_Click(object sender, EventArgs e)
        {
            var validator = new Validator();
            if (validator.isValidLogin(tbLogin.Text)
                && validator.isValidPassword(tbPass.Text))
            {
                var userManager = new DbUserManager();
                string pass = Encrypt.CalculateMD5Hash(tbPass.Text);
                if (!validator.isAvailableLogin(tbLogin.Text) &&
                    userManager.IsValidUser(tbLogin.Text, pass))
                {
                    new PageManager().SetRoles(userManager, tbLogin.Text);
                    FormsAuthentication.SetAuthCookie(tbLogin.Text, cbRememberMe.Checked);

                    //If Admin
                    if (userManager.GetRoles(tbLogin.Text)[0] == new PermissionManager().GetPermission("Admin").Type)
                    {
                        Response.Redirect("~/Pages/AdminPages/StartPage.aspx");
                    }
                    else
                    {
                        if (string.IsNullOrEmpty(action))
                        {
                            string newRedirectUrl = "http://localhost:4308/Profile/Index";
                            Response.Redirect(newRedirectUrl);
                        }
                        else
                        {
                            string newRedirectUrl = "http://localhost:4308/Event/SaveEvent";
                            Response.Redirect(newRedirectUrl);
                        }
                    }
                }
                else
                {
                    lbMsg.Text = LogInErrors.AuthorizationError;
                }
            }
            else
            {
                lbMsg.Text = LogInErrors.IncorrectLoginOrPassword;
            }
        }