func PostLoginHandler(rnd render.Render, r *http.Request, s *session.Session) {
username := r.FormValue("username")
password := r.FormValue("password")
fmt.Println(username)
fmt.Println(password)
s.Username = username
s.IsAuthorized = true
rnd.Redirect("/")
}
func LogoutHandler(rnd render.Render, r *http.Request, s *session.Session) {
s.Username = ""
s.IsAuthorized = false
rnd.Redirect("/")
}