def self.login(email, password)
    hashed_password = hash_password(password || "")
    @user = find(:first, :conditions => ["email = ? and hashed_password = ?", email, hashed_password])
    @user.datelastlogin = DateTime.now
    @user.save
    @user
  end

  def try_to_login
    User.login(self.email, self.password)
  end