title: Saving 3 values on login form
body: <p>I have a login form which requires 3 values, customer id, username and password. If I let the browser save the password, it only remembers the username and password, but not customer id, so it has to be written again each time.</p>
  
  <p>I could just save the customer id in a cookie and read it from there, but that would be bad for those who don't want to save their credentials. Is there a way to handle this, for example detect if the user saved the credentials, and only then save the customer id to a cookie?</p>