JQuery Mobile + Phonegap Login Page

Question

I am creating an Android app that uses Jquery Mobile and Phonegap. I am working on a log in page with a couple of fields. How do people normally validate user info in a Phonegap + Jquery Mobile app? Do they use sqlite, localstorage? I can not seem to find any examples of login pages that uses sqlite with a phonegap application. I tried using the examples on the phonegap storage page, but I am still kinda lost. Can you any of you be so kind to give me a starting point or direct me to a resource that shows me how to create an authentication login page in a PhoneGap + JQuery Mobile application? Is this even the proper way to do a login page for a mobile web app? Thank you in advance.