jQuery Forum

I'm starting with jQuery mobile. I have a simple web site with jQuery 1.8.2 and I want to putting some jQuery Mobile 1.2 elements (a button, a checkbox,..) in login page for try the library. 

The unique change that I have done: Include the .js and .css jquery-mobile files. All works correctly, but when the login is realized for the user and the next page loads, the elements of this page don't have css format. Although the problem is solved refreshing the page, I have used the Chrome inspector to see the html loaded and I have surprised me because the html is a html combinated of the login and current page when the content is not correct.