For the first time ever, I'm putting together a completementary landing page using Jquery Mobile. Still getting to grips with the framework but I have a question that I coudln't find the answer to anywhere.

First off there is one thing I'm not quite understanding:

Is the Jquery Mobile page hosted in the root directory on the site and when the user enters our site he goes automatically to the mobile site (if he is on a mobile device)?

And then my main question, is there a way for my users to switch back to the desktop (full) site after they're in the mobile site?