Need Advice for a multiplayer game server configuration

I'll try to be as clear as possible, but english is notmy native language ;)

What I want to do is to create a "join this game" interface. This will consists of different pages :

1. The "Connect Page" : if a user is not logged-in, he'llbe redirected here.
2. The "General Page" : the players can join created games or can create his own game room.
3. The "Waiting Room" : when a player join or create a game, he goes to this waiting room.
4. The "In Game Page" : when the creator of the game thinks there's enough players, he launches the game and all those players are send in the game.

My problem here, is that I don't know if I should create a physical different page for each; or just have a single page and .html() everything.

For the moment, I have managed to create a secured connection and everything work fine. Exept that each time i change page, the session is destroy and I lose every datas.

Here is my rep for code: https://github.com/Babas/croa