This is a nice and clean example of HTML5 Local and Session storage. Remember how I described Local Storage in an earlier post.

HTML5 Local Storage, similar to HTTP session cookies, is for storing structured data on the client side. It consists of key value pairs that can be stored and retrieved from the browser. The API is extremely straight forward and basically consists of 4 main methods:

1. setItem(key, value)
2. getItem(key)
3. removeItem(key)
4. clear()

Local Storage and Session storage have the same basic API. The only difference is that Session storage is tied to the life of the session. Which means until you close the window or browser. Local Storage is stored indefinitely.

http://html5demos.com/storage

Remy Sharp