//Store "something" to the local storage under the name "stored_item".
localStorage["something"]="stored_item";

// Get "item" from the localStorage item "something";
var stored_item = localStorage["something"];

// Clear the local storage variable "something" 
localStorage.removeItem("something")

http://fatfolderdesign.com/295/html5/making-offline-sitesapplications

This is just a simple explanation of how to use the HTML5 local storage in javascript. The link has a more thorough explanation and an example for those interested. The examples to save, retrive, and clear are marked below.

Local Storage in HTML5

javascript, jquery, html5

JavaScript