Reminds me of: <a href="http://simsalabim.github.com/sisyphus/" rel="nofollow">http://simsalabim.github.com/sisyphus/</a><p>However, this appears to have more limitations than sisyphus, where you can simply call the library and have all form data saved to local storage:<p><pre><code> $('form').sisyphus();</code></pre>
<i>Depends on Modernizr.js, underscore.js, jQuery 1.7</i><p>Is the JavaScript library thing getting a little out of hand?<p>The functionality that this offers is but a few lines of unencumbered code with zero dependencies (obviously gracefully not doing anything if the browser supports it).