Ajax Requests Saved on Browser's History
<p>Is there an easy way to save ajax requests into a browser's history so that when you use the back button it will preserve the last state of the DOM?</p>

<p>Websites like twitter and digg that use an ajax pager have a usability flaw where if you click next page several times then click away from the site and then return using the back button, you lose your place in the viewport since the DOM is restored to the first initial request.</p>

<p>I noticed safari actually preserves the dom after a few ajax requests on some sites.<br>
Here is an example, Goto <a href="http://13gb.com" rel="nofollow">http://13gb.com</a>, Click next a few times then click on an image and then click your back button.  On webkit it preserved the last DOM state, but on gecko and ie it does not.  </p>

<p>What would be the easiest way to replicate this functionality on other browsers?</p>
