title: How to update url if part of the page is changed?
body: <p>I would like to change part of my page when user clicks a link with jquery ajax. How can I change the url accordingly without full page reload (url should be changed to page1, page2 and so on)? Server side is GAE.</p>
  
  <p>Looks like I need to <a href="https://stackoverflow.com/questions/6118693/how-to-change-url-without-refresh-page">change url hash</a> with javascript:</p>
  
  <pre><code>location.hash = "page2"
  </code></pre>
  
  <p>How to get this value with GAE?</p>