title: Is it possible to asynchron repaint a website (not blocking the UI)?
body: <p>Lets say I make an Ajax call. The handler for the response could be this:</p>
  
  <pre><code>function handleAjaxResponse(data) {
      //Do changes to the dom, wich takes 2 seconds
  }
  </code></pre>
  
  <p>Until the Response is in coming, everything is fine. The problem is in handling it.</p>
  
  <p>My problem is with the latest Versions of <em>Internet Explorer</em> and <em>Firefox</em>. This browsers, block the UI Process until <code>handleAjaxResponse</code> is full executed. With block I mean, I can do nothing, the website is hanging.</p>
  
  <p>I found out, that <em>Google Chrome</em> has no problem with this.</p>
  
  <p>So is there a way, to repaint the document, without blocking the UI Process in FF and IE?</p>