title: rendering of divs in browser different
body: <p>I have a page with 2 divs : a div containing the menu , and a div containing the content.</p>
  
  <p>However, when i perform an action , i notice a strange difference , when doing a submit  :</p>
  
  <ul>
  <li><p>the content in the content div , remains until the new page is loaded , and then replaces all the content</p></li>
  <li><p>the content in the menu div , becomes empty the second i click on it , and then later is filled with the new content.</p></li>
  </ul>
  
  <p>This is annoying because it means the menu becomes blank for a tiny fraction of time.
  It would be better if the menu div had the same behaviour as the content div.</p>
  
  <p>Is there any known reason why this would be displayed differently ? The behaviour is the same in IE6 , IE8 and Firefox 3.6</p>