title: Avoid post back while doing a timer tick function
body: <p>i need to do update images in my site without doing post back in a page.So, i loaded the images in ad-rotator to toggl between images.</p>
  
  <p>I also used the timer tick function to refresh the images in the ad-rotator.</p>
  
  <p>But while timer tick function refresh the whole page is refreshed so that all functions that i declared in the page is reloaded.</p>
  
  <p>i need to only images in the ad-rotator images should refresh not the whole page.</p>
  
  <p>i need to avoid whole refresh of the page.
  Pls help me. </p>
  
  <pre><code>$(document).ready(function() {
      setInterval(function() {
          $('#&lt;% = addrotat.ClientID %&gt;').load(location.href + ' #&lt;% = addrotat.ClientID %&gt; ', '' + Math.random() + '');
      }, 5000);
  });
  </code></pre>