title: Triggering jQuery ONLY for handhelds
body: <p>I'm using <a href="http://srobbin.com/blog/jquery-plugins/jquery-backstretch/" rel="nofollow">jQuery Backstrech plugin</a> to implement full size background images to a responsive website.</p>
  
  <p>I want the jquery code to run ONLY for handheld devices, or only for viewports smaller than 480 px... can it be done?</p>
  
  <p>Here's the code i'm using to implement the script &amp; background image:</p>
  
  <pre><code>jQuery.noConflict();
  jQuery(document).ready(function(){
      jQuery.backstretch("www.url.com/images/bg.jpg", {speed: 150});
  });
  </code></pre>
  
  <p>How could i add some sort of jQuery conditional to make this code execute for clients with with of 480 pixels or less?</p>
  
  <p>thanks in advance for any help!</p>