jQM - Flexslider example

HTML

<link rel="stylesheet" href="http://code.jquery.com/mobile/1.2.0/jquery.mobile-1.2.0.min.css" />
    <link rel="stylesheet" href="http://flexslider.woothemes.com/css/flexslider.css" />    
    <script src="http://code.jquery.com/mobile/1.2.0/jquery.mobile-1.2.0.min.js"></script>    
    <script src="http://flexslider.woothemes.com/js/jquery.flexslider.js"></script>    
    <div data-role="page" id="index">
        <div data-theme="a" data-role="header">
            <h3>
                First Page
            </h3>
            <a href="#second" class="ui-btn-right">Next</a>
        </div>

        <div data-role="content">
            <div class="flexslider">
              <ul class="slides">
                <li>
                  <img src="http://flexslider.woothemes.com/images/kitchen_adventurer_cheesecake_brownie.jpg" />
                </li>
                <li>
                  <img src="http://flexslider.woothemes.com/images/kitchen_adventurer_lemon.jpg" />
                </li>
                <li>
                  <img src="http://flexslider.woothemes.com/images/kitchen_adventurer_donut.jpg" />
                </li>
                <li>
                  <img src="http://flexslider.woothemes.com/images/kitchen_adventurer_caramel.jpg" />
                </li>
              </ul>
            </div>
        </div>

        <div data-theme="a" data-role="footer" data-position="fixed">

        </div>
    </div>   
 <ul class="slides">
 <li>  <img src="http://flexslider.woothemes.com/images/kitchen_adventurer_caramel.jpg" /></li>
 </ul>

CSS

.flexslider {height:300px;}
.slides li{
  height:300px;
}
.flexslider .slides img{
  width:auto!important;
  max-width:100%;
position:relative;
transform:translateX(-50%);
}

JavaScript

$(document).on('pageshow', '#index', function(){
setInterval(function(){
    $(".slides li img").each(function(){
    $(this).height(Math.random()*100+"%").css({top:Math.random()*100+"%", left:Math.random()*100+"%"});
    });
},21000);
    $(".slides li:not('.flex-active-slide') img").each(function(){
    $(this).height(Math.random()*100+"%").css({top:Math.random()*100+"%", left:Math.random()*100+"%"});
    });
    $('.flexslider').flexslider({
        animation: "slide",
        animationLoop: true,
        slideshowSpeed: 7000,
        
    });
});