图片延迟插件 Jquery.lazyload.min.js

 1     <div  style="height:700px;">  
 2       <img src="img/grey.gif" data-original="http://www.ziyou.com.cn/ziyou/uploadImg/bberfq.jpg" width="765" height="574" alt="BMW M1 Hood"><br/>   
 3      </div>   
 4      <div>  
 5     <img src="img/grey.gif" data-original="http://www.ziyou.com.cn/ziyou/uploadImg/cvbcvb.jpg" width="765" height="574" alt="BMW M1 Hood"><br/>   
 6      </div>   <div>  
 7      <img src="img/grey.gif" data-original="http://www.ziyou.com.cn/ziyou/uploadImg/1322450338410.jpg" width="765" height="574" alt="BMW M1 Hood"><br/>   
 8     </div>   
 9  <script src="https://ajax.googleapis.com/ajax/libs/jquery/1.7.0/jquery.min.js" type="text/javascript" charset="utf-8"></script>   
10  <script type="text/javascript" src="/index/@py-z_class/jquery.lazyload.min.js"></script>  
11    <script type="text/javascript" charset="utf-8">   
12        $(function() {  
13          $("img").lazyload();  
14      });  
15   </script>