jQuery imitates Tmall to achieve stunning add to shopping cart_jquery

<script src="jquery.js"></script> 
<script src="jquery.fly.min.js"></script>

<div class="demo clearfix"> 
  <div class="per"> 
  <img src="images/1.jpg"    style="max-width:90%"  style="max-width:90%" alt="jQuery imitates Tmall to achieve stunning add to shopping cart_jquery" /> 
  <h3>&yen;<span>259.00</span></h3> 
  <div class="title">春款真皮坡跟大码单鞋内增高女士鞋子</div> 
  <a href="javascript:void(0);" class="button orange addcart">加入购物车</a> 
  </div> 
  <div class="per"> 
  <img src="images/2.jpg"    style="max-width:90%"  style="max-width:90%" alt="jQuery imitates Tmall to achieve stunning add to shopping cart_jquery" /> 
  <h3>&yen;<span>136.00</span></h3> 
  <div class="title">韩国代购情侣棉衣棉服女款韩版羊羔毛大衣</div> 
  <a href="javascript:void(0);" class="button orange addcart">加入购物车</a> 
  </div> 
  <div class="per"> 
  <img src="images/3.jpg"    style="max-width:90%"  style="max-width:90%" alt="图片三" /> 
  <h3>&yen;<span>&yen;728.00</span></h3> 
  <div class="title">冬季运动情侣羽绒棉马甲男士薄马甲</div> 
  <a href="javascript:void(0);" class="button orange addcart">加入购物车</a> 
  </div> 
  <div class="per"> 
  <img src="images/4.jpg"    style="max-width:90%"  style="max-width:90%" alt="图片四" /> 
  <h3>&yen;<span>119.00</span></h3> 
  <div class="title">原创-城市简约文艺纯色棉麻新中式小立领</div> 
  <a href="javascript:void(0);" class="button orange addcart">加入购物车</a> 
  </div> 
</div>

$(function() { 
  var offset = $("#icon-cart").offset(); 
  $(".addcart").click(function(event) { 
    var img = $(this).parent().children('img').attr('src'); //获取当前点击图片链接 
    var flyer = $('<img  class="flyer-img" src="' + img + '" alt="jQuery imitates Tmall to achieve stunning add to shopping cart_jquery" >'); //抛物体对象 
    flyer.fly({ 
      start: { 
        left: event.pageX,//抛物体起点横坐标 
        top: event.pageY //抛物体起点纵坐标 
      }, 
      end: { 
        left: offset.left + 10,//抛物体终点横坐标 
        top: offset.top + 10, //抛物体终点纵坐标 
      }, 
      onEnd: function() { 
        $("#tip").show().animate({width: '200px'},300).fadeOut(500);////成功加入购物车动画效果 
        this.destory(); //销毁抛物体 
      } 
    }); 
  }); 
});

<script src="requestAnimationFrame.js"></script>