js实现鼠标悬浮给图片加边框的方法

<div class="T-s-l fl"> 
 <a href="" class="a1"> 
  <img src="images/11.jpg" width="234" height="368" /> 
 </a><a href="" class="a2"> 
  <img src="images/11.jpg" /> 
 </a><a href="" class="a3"> 
  <img src="images/11.jpg" /> 
 </a> 
</div>

<script src="js/jquery-1.9.1.min.js" type="text/javascript"></script> 
<script src="js/jquery.insetborder.js" type="text/javascript"></script> 
<script type="text/javascript"> 
 $(document).ready(function () { 
  //border 
 $(".T-s-l a.a1").borderEffect(); 
 $(".a1").borderEffect(); 
 $(".T-s-l a.a2").borderEffect({ borderColor: '#e80484' }); 
 $(".T-s-l a.a3").borderEffect({ borderColor: '#7b7b7b', speed: 300, borderWidth: 10 }); 
 }); 
</script>

.T-s-l a{background:url(images/download.png) no-repeat -10px 20px #fff;} 
.T-s-l{width:952px;overflow:hidden;} 
.T-s-l a{float:left; width:234px;height:368px;margin:0 19px 17px 0;font-size:0;overflow:hidden;}