倒计时js代码转向的页面在所有页面的顶部

 <script type="text/javascript" src="../js/jquery-1.4.min.js"></script>
 <script type="text/javascript">
 var second = 4;
 $(function() {
  $("#secondSpan").text(second + "");
  var fuc = function() {
   second -= 1;
   $("#secondSpan").text(second + "");
   if (second == 0) {
    top.location = "${urlpath}";
   } else {
    setTimeout(fuc, 1000);
   }
  };

  fuc();//开始倒计时

 });
</script>