var now = new Date(),　　end = new Date("2014/12/16 10:00");     if(now > end){        var html =                  ‘<div id="mbox_overlay" class="mbox_overlay"></div>‘+                ‘<div class="pop-box">‘+                     ‘<p>很遗憾，活动已经结束啦</p>‘+                     ‘<p class="J_end"></p>‘+                ‘ </div>‘;        var t=3;//设定跳转的时间         var refer = function(){             if(t==0){                  location="http://www.xxx.com"; //#设定跳转的链接地址              }              $(‘.J_end‘).html("" + t + "秒后为您跳转至首页"); // 显示倒计时              t--;        };       setInterval(refer,1000);//启动1秒定时       $(‘body‘).append(html); }else{};