简单的jQuery倒计时

 <script type="text/javascript">          var timeIndex = 100;//总的分钟数          $(document).ready(function(){              var regex = /dateTime=(\d+)/;              setTime();              setInterval(setTime, 1000);//每秒执行一次          });          function setTime(){              var hour = parseInt(timeIndex / 3600);              var minutes = parseInt((timeIndex % 3600) / 60);              var seconds = parseInt(timeIndex % 60);              hour = hour < 10 ? "0" + hour : hour;              minutes = minutes < 10 ? "0" + minutes : minutes;              seconds = seconds < 10 ? "0" + seconds : seconds;              $("#divTime").text(hour + ":" + minutes + ":" + seconds);              if(timeIndex>0){                  timeIndex--;              }              $("#linkTime").attr("href", url + timeIndex);          }