js动态更新时间

<script type="text/javascript" src="tab/jquery.js"></script> <script type="text/javascript">

//动态显示时间             $(function () {             setInterval(getTime, 1000);         });           function getTime() {             var dateTime = new Date();             var years = dateTime.getFullYear();//获取年份             var months = dateTime.getMonth()+1;//获取月份             var dates = dateTime.getDate();//获取天             var week=new Array('星期日','星期一','星期二','星期三','星期四','星期五','星期六');             var day = dateTime.getDay();             var hours = dateTime.getHours();//获取小时             var minutes = dateTime.getMinutes();//获取分钟             var seconds = dateTime.getSeconds();//获取秒                  hours<10?hour='0'+hours:hours;                  minutes<10?minutes='0'+minutes:minutes;                  seconds<10?seconds='0'+seconds:seconds;             $("#time").text(years+"/"+months+"/"+dates+" "+week[day]+" "+hours + ":" + minutes + ":" + seconds);         }

</script>

  <td width="220" valign="bottom"  nowrap="nowrap"><div align="right"><span class="STYLE1"><span class="STYLE2">■</span></span><font color="red"><span id="time"></span></font></div></td>