jsp中取得服务器时间并动态显示

<%
      Calendar rightNow = Calendar.getInstance();
SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd HH:mm");
String sysdate = format.format(rightNow.getTime());
int week = rightNow.get(rightNow.DAY_OF_WEEK);
String weekary[] ={"月曜日","火曜日","水曜日","木曜日","金曜日","土曜日","日曜日"};
%>
<script language="javascript">
//从服务器上获取初始时间

var currentDate = new Date(<%=new java.util.Date().getTime()%>);
function run()
{
currentDate.setSeconds(currentDate.getSeconds()+1);
document.getElementById("dt").innerHTML =
currentDate.toLocaleString();     
}
window.setInterval("run();", 1000);
</script>
<div id="dt">自动显示时间。。。。</div>