<html>
<script language="javascript">
today = new Date();
document.write("<BR>The time now is: ", today.getHours(),":",today.getMinutes(),":",today.getSeconds());
document.write("<BR>The date is: ", today.getDate(),"/",today.getMonth()+1,"/",today.getYear());
</script>
</html>
我想自动刷新页面以显示几秒钟内的变化。怎么做?请帮我。