js取得当前日期和时间的代码 _JavaScript

js获得当前日期和时间的代码
<html>
<head>
<title></title>
<script language="javascript">
function getCurDate()
{
 var d = new Date();
 var week;
 switch (d.getDay()){
 case 1: week="星期一"; break;
 case 2: week="星期二"; break;
 case 3: week="星期三"; break;
 case 4: week="星期四"; break;
 case 5: week="星期五"; break;
 case 6: week="星期六"; break;
 default: week="星期天";
 }
 var years = d.getYear();
 var month = add_zero(d.getMonth()+1);
 var days = add_zero(d.getDate());
 var hours = add_zero(d.getHours());
 var minutes = add_zero(d.getMinutes());
 var seconds=add_zero(d.getSeconds());
 var ndate = years+"年"+month+"月"+days+"日 "+hours+":"+minutes+":"+seconds+" "+week;
 divT.innerHTML= ndate;
}

function add_zero(temp)
{
 if(temp<10) return "0"+temp;
 else return temp;
}

setInterval("getCurDate()",100);

</script>
</head>
<body>
<div id="divT"></div>
</body>
</html>