在网页上显示当前日期

<script type="text/javascript">
function getCurrentTime(){
var date = new Date();
var year = date.getFullYear();
var month = (date.getMonth()+1);
if(month<10){
month = "0" + month;
}
var day = date.getDate();
var weekday = date.getDay();
var week = new Array(7);
week[0] = "日";
week[1] = "一";
week[2] = "二";
week[3] = "三";
week[4] = "四";
week[5] = "五";
week[6] = "六";
var currentTime = "您好，今天是" + year + "年" + month + "月" + day + "日，星期" + week[weekday];
showCurrentTime.innerHTML = currentTime;
window.setTimeout("getCurrentTime();",1000);
}
window.onload = getCurrentTime;
</script>

<div class="tianqi">
<div class="tq_con">
<span id="showCurrentTime"></span>
</div>
</div>