Javascript显示时间条

<div id="time"></div>
<a href="###">测试</a>
<script type='text/javascript'>
function dateinbar() {
    var d = new Date();
    var mon = d.getMonth() + 1;
    var year = d.getFullYear();
    var date = d.getDate();
    var h = d.getHours();
    var m = d.getMinutes();
    var s = d.getSeconds();
    var AorP = " ";
    if (h >= 12) AorP = "PM";
    else AorP = "AM";
    if (h >= 13) h = h - 12;
    if (s < 10) s = "0" + s;
    if (m < 10) m = "0" + m;
    var defaultStatus = "当前日期 " + year + "年" + mon + "月" + date + "日 " + " 当前时间 " + h + ":" + m + ":" + s + " " + AorP;
	document.getElementById("time").innerHTML = defaultStatus;
    setTimeout("dateinbar()", 1000);
}
dateinbar();
</script>