javaScript 时间显示

<span id="localtime"><span><script type="text/Javascript">function showLocalTime(OID) {    window.setTimeout(function(){        var today = new Date(),              arr = new Array('日', '一', '二', '三', '四', '五', '六'),               yy = today.getYear(),               mm = today.getMonth()+1,               dd = today.getDate(),               hh = today.getHours(),               ii = today.getMinutes(),               ss = today.getSeconds(),               ww = today.getDay();        yy = yy < 1900 ? yy + 1900 : yy;        mm = mm < 10 ? '0' + mm : mm;        dd = dd < 10 ? '0' + dd : dd;        hh = hh < 10 ? '0' + hh : hh;        ii = ii < 10 ? '0' + ii : ii;        ss = ss < 10 ? '0' + ss : ss;        document.getElementById(OID).innerHTML = yy + '-' + mm + '-' + dd + ' ' + hh+':'+ii+':'+ss + ' 星期' + arr[ww];        showLocalTime(OID);    }, 1000);}showLocalTime('localtime');</script>