如何在js里获取系统时间，并在html中应用

http://zhidao.baidu.com/question/393630613.html?qbl=relate_question_1&word=js%C8%A1%CF%B5%CD%B3%CA%B1%BC%E4

<div id='date'><script>getdates();</script></div><script language="javascript">function getdates(){var w_array=new Array("星期天","星期一","星期二","星期三","星期四","星期五","星期六");var d=new Date();var year=d.getFullYear();var month=d.getMonth()+1;var day=d.getDate();var week=d.getDay();var h=d.getHours();var mins=d.getMinutes();var s=d.getSeconds();if(month<10) month="0" + monthif(day<10) month="0" + dayif(h<10) h="0" + hif(mins<10) mins="0" + minsif(s<10) s="0" + svar shows="现在时间是： <span>" + year + "-" + month + "-" + day + " " + h + ":" + mins +  ":" + s + " " + w_array[week] + "</span>";document.getElementById("date").innerHTML=shows;setTimeout("getdates()",1000);}getdates();</script>