用JS調用當前系統時間

<script language="JavaScript"> 
  today=new Date();
  var hours = today.getHours();
  var minutes = today.getMinutes();
  var seconds = today.getSeconds();
  var timeValue = ((hours >12) ? hours -12 :hours); 
  timeValue += ((minutes < 10) ? ":0" : ":") + minutes;
  timeValue += (hours >= 12) ? " 下午 " : " 上午 ";
  function initArray(){
  this.length=initArray.arguments.length
  for(var i=0;i<this.length;i++)
  this[i+1]=initArray.arguments[i]  }
  var d=new initArray("<span>星期日</span>","<span>星期一</span>","<span>星期二</span>",
  "<span>星期三</span>","<span>星期四</span>","<span>星期五</span>","<span>星期六</span>"); 
  document.write(today.getFullYear(),"年",today.getMonth()+1,"月",today.getDate(),"日 ",d[today.getDay()+1]," ", timeValue); 
</script>