javascript 倒计时代码_时间日期

<script type="text/javascript"> <!-- var target=[] var time_id=[] function show_date_time_0(){ setTimeout("show_date_time_0()", 1000); for (var i=0,j=target.length;i<j;i++){ today=new Date(); timeold=target[i]-today.getTime(); sectimeold=timeold/1000; secondsold=Math.floor(sectimeold); msPerDay=24*60*60*1000; e_daysold=timeold/msPerDay; daysold=Math.floor(e_daysold); e_hrsold=(e_daysold-daysold)*24; hrsold=Math.floor(e_hrsold); e_minsold=(e_hrsold-hrsold)*60; minsold=Math.floor((e_hrsold-hrsold)*60); seconds=Math.floor((e_minsold-minsold)*60); if (daysold<0) { document.getElementById(time_id[i]).innerHTML="逾期,倒计时已经失效"; } else { if (daysold<10) {daysold="0"+daysold} if (daysold<100) {daysold="0"+daysold} if (hrsold<10) {hrsold="0"+hrsold} if (minsold<10) {minsold="0"+minsold} if (seconds<10) {seconds="0"+seconds} if (daysold<3) { document.getElementById(time_id[i]).innerHTML="<font color=red>"+daysold+"天"+hrsold+":"+minsold+":"+seconds+""; } else { document.getElementById(time_id[i]).innerHTML=daysold+"天"+hrsold+":"+minsold+":"+seconds; } } } } setTimeout("show_date_time_0()", 100); //--> </script> <div id="TimeCounter_0" style="border:1px solid black;margin:5px;padding:2px;width:140px"></div> <script> //设定目标时间(数组元素) //target[target.length]=new Date(年,月-1,日,时,分,秒).getTime() target[target.length]=new Date(2015,11,15,00,00,00).getTime(); //设定倒计时显示地址(数组元素) time_id[time_id.length]="TimeCounter_0" </script>
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