<div id="divTime"></div>
<script language="javascript" type="text/javascript">
//倒计时
window.setInterval(function() { ShowCountDown('divTime'); }, 1000);
function ShowCountDown(divname) {
var now = new Date();
// var endDate = new Date(now.getFullYear(), now.getMonth(), now.getDay(), "19", "00", "00");
var endDate = new Date("2009", "06", "31", "23", "59", "59");//对应的年月日时分秒,注意,月份是从0开始,06表示7月
var leftTime = endDate.getTime() - now.getTime();
var leftsecond = parseInt(leftTime / 1000);
var day0 = parseInt(leftsecond / (24 * 60 * 60));
var day1 = Math.floor(leftsecond / (60 * 60 * 24));
var hour = Math.floor((leftsecond - day1 * 24 * 60 * 60) / 3600);
var minute = Math.floor((leftsecond - day1 * 24 * 60 * 60 - hour * 3600) / 60);
var second = Math.floor(leftsecond - day1 * 24 * 60 * 60 - hour * 3600 - minute * 60);
var cc = document.getElementById(divname);
cc.innerHTML = day0 * 24 + hour + ":" + minute + ":" + second;
}
</script>