jquery/js实现一个网页同时调用多个倒计时(最新的)

<div class="time countdown_1" data-time="1449429731">
<span class="t_h_1">00</span>
<i class="lay_line">:</i>
<span class="t_m_1">00</span>
<i class="lay_line">:</i>
<span class="t_s_1">00</span>
</div>
<div class="time countdown_2" data-time="1449456731">
<span class="t_h_2">00</span>
<i class="lay_line">:</i>
<span class="t_m_2">00</span>
<i class="lay_line">:</i>
<span class="t_s_2">00</span> </div>
//js2
var plugJs={
stamp:0,
tid:1,
stampnow:'<?php echo NOW_TIME;?>',//统一开始时间戳
intervalTime:function(){
if(plugJs.stamp > 0){
var day = Math.floor(plugJs.stamp / (60 * 60 * 24));
var hour = Math.floor(plugJs.stamp / (60 * 60)) - (day * 24);
var minute = Math.floor(plugJs.stamp / 60) - (day * 24 * 60) - (hour * 60);
var second = Math.floor(plugJs.stamp) - (day * 24 * 60 * 60) - (hour * 60 * 60) - (minute * 60); if (day <= 9) day = '0' + day;
if (hour <= 9) hour = '0' + hour;
if (minute <= 9) minute = '0' + minute;
if (second <= 9) second = '0' + second;
jQuery('.t_h_'+plugJs.tid).html(hour);
jQuery('.t_m_'+plugJs.tid).html(minute);
jQuery('.t_s_'+plugJs.tid).html(second);
plugJs.stamp--;
setTimeout('if(typeof(plugJs.intervalTime) == "function"){plugJs.intervalTime();}',1000);
}
},
timer:function (stampend,tid){
plugJs.stamp = parseInt(stampend)-parseInt(plugJs.stampnow);//剩余时间戳
setTimeout('if(typeof(plugJs.intervalTime) == "function"){plugJs.intervalTime();}',1000);
}
};
jQuery(document).ready(function(){
var stampend = parseInt(jQuery('.countdown_1').attr('data-time'));//灵活读取表里的结束时间戳
plugJs.timer(stampend,'1');
});
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