javascript比较两个日期之间相隔天数

$(function () {

var starttime = transdate("2014-09-30 15:53:00");

var endtime = transdate("2014-10-03 15:53:00");

var now = "'"+new Date().getTime()+"'";

var nowtime = now.substr(1,10);

if(nowtime > endtime){

$('.meeting_time').html('展会已结束');

}else if(nowtime < starttime){

var day = get_date_different(nowtime,starttime);

$('.meeting_time').html('距展会开始还有'+day+'天');

}else{

$('.meeting_time').html('展会进行中');

}

});

function get_(www.111cn.net)date_different(date_1,date_2){

var days= date_2 - date_1;

var time = parseInt(days / (60 * 60 * 24));

return time;

}

function transdate(endTime){

var date=new Date();

date.setFullYear(endTime.substring(0,4));

date.setMonth(endTime.substring(5,7)-1);

date.setDate(endTime.substring(8,10));

date.setHours(endTime.substring(11,13));

date.setMinutes(endTime.substring(14,16));

date.setSeconds(endTime.substring(17,19));

return Date.parse(date)/1000;

}from:http://www.111cn.net/wy/js-ajax/66437.htm