var nowtime = (new Date).getTime();/*当前时间戳*/
/*转换时间，计算差值*/
function comptime(beginTime,endTime){
var secondNum = parseInt((endTime-beginTime*1000)/1000);//计算时间戳差值
if(secondNum>=0&&secondNum<60){
return secondNum+'秒前';
}
else if (secondNum>=60&&secondNum<3600){
var nTime=parseInt(secondNum/60);
return nTime+'分钟前';
}
else if (secondNum>=3600&&secondNum<3600*24){
var nTime=parseInt(secondNum/3600);
return nTime+'小时前';
}
else{
var nTime = parseInt(secondNum/86400);
return nTime+'天前';
}
}
t = comptime("1324362556",nowtime);//timestamp为PHP通过ajax回传的时间戳
alert(t);