秒转换为时间字符串
自己记录一下，秒转换为时间格式
function secondsToHhmmss(seconds){
var hour;
var minute;
var seconds;

//if seconds is null or 0
if(seconds==null||seconds<0){

return '00:00:00';
}

//get Hour
hour = seconds/3600|0;
seconds = parseInt(seconds) - hour * 3600;

if(parseInt(hour) < 10){

hour = "0" + hour;
}

//get minute
minute = seconds/60|0;

//get seconds
seconds = parseInt(seconds)-minute*60;

if(parseInt(minute)<10){

minute ="0" + minute ;
}

if(seconds < 10){

seconds = "0" + seconds;
}

return hour+":"+minute+":"+seconds;
}

alert(secondsToHhmmss(24001));
// get 06:40:01