Convert seconds to human readable format e.g. 67 = '00:01:07'

js func sec2humanReadable

function sec2humanReadable(duration){
    var hour = 0;
    var min = 0;
    var sec = 0;

    if (duration){
        if (duration >= 60){
            min = Math.floor(duration / 60);
            sec = duration % 60;
        }
        else{
            sec = duration;
        }

        if (min >= 60){
            hour = Math.floor(min / 60);
            min = min - hour * 60;
        }

        if ( hour < 10 ){ hour = '0'+hour; }
        if ( min < 10 ){ min = '0'+min; }
        if ( sec < 10 ){ sec = '0'+sec; }
    }
    return hour +":"+ min +":"+ sec;
}

Thanks, works great.