function timeStampToStr(timestamp) {
var hours;
var minutes;
var sec;
var timeStr;

// Get Hours
hours = Math.floor(timestamp / 3600);
timeStr =  hours + ':';

// Get Minutes
minutes = Math.floor((timestamp - hours * 3600) / 60);
timeStr += minutes + ':';

// Get secs
sec = (timestamp - hours * 3600) - minutes * 60;

return timeStr + sec;
}