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total = Math.round(total * 100) / 100;
if (isNaN(total === 'NaN' ) || total === ''|| total === 0){
total = 'Something is not right - please check the values';
}
else {
total = "Total time: "+total;
}
//display the result
var divobj = document.getElementById('totalTime');
divobj.style.display='block';
divobj.innerHTML = "Total time: "+total;
}