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var peopleCount = 0;
//if the people picker is client side rendered
if (fd.field('People').value().constructor == Array)
{
	peopleCount = fd.field('People').value().length;
}
//else it is rendered server side
else
{
	peopleCount = fd.field('People').value().dictionaryEntries.length;
}

var numberOfDaysForApprover = fd.field('NumberOfDaysEachApproverGets').value();
var date = new Date(fd.field('TodaysDate').value());

// if the today's date field is not empty
// this code assumes US date format is being used
if (Boolean(fd.field('TodaysDate').value())) {
	var dateParts = fd.field('TodaysDate').value().split('/');
	var date = new Date(dateParts[2], dateParts[0]-1, dateParts[1]);
	date.setDate(date.getDate() + peopleCount*numberOfDaysForApprover);
	var dueDateString = (date.getMonth()+1) +"/"+date.getDate() +"/" + date.getFullYear();
	fd.field('DueDate').value(dueDateString);
}