var daysToExcludeCount = 0;
var totalDaysFull = parseInt(BirtDateTime.diffDay(row["ORDERDATE"], row["SHIPPEDDATE"])) + 1;
var day = row["ORDERDATE"];
for(var x=0; x<totalDaysFull; x++){
	if(BirtDateTime.weekDay(day, 1) == 6 || BirtDateTime.weekDay(day, 1) == 7){
		daysToExcludeCount++;
	}
	day = BirtDateTime.addDay(day, 1);
}
var totalDaysModified = totalDaysFull - daysToExcludeCount;
totalDaysModified;