JavaScript for differentiation of two different dates & Exclude the Saturdays and sunsays in total days

JavaScript for getting Total days between of two dates & Exclude the Saturdays and Sundays in total days.

 Code: 

function DateDifference() {

            var startDate = document.getElementById('<%= txtStartDate.ClientID%>').value;

            var endDate = document.getElementById('<%= txtEndDate.ClientID%>').value;

            var startDateSplit = startDate.split("/");

            var endDateSplit = endDate.split("/");

           //getting Start Date,End Date

            var stDate = new Date(startDateSplit[2], startDateSplit[0] - 1, startDateSplit[1]);

            var enDate = new Date(endDateSplit[2], endDateSplit[0] - 1, endDateSplit[1]);

            //getting difference B/W Start Date & End Date

            var difference = (enDate.getTime() - stDate.getTime()) / (1000 * 60 * 60 * 24);

            var LeaveCount = difference + 1;

            if (stDate.getDay() == 0) {

                LeaveCount = LeaveCount - 1;               

            }

            else if (stDate.getDay() == 6) {

                LeaveCount = LeaveCount - 1;

            }

            var loopDate = new Date();

            loopDate = stDate;

            // Excluding Sat ,Sun in Selcted Dates

            for (var i = 1; i < difference + 1; i++) {

                var NextDate = new Date(loopDate.getYear(), loopDate.getMonth(), loopDate.getDate() + 1);               

                var Ndate = NextDate.getMonth() + 1 + "/" + NextDate.getDate() + "/" + NextDate.getYear();

                var NdateSplit = Ndate.split("/");

                var NxtDate = new Date(NdateSplit[2], NdateSplit[0] - 1, NdateSplit[1]);

                loopDate = NxtDate;

              

                if (NxtDate.getDay() == 0) {

                    LeaveCount = LeaveCount - 1;                  

                }

                else if (NxtDate.getDay() == 6) {

                    LeaveCount = LeaveCount - 1;                  

                }

            }           

            document.getElementById('<%= txtTotalDays.ClientID%>').value = LeaveCount;

        }