To get sundays in a month

function checkDay(txtDate) {

            if(document.getElementById(txtDate).value.replace('/','').length>0)

            {            

            var checkSunday = document.getElementById(txtDate).value.split('/');

            var selectedDate = checkSunday[0];

            var selectedMonth = checkSunday[1];

            var selectedYear = checkSunday[2].substring(0, 4);

            var calendarDate = new Date(selectedYear, selectedMonth - 1, selectedDate);



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

                var r = confirm("Selected date is Sunday! Do you want to continue?");

                if (r == false) {

                    document.getElementById(txtDate).value = "";

                }

            }

            }

        }

Best Regards,
Rohan Laghate

Thanks,
T.Saravanan

private int NumMondays(string month_name, string year_name) 

{ 

 int i; 

 int num_mondays; 

 System.DateTime test_date; 

 int orig_month; 

 test_date = System.Convert.ToDateTime(month_name + " 1, " + year_name); 

 if (Weekday(test_date) == vbMonday) { 

 } else if (Weekday(test_date) == vbTuesday) { 

   test_date = DateAdd("d", 6, test_date); 

 } else if (Weekday(test_date) == vbWednesday) { 

   test_date = DateAdd("d", 5, test_date); 

 } else if (Weekday(test_date) == vbThursday) { 

   test_date = DateAdd("d", 4, test_date); 

 } else if (Weekday(test_date) == vbFriday) { 

   test_date = DateAdd("d", 3, test_date); 

 } else if (Weekday(test_date) == vbSaturday) { 

   test_date = DateAdd("d", 2, test_date); 

 } else if (Weekday(test_date) == vbSunday) { 

   test_date = DateAdd("d", 1, test_date); 

 } 

 orig_month = Month(test_date); 

 do { 

   num_mondays = num_mondays + 1; 

   test_date = DateAdd("ww", 1, test_date); 

 } while ((Month(test_date) == orig_month)); 

 NumMondays = num_mondays; 

}

LP MER