Calculate weekend days

Question

Hello.
I know there is a discussion about this here already (Calculate the number of week days between two dates)
but I couln't reply to it so therefore I choose to do like this....
I've tried the script (FormCalc) as described in this discussion but it won't work... Can someone please help me and se where I've got it wrong??
If I choose the start date to a friday and the end date to sunday the week after I've got 2 weekend days (it should be 4). The totalsum is ok but I can't get the weekend-days to be correct.
I've tried to change the numbers (1-7) but that won't help so something else must be wrong....
I couln't attach the file so I hope it will do like this.
StartDate:
Tyoe: Date/Time Fiekd, Display pattern: date{EEEE, YYYY-MM-DD},Edit, Validation and Data pattern: date{YYYY-MM-DD}, Visible, Locale: Swedish (Sweden), Value UserEntered - Optional, Binding: Start_Date1
EndDate:
Same as StartDate but of course named EndDate instead.
Weekend Days:
The field is TextField, No Pattern, Visible, Locale: Swedish (Sweden), Value: type: Calculated - Read Only, Calculation Script, Binding: WeedEndDays
The script for weekend days:
form1.Page1.subform1.WeekEndDays::calculate - (FormCalc, client)
if (HasValue(Start_Date1) & HasValue(End_Date1) ) then
  if (Date2Num(End_Date1, "YYYY-MM-DD", "sv_SE") > Date2Num(Start_Date1, "YYYY-MM-DD", "sv_SE")) then
  var TotalDays = Date2Num(End_Date1, "YYYY-MM-DD", "sv_SE") - Date2Num(Start_Date1, "YYYY-MM-DD", "sv_SE") + 1
  var currentDateNum = Date2Num(Start_Date1.formattedValue,"YYYY-MM-DD")
  var dayCnt = 0
  for i=1 upTo TotalDays do
  var dayOfWeek = Num2Date(currentDateNum,"E")
  if (dayOfWeek == 6 | dayOfWeek == 7) then
  dayCnt = dayCnt + 1
  endif
  currentDateNum = currentDateNum + 1
  endfor
  $ = dayCnt
  else
  endif
else
endif

Answer 1

I've adapted this from a function on my blog. you will need to add set the YourTicketTable to where ever your tickets are stored.
CREATE
FUNCTION [dbo].[CalcWorkDaysBetween](@StartDate
As DateTime,@EndDate
AS DateTime)
RETURNS
INT AS
BEGIN
SET @EndDate
=DATEADD(DAY,1,@EndDate)
DECLARE @Count
AS Int= 0
DECLARE @Date
As Date=@StartDate
WHILE @Date
< @EndDate
BEGIN
IF (DATEPART(WEEKDAY,@Date)IN(1,7)
OR (SELECT
Count(*)
FROM YourTicketTable WHERE TicketDate=@Date)=1)
BEGIN
SELECT @Count = @Count
+ 1
END
SELECT @Date=DATEADD(Day,
1,@Date)
END
RETURN
DATEDIFF(DAY,@StartDate,@EndDate)- @Count
END
Regards,