CREATE   FUNCTION fn_CalcBusinessDay 
(
@date datetime ,	-- start date
@interval int ,	-- No of days, plus or minus
@country varchar(50)
)
returns datetime AS  
begin

declare @daysAdded int ,
	@newDate datetime
	
	select  @daysAdded = 0 ,
		@newDate = @date
	
	while @daysAdded < abs(@interval)
	begin
		if @interval > 0
		begin
			select @newDate = DateAdd(d, 1, @newDate)
		end
		else
		begin
			select @newDate = DateAdd(d, -1, @newDate)
		end
		
		if dbo.fn_IsHolidayDay(@country, @newDate) = 0 and dbo.fn_CQS_IsWeekend(@newDate) = 0
			select @daysAdded = @daysAdded + 1
	end			
	
	return @newDate
	
end