Insert with Loop

I am getting error msg's with my syntax. . Can you help me out ?

Declare @StoreNum int
Declare @StoreCnt int
Declare @Recid int

Set @Recid = Select MAX(RECNO) as recno from dbo.as_AllStores
GO
Drop Table dbo.as_Redemption_Offers_DayGap
GO
Select 'Redemption' As Redemption, ar3.*, 'Offers->' As Offers, ao.*
Into dbo.as_Redemption_Offers_DayGap
FROM dbo.as_offer_dates as ao
Inner Join (Select *
From dbo.as_all_division_coupons
Where @Recid = RECNO ) AS ar1
ON ao.[date] - 1 = ar1.SCAN_DATE_CONVERT AND
ao.DivNum = ar1.Kma_div_nbr AND
ao.cpnnum = ar1.coupon_nbr
Inner Join (Select *
From dbo.as_all_division_coupons
Where @Recid = RECNO ) AS ar2
ON ao.[date] + 1 = ar2.SCAN_DATE_CONVERT AND
ao.DivNum = ar2.Kma_div_nbr AND
ao.cpnnum = ar2.coupon_nbr
Left Join (Select *
From dbo.as_all_division_coupons
Where @Recid = RECNO ) As ar3
ON ao.[date] = ar3.SCAN_DATE_CONVERT AND
ao.DivNum = ar3.Kma_div_nbr AND
ao.cpnnum = ar3.coupon_nbr
WHERE ar3.STORE IS NULL
GO
Set @Recid = @Recid - 1
GO
While @Recid > 0
begin

Insert Into dbo.as_Redemption_Offers_DayGap
(Select 'Redemption' As Redemption, ar3.*, 'Offers->' As Offers, ao.*
FROM dbo.as_offer_dates as ao
Inner Join (Select *
From dbo.as_all_division_coupons
Where @Recid = RECNO ) AS ar1
ON ao.[date] - 1 = ar1.SCAN_DATE_CONVERT AND
ao.DivNum = ar1.Kma_div_nbr AND
ao.cpnnum = ar1.coupon_nbr
Inner Join (Select *
From dbo.as_all_division_coupons
Where @Recid = RECNO ) AS ar2
ON ao.[date] + 1 = ar2.SCAN_DATE_CONVERT AND
ao.DivNum = ar2.Kma_div_nbr AND
ao.cpnnum = ar2.coupon_nbr
Left Join (Select *
From dbo.as_all_division_coupons
Where @Recid = RECNO ) As ar3
ON ao.[date] = ar3.SCAN_DATE_CONVERT AND
ao.DivNum = ar3.Kma_div_nbr AND
ao.cpnnum = ar3.coupon_nbr
WHERE ar3.STORE IS NULL)

Set @Recid = @Recid - 1

End


Error Msg:
Msg 156, Level 15, State 1, Line 5
Incorrect syntax near the keyword 'Select'.
Msg 137, Level 15, State 2, Line 6
Must declare the scalar variable "@Recid".
Msg 137, Level 15, State 2, Line 12
Must declare the scalar variable "@Recid".
Msg 137, Level 15, State 2, Line 18
Must declare the scalar variable "@Recid".
Msg 137, Level 15, State 2, Line 1
Must declare the scalar variable "@Recid".
Msg 137, Level 15, State 2, Line 1
Must declare the scalar variable "@Recid".
Msg 156, Level 15, State 1, Line 5
Incorrect syntax near the keyword 'Select'.
Msg 137, Level 15, State 2, Line 9
Must declare the scalar variable "@Recid".
Msg 137, Level 15, State 2, Line 15
Must declare the scalar variable "@Recid".
Msg 137, Level 15, State 2, Line 21
Must declare the scalar variable "@Recid".
Msg 137, Level 15, State 2, Line 27
Must declare the scalar variable "@Recid".