SELECT, IN statement

Can someone tell me how to use a variable with the IN statement?

This works:

declare @emp [varchar](20),
@per [varchar](6),
@seq [varchar](30)

set @emp='025390'
set @per='200401'
set @seq='84'

Select Employee, RegHrs, OvtHrs, RegPay, OvtPay into #tmppd from EMPayrollDetail
where Employee = @emp AND
Period = @per AND
PostSeq = @seq



When I try and use the IN statement I get a syntax error:
declare @emp [varchar](20),
@per [varchar](6),
@seq [varchar](30)
set @emp='025390'
set @per='200401'
set @seq='84,92,98,99'

Select Employee, RegHrs, OvtHrs, RegPay, OvtPay into #tmppd from EMPayrollDetail
where Employee = @emp AND
Period = @per AND
PostSeq IN @seq

I've tried to make @seq ('84','92','98','99')
but it doesn't like that either.

Can I use a variable with the IN statement?
Help

You need to put parenthesis around the variable. Ex:

PostSeq IN ( @seq )