Stored procedure to populate a dropdown with a date range

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Oracle

stored-procedure

I need to populate a dropdown list with a date range as follows:
1/3/2009-1/9/2009, 1/10/2009-1/16/2009 etc i.e Saturday-following friday. There is already a table containing these dates and i use following query to fill the dropdown.

SELECT "CCSP_PAYROLL_DATE_CD"."PAY_BEG_DTM"||' - '||
           "CCSP_PAYROLL_DATE_CD"."PAY_END_DTM"  as DT_RANGE
  FROM "CCSP_PAYROLL_DATE_CD"
  WHERE ("CCSP_PAYROLL_DATE_CD"."DELETE_DTS" is null ) AND
           ("CCSP_PAYROLL_DATE_CD"."EXP_DTM" is null OR
           "CCSP_PAYROLL_DATE_CD"."EXP_DTM" >= sysdate)
  ORDER BY "CCSP_PAYROLL_DATE_CD"."PAY_BEG_DTM" DESC,
           "CCSP_PAYROLL_DATE_CD"."PAY_END_DTM" DESC;

In this query i should also be able to put a condition to populate date ranges only until 60 days back from the system date's pay beginning date.
For example if today's date is taken(11/29/2012), then the pay begeinning date would be (11/24/2012).So the dropdown list should show only 60 days back from 11/24/2012.

Is it wise to put this condition in the stored procedure or in the code.Which is more effiecient as it is a web application.