SQL Report Builder 3.0 date parameter need assistance

Question

I'm trying to create a Report in SQL Report Builder 3.0 and I need your help to add a "Parameter" filter for the Report which will run the report and display rows with this parameter filter values. The parameters I want are Day and Week.

Now the first, Day would display rows using TestingTime (a column from the database table, its a datetime column) as the date column from getdate() minus 24 hours.

The second, Week would display rows with getdate() minus 7 days.

I have one DataSet query that runs the report right now that looks like this:

select ElementTesterMeasData.RecID, WindingProdData.Machine,
       ElementTesterMeasData.Felkod, ElementTesterMeasData.MeasP2AntalClear,
       ElementTesterMeasData.TestingTime
from DRYDCAP.dbo.WindingProdData
  full outer JOIN ElementTesterMeasData
    on ElementTesterMeasData.RecID=WindingProdData.SerialNumber
where Machine in (@Maskin)
  and Felkod in (@Felkoder)
order by Testingtime desc

The part where Machine in (@Maskin) and Felkod in (@Felkoder) points to 2 other parameters that i use in the report to filter what rows to display.

What would I have to add to this Query (or new dataset query) to make this work? And what would I have to add to Parameters that filters the returning rows with data from NOW -1 day back, or NOW -1 week back? If something is unclear I will try to explain the best I can.

BR,

Mikael