Filter a form based on a date selected from a combo box (1 Viewer)

Hey guys,
I have a form that is filter based on a combo box. I would like to add another filter for date. but the code I'm using for the first combo box doesn't work for date.

the code is:

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Sub SetFilter()

Dim LSQL As String

LSQL = "select * from Preventive_Q_View"
LSQL = LSQL & " where Item_Name = '" & Combo206 & "'"

Form_Preventive_View.RecordSource = LSQL

End Sub

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How do I modify this code to work with the date combo box?

also, is there a way to get both filters to work together, as in filter based on the first combo OR the second combo, OR both?

Thanks a lot.

Cross posted here: http://www.accessforums.net/forms/filter-form-based-date-selected-combo-box-40382.html