Smarter way to do a sql query with OR statement

HI,

I have a sql query looking like this:

SELECT        AttestInvoice.verNo, AttestInvoice.invoiceCompany, AttestInvoice.storeID, AttestInvoice.invoiceSum, AttestInvoice.invoiceID, AttestAccountInfo.completedDate
FROM            AttestInvoice INNER JOIN
                         AttestAccountInfo ON AttestInvoice.invoiceID = AttestAccountInfo.invoiceID
WHERE        (AttestInvoice.storeID > 0) AND (AttestInvoice.storeID IN
                             (SELECT        storeID
                               FROM            EmployeesStoresByUser
                               WHERE        (userName = @userName))) AND (AttestAccountInfo.approved = 1)
                               OR (AttestInvoice.storeID > 0) AND (AttestInvoice.storeID IN
                             (SELECT        storeID
                               FROM            EmployeesStoresByUser
                               WHERE        (userName = @userName))) AND (AttestAccountInfo.denied = 1)
ORDER BY AttestAccountInfo.completedDate DESC

As you can see it contains an OR statement. The only thing I want to do is to get all invoices that are approved or denied, but when I do that I need to re-write all the other statements too, otherwise it leaves or adds some data in the result.

Is there a smarter way to make OR queries without having to re-write all things over and over after each OR?

Thanks for help!

Peter