Splitting the Receivables Transaction Amount between two accounts

We want to setup a Subledger Accounting Rule that Identifies transactions that will have discounts on them when the cash receipts are applied.  When those transactions are created (i.e., when the invoice is genertated) we want the Subledger Accounting rules to allocate the discounted part of the transaction amount to an Accrual Account and the remaining to the receivables account.

Is this possible?

Thank you

Wade Simon