I have a POS form (modal) , which has a total transaction. I have a button which I click to accept payment (modal form also). I enter the payment amount, click the ok button and it shows the change. What i want is, to have it so, if The amount of change is < 0 then the receipt isn't satisfied and the form (modal POS form) should not close.
ps. Shane if your out there i would really appreciate your help because he you know the pos