i am adding the check box to calculating the net amount in the purchase order line level.
my requirement is
case1: i want to add the total excise amount to net amount before calculating the discount
case2: i want to add the total excise amount after calculating the discount in the Purchase order line details.
In this requirement i am adding one check box in the form before the discount amount.
i want to write a code to check and un check the checkbox in the form.
