How to make paypal button fields 'Required'?
问题 i have created a pay now button using paypal button generator. The button has 2 fields, and then you press pay now. However, if you leave these fields empty, you can still pay I want to make these fields "required", if a user didn't fill these fields, he should not be able to pay. How? The button is not hosted on paypal, but the button protection is ON . I want the button to be encrypted. EDIT i tried javascript form validation, didn't work, any help? here's the script <form action="https:/