how can i create alertpay buynow button without genrating random value just like
<form method="post" action="https://sandbox.alertpay.com/sandbox/checkout" > <input type="hidden" name="ap_productid" value="mfTho16MKzQB7QLnn4lJRQ=="/> <input type="hidden" name="ap_quantity" value="1"/> <input type="image" name="ap_image" src="https://sandbox.alertpay.com/sandbox/PayNow/9ABA9D5FC7C540799CAEF5A3868D9E60b0en.gif"/> </form>
for my website