1).How we can customize the front end of the POS web session ?
2).How can we access attributes of other model in java script ?.
Am about to create a pos coupon module for redeem coupon.I created a button Redeem Coupon in POS Payment session.And i need to check the coupon number entered during the session with the coupon number from the master .So how can i check this in JS...how can i access the coupon number and check with the inputted.