example-coupon.js

function ChangeCouponMessage() 
{ 

//define the coupon value entered by user
var coupon = $("#subscription_coupon_code").val();

    //if the coupon ends with some value (for example, "abc") then apply the specific coupon message. 
    //The end of the coupon is used so the full coupon name does not appear in the source code
    if (coupon.match("abc$")) {
      coupon_text = $('#long_coupon_message').find(".success_message"); 
      coupon_text2 = coupon_text.text("Coupon Message Example 1")
    }
    //else if, the coupon ends with "def", put another coupon message
    else if (coupon.match("def$")) {
      coupon_text = $('#long_coupon_message').find(".success_message"); 
      coupon_text2 = coupon_text.text("Coupon Message Example 2")
    }
  
}; 
$(document).bind("afterSummaryRefresh", ChangeCouponMessage);