var coup10="unused10";
var coup15="unused15";
var coup20="CBB";
var coup21="HSK20";
var coup22="MWS";
var coup23="LANGO";

function CalculateOrder(form) {

 if (document.forms.hsk.item_name.value == "Handstand Kids Basket")
 {
 document.forms.hsk.on1.value = "Color";
 document.forms.hsk.os1.value = document.forms.hsk.Color.value;
 }
 else
 {
 document.forms.hsk.on1.value = "";
 document.forms.hsk.os1.value = "";
 }
 
 if (document.forms.hsk.promo.value == coup10)
 {
 document.forms.hsk.discount_rate.value = "10";
 document.forms.hsk.discount_rate2.value = "10";
 document.forms.hsk.on0.value = "Coupon";
 document.forms.hsk.os0.value = "HSK10 - Discount 10%";
 }
  if (document.forms.hsk.promo.value == coup15)
 {
 document.forms.hsk.discount_rate.value = "15";
 document.forms.hsk.discount_rate2.value = "15";
 document.forms.hsk.on0.value = "Coupon";
 document.forms.hsk.os0.value = "HSK15 - Discount 15%";
 }
  if (document.forms.hsk.promo.value == coup20)
 {
 document.forms.hsk.discount_rate.value = "20";
 document.forms.hsk.discount_rate2.value = "20";
 document.forms.hsk.on0.value = "Coupon";
 document.forms.hsk.os0.value = "CBB - Discount 20%";
 }
  if (document.forms.hsk.promo.value == coup21)
 {
 document.forms.hsk.discount_rate.value = "20";
 document.forms.hsk.discount_rate2.value = "20";
 document.forms.hsk.on0.value = "Coupon";
 document.forms.hsk.os0.value = "HSK20 - Discount 20%";
 }
  if (document.forms.hsk.promo.value == coup22)
 {
 document.forms.hsk.discount_rate.value = "20";
 document.forms.hsk.discount_rate2.value = "20";
 document.forms.hsk.on0.value = "Coupon";
 document.forms.hsk.os0.value = "MWS - Discount 20%";
 }
  if (document.forms.hsk.promo.value == coup23)
 {
 document.forms.hsk.discount_rate.value = "20";
 document.forms.hsk.discount_rate2.value = "20";
 document.forms.hsk.on0.value = "Coupon";
 document.forms.hsk.os0.value = "LANGO - Discount 20%";
 }
}