var coup1="Dawg";
var coup2="ChiliDawg";
var coup3="DAWG";
var coup4="CRASH";
var coup5="Crash";
var coup6="crash";

function CalculateOrder(form) {

 if (form.text1.value == coup1)
 {
 form.discount_rate.value = "10";
 form.discount_rate2.value = "10";
 form.on0.value = "Coupon";
 form.os0.value = "Discount 10%";
 }
  if (form.text1.value == coup2)
 {
 form.discount_rate.value = "15";
 form.discount_rate2.value = "15";
 form.on0.value = "Coupon";
 form.os0.value = "Discount 15%";
 }
  if (form.text1.value == coup3)
 {
 form.discount_rate.value = "10";
 form.discount_rate2.value = "10";
 form.on0.value = "Coupon";
 form.os0.value = "Discount 10%";
 }
  if (form.text1.value == coup4)
 {
 form.discount_rate.value = "20";
 form.discount_rate2.value = "20";
 form.on0.value = "Coupon";
 form.os0.value = "Discount 20%";
 }
  if (form.text1.value == coup5)
 {
 form.discount_rate.value = "20";
 form.discount_rate2.value = "20";
 form.on0.value = "Coupon";
 form.os0.value = "Discount 20%";
 }
  if (form.text1.value == coup6)
 {
 form.discount_rate.value = "20";
 form.discount_rate2.value = "20";
 form.on0.value = "Coupon";
 form.os0.value = "Discount 20%";
 }
 
}