var coup1="JC-TWITTERTRIVIA";

var coup2="JC-JuneTwenty";

var coup3="JC-SubscribersRule";



function CalculateOrder(form) {



 if (form.text1.value == coup1)

 {

 form.discount_rate.value = "20";

 form.discount_rate2.value = "20";
 
 form.on3.value = "Coupon";

 form.os3.value = "Twitter Trivia Winner! - 20% off";

 }

  if (form.text1.value == coup2)

 {

 form.discount_rate.value = "15";

 form.discount_rate2.value = "15";
 
 form.on3.value = "Coupon Code";

 form.os3.value = "Returning Customer Discount! - 15% off";

 }

  if (form.text1.value == coup3)

 {

 form.discount_rate.value = "15";

 form.discount_rate2.value = "15";

 form.on3.value = "Coupon";

 form.os3.value = "Thanks for Subscribing! For that you get 15% off! ^_^";

 }

}