// JavaScript Document
var discnt = 0;
 
var coupons = new Array (
  "fabulous",
  "Fabulous"
);
var coupdc  = new Array (
  2,
  2
);
var coupval = "(blanket)";

function ChkCoup () {
var i;
  discnt = 0;
  for (i=0; i<coupons.length; i++) {
    if (coupval == coupons[i]) {
      discnt = coupdc[i];
      alert ("Code is Valid... \n You will now receive a discount!");
      return;
    }
  }
  alert ("'" + coupval + "'  is not a valid code!");
  
}

function ReadForm (obj1) {

var amt,des,shp,qty;
  amt = 18.99;
  des = "Lights, Camera...YOU";
  shp = 5;
  qty = 1;
  
  amt = obj1.amount.value;
  des = obj1.item_name.value;
  shp = obj1.shipping.value*1.0;
  qty = obj1.quantity.value*1.0;

  if (discnt > 0) {
    amt = (amt - discnt);
	des = des + " - with a $" + discnt + ".00 discount per book";
  }
  
  if (qty > 1) {
  	shp = (shp + qty - 1);
  }
  
  obj1.amount.value = amt;
  obj1.item_name.value = des;
  obj1.shipping.value = (shp);
}