var discnt = 0;
var coupons = new Array (  
"Bowman10",
"Bowman15",
"Deborah10",
"Deborah15",
"Wesley10",
"Wesley15",
"Charlotte10",
"Charlotte15",
"Ariana10",
"Ariana15",
"Nadene10",
"Nadene15",
"Thompson10",
"Thompson15",
"Daley10",
"Daley15",
"Andrews10",
"Andrews15",
"BillieAnne10",
"BillieAnne15",
"Cattan10",
"Cattan15",
"McNaught10",
"McNaught15",
"Will10",
"Will15",
"Rowlands10",
"Rowlands15",
"Crowe10",
"Crowe15",
"lucky",
"cuddly"
);
var coupdc  = new Array (
10,
15,
10,
15,
10,
15,
10,
15,
10,
15,
10,
15,
10,
15,
10,
15,
10,
15,
10,
15,
10,
15,
10,
15,
10,
15,
10,
15,
10,
15,
22,
20
);
var coupval = "(blanket)";

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

function Dollar (val) {
var str,pos,rnd=0;
  if (val < .995) rnd = 1;
  str = escape (val*1.0 + 0.005001 + rnd);
  pos = str.indexOf (".");
  if (pos > 0) str = str.substring (rnd, pos + 3);
  return str;
}

function ReadForm (obj1) {
var amt,des;
  amt = obj1.baseamt.value*1.0;
  des = obj1.basedes.value;

  if (discnt > 0) {
    amt = Dollar (amt - (amt * discnt/100.0));
    des = des + ", " + discnt + "% dis, Discode = " + coupval;
  }

  obj1.amount.value = Dollar (amt);
  obj1.item_name.value = des;
}// JavaScript Document