<!--var discnt = 0;   // no default percent discountvar coupons = new Array (  // place to put coupon codes  "coldwell29",                 // 1st coupon value - comma seperated  "coup2",                 // 2nd coupon value - add all you want  "coup3"                  // 3rd coupon value);var coupdc  = new Array (  // place to put discounts for coupon vals  15,  15,  15);var coupval = "(blanket)"; // what user entered as coupon codefunction ChkCoup () {      // check user coupon entryvar i;  discnt = 0;              // assume the worst  for (i=0; i<coupons.length; i++) {    if (coupval == coupons[i]) {      discnt = coupdc[i];  // remember the discount amt      alert ("Valid coupon number! \n\n" + discnt +              "% discount now in effect.");      return;    }  }  alert ("'" + coupval + "'  is not a valid code!");}function Dollar (val) {      // force to valid dollar amountvar str,pos,rnd=0;  if (val < .995) rnd = 1;  // for old Netscape browsers  str = escape (val*1.0 + 0.005001 + rnd);  // float, round, escape  pos = str.indexOf (".");  if (pos > 0) str = str.substring (rnd, pos + 3);  return str;}function ReadForm (obj1) {  // apply the discountvar amt,des;  amt = obj1.baseamt.value*1.0;       // base amount  des = obj1.basedes.value;           // base description  if (discnt > 0) {                   // only if discount is active    amt = Dollar (amt - (amt * discnt/100.0));    des = des + ", " + discnt + "% dis, COUP = " + coupval;  }  obj1.amount.value = Dollar (amt);  obj1.item_name.value = des;}//-->