var discnt = 0;   // no default percent discount
					 
					var coupons = new Array (  // place to put coupon codes
					  "RWH2011",                 // 1st coupon value - comma seperated
					  "akjglkjl",                 // 2nd coupon value - add all you want
					  "agkjga"                  // 3rd coupon value
					);
					var coupdc  = new Array (  // place to put discounts for coupon vals
					  5,
					  5,
					  5
					);
					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;
					}