var discnt = 0; // no default percent discount
	var coupons = new Array ( // place to put coupon codes
	"coup1", // 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
	5,
	50,
	99.9
	);
	var coupval = "(blanket)"; // what user entered as coupon code
	function ChkCoup () { // check user coupon entry
		var i;
		var amt = document.getElementById("amt").value;
		discnt = 0; // assume the worst
		for (i=0; i<coupons.length; i++) {
			if (coupval == coupons[i]) {
				discnt = coupdc[i]; // remember the discount amt
				document.getElementById("amt").value = Dollar (amt - (amt * discnt/100.0));
				document.getElementById("amt1").innerHTML = Dollar (amt - (amt * discnt/100.0));
				alert ("Valid coupon number! \n\n" + discnt + "% discount now in effect.");
				document.getElementById("coupon").innerHTML = "";
				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;
	}