function checkfields (f) {
	var msg = '';
	var couponcode = 'FCCLA1791';
	var couponcode2 = 'ZLTHS1001';
	var couponcode3 = 'D7860';
	var couponcode4 = 'CAT1818';
	var couponcode5 = 'P1234';
	var couponcode6 = 'G1208';
	var couponcode7 = 'C6005';
	var couponcode8 = 'S0812';
	var discountflag = '';
	var holder = '';
	f.item_5.value = '';
	
	if (f.op1_5.value == '' ) {
	return true; }
	
	if (f.op1_5.value != '') {
	holder = f.op1_5.value;
	if ((holder.substring(0,1) == 'W') || (holder.substring(0,1) == 'w')) {
	f.item_5.value = 'b-9205^=discount=^Discount^33.35';
	f.op6.value = 'Coupon code: '+ holder;
	return true;
	}
	if ((holder.substring(0,1) == 'R') || (holder.substring(0,1) == 'r')) {
	f.op6.value = 'Coupon code: '+ holder;
	return true;
	}
	if ((f.op1_5.value != couponcode) && (f.op1_5.value != couponcode2)&& (f.op1_5.value != couponcode3) && (f.op1_5.value != couponcode4) && (f.op1_5.value != couponcode5) && (f.op1_5.value != couponcode6) && (f.op1_5.value != couponcode7) && (f.op1_5.value != couponcode8)){ msg += "Coupon number is not valid. Please enter a valid Coupon number (or leave blank).\n(Note: Coupon number is case-sensitive.)"; }
	
	if (msg) { alert (msg); return false; }
	
	if (f.op1_5.value == couponcode) {
	f.item_5.value = 'b-9205^=discount=^Discount^20';
	return true; }  
	
	if (f.op1_5.value == couponcode2) {
	f.item_5.value = 'b-9205^=discount=^Discount^10';
	return true; }
	
	if (f.op1_5.value == couponcode3) {
	f.item_5.value = 'b-9205^=discount=^Discount^10';
	return true; }
	
	if (f.op1_5.value == couponcode4) {
	f.op6.value = 'Creative Arts Temple Fundraiser (CAT1818)';
	return true; }
	
	if (f.op1_5.value == couponcode5) {
	f.op6.value = 'Coupon code: P1234';
	return true; }
	
	if (f.op1_5.value == couponcode6) {
	f.item_5.value = 'b-9205^=discount=^Discount^10';
	f.op6.value = 'Discount code: G1208';
	return true; }
	
	if (f.op1_5.value == couponcode7) {
	f.op6.value = 'referred by Anthony Cirillo';
	return true; }

	if (f.op1_5.value == couponcode8) {
	f.item_5.value = 'b-9205^=discount=^Discount^40';
	return true; }
	
	}
}