function CouponRate(code,item){
	var endpoint= code.length;       
	var startpoint= endpoint -3;
	var Code=code;
	if(startpoint<0){
		alert("Not a Valid Coupon Length" ); 
		return -1;
	}
	var ITEM = Code.substring(0,startpoint);
	if(ITEM!=item){
		alert("Not a Valid Coupon Code" ); 
		return -1;
	}
	var coupon = Code.substring(startpoint,endpoint);
	switch(coupon){
		case "TEN":
			amount = 0.9;
			return amount;
		case "TWE":
			amount = 0.8;
			return amount;
		case "QUA":
			amount = 0.75;
			return amount;
		case "THI":
			amount = 0.7;
			return amount;
		case "FOU":
			amount = 0.6;
			return amount;
		case "HAL":
			amount = 0.5;
			return amount;
		case "SIX":
			amount = 0.4;
			return amount;
		case "SEV":
			amount = 0.3;
			return amount;
		case "EIG":
			amount = 0.2;
			return amount;
		case "NIN":
			amount = 0.1;
			return amount;
		case "HUN":
			amount = 0;
			return amount;
		default:
			alert("Not a Valid Coupon Code" );
			return -1;
	}

}
function addValue(couponcode, item, amount, cmd, item_name, currency_code, business, cancelReturn,Return){
	document._xclick.amount.value=amount;
	if(couponcode!=""){
		var rate=CouponRate(couponcode,item);
		if(rate!=-1){
			var Amount= rate * parseFloat(amount);
			document._xclick.amount.value=Amount.toPrecision(2);
		}
		if(rate==0){
			document._xclick.amount.value=0.01;
		}
	}
	document._xclick.cmd.value=cmd;
	document._xclick.item_name.value=item_name;
	document._xclick.currency_code.value=currency_code;
	document._xclick.business.value=business;
	document._xclick.cancel_return.value=cancelReturn;
}