function AddToOrder(description, quantity, option1, option2, amount) {
	if(option2.length > 0) {
		var strItems = '';
		var strWindow = 'width=610,height=390,scrollbars,location,resizable,status';
		var strUrl = 'https://www.paypal.com/cgi-bin/webscr' +
				'?cmd=_cart' +
				'&business=sales@gasgorf.com' +
				'&currency_code=USD' +
				'&add=1' + 
				'&no_shipping=0' + 
//				'&return=www.gasgorf.com/sold.aspx' + 
//				'&cancel_return=www.gasgorf.com/cancelled.aspx' + 
				'&lc=US';

		strItems += '&item_name=' + description +
				'&quantity=' + quantity +
				'&on0=' + option1 + 
				'&os0=' + option2 + 
				'&amount=' + amount;

		wCart = window.open (strUrl + strItems, 'paypal', strWindow);
		wCart.focus();
	} else {
		alert("Please enter a valid serial number");
	}
}

function ValidateField(e){
	if(!IsNumeric(e.value)){
		e.value='';
	}
}

function IsNumeric(str) {
	var bResult = true;
	var nonDigit = /\D/g;
	if(str.length > 0) {
		if (nonDigit.test(str)) {
		// contains something else that a digit
			bResult = false;
		} else {
		// contains only digits
			bResult = true;
		}
	}
	return bResult;
}

function ViewCart() {
	var strWindow = 'width=650,height=390,scrollbars,location,resizable,status';
	var wPaypal = window.open('https://www.paypal.com/cgi-bin/webscr?cmd=_cart&business=sales@gasgorf.com&display=1', 'paypal', strWindow);
	wPaypal.focus()
}