Extracting the total in dollars from a form
Hi,
I have a order form with fields for 5 products, each product can be ordered in single qty or a case with a sub total field plus a grand total and I'm trying to figure out how to extract the total & grand total amounts (in dollars) into the php form handler file so the amounts are sent back to the visitor and the site owner.
Thanks in advance
I searched around this morning and found the below javascript from http://www.mcfedries.com/javascript/ordertotals.asp which I adapted below for the wines selections. No styling but I think it has possibilities and more than one wine selection can be chosen.
Only thing I can't get the script to do is write the 'order_total' to a form input field which could then be collected via php and sent to the email address. At moment the script writes the total to <div>
<div id="order_total" style="text-align: right">$0.00</div>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
<title>Calculating Order Form Totals in JavaScript</title>
<style>
input {
width: 60px;
#orderForm {
width: 600px;
margin: 0 auto;
</style>
</head>
<script language="JavaScript" type="text/javascript">
<!--
/* This script is Copyright (c) Paul McFedries and
Logophilia Limited (http://www.mcfedries.com/).
Permission is granted to use this script as long as
this Copyright notice remains in place.*/
function CalculateTotal(frm) {
var order_total = 0
// Run through all the form fields
for (var i=0; i < frm.elements.length; ++i) {
// Get the current field
form_field = frm.elements[i]
// Get the field's name
form_name = form_field.name
// Is it a "product" field?
if (form_name.substring(0,4) == "PROD") {
// If so, extract the price from the name
item_price = parseFloat(form_name.substring(form_name.lastIndexOf("_") + 1))
// Get the quantity
item_quantity = parseInt(form_field.value)
// Update the order total
if (item_quantity >= 0) {
order_total += item_quantity * item_price
// Display the total rounded to two decimal places
document.getElementById("order_total").firstChild.data = "$" + round_decimals(order_total, 2)
function round_decimals(original_number, decimals) {
var result1 = original_number * Math.pow(10, decimals)
var result2 = Math.round(result1)
var result3 = result2 / Math.pow(10, decimals)
return pad_with_zeros(result3, decimals)
function pad_with_zeros(rounded_value, decimal_places) {
// Convert the number to a string
var value_string = rounded_value.toString()
// Locate the decimal point
var decimal_location = value_string.indexOf(".")
// Is there a decimal point?
if (decimal_location == -1) {
// If no, then all decimal places will be padded with 0s
decimal_part_length = 0
// If decimal_places is greater than zero, tack on a decimal point
value_string += decimal_places > 0 ? "." : ""
else {
// If yes, then only the extra decimal places will be padded with 0s
decimal_part_length = value_string.length - decimal_location - 1
// Calculate the number of decimal places that need to be padded with 0s
var pad_total = decimal_places - decimal_part_length
if (pad_total > 0) {
// Pad the string with 0s
for (var counter = 1; counter <= pad_total; counter++)
value_string += "0"
return value_string
//-->
</script>
<body>
<div id="orderForm">
<form>
<table width="600" cellspacing="0" cellpadding="0" border="0">
<tr>
<td width="200">Type of vine</td>
<td width="80">Number<br>
of single bottles</td>
<td>Price<br>per<br>bottle</td>
<td width="80">Number<br>of full<br> cases</td>
<td>Price<br>per<br>case</td>
</tr>
<tr>
<td><input type="checkbox" name="chardonnay_2011" id="chardonnay_2011" />Chardonnay 2011</td>
<td><Input type="text" name="PROD_Chardonnay2011Bottles_20.00" onChange="CalculateTotal(this.form)"></td>
<td>$20.00</td>
<td><Input type="text" name="PROD_Chardonnay2011Cases_204.00" onChange="CalculateTotal(this.form)"></td>
<td>$204.00</td>
</tr>
<tr>
<td><input type="checkbox" name="pinoGris_2011" id="pinoGris_2011" />Pino Gris 2011</td>
<td><Input type="text" name="PROD_PinoGris2011Bottles_21.00" onChange="CalculateTotal(this.form)"></td>
<td>$21.00</td>
<td><Input type="text" name="PROD_PinoGris2011Cases_228.00" onChange="CalculateTotal(this.form)"></td>
<td>$228.00</td>
</tr>
<tr>
<td><input type="checkbox" name="sauvigonBlanc_2011" id="sauvigonBlanc_2011" />Sauvigon Blanc 2011</td>
<td><Input type="text" name="PROD_SauvigonBlanc2011Bottles_20.00" onChange="CalculateTotal(this.form)"></td>
<td>$20.00</td>
<td><Input type="text" name="PROD_SauvigonBlanc2011Cases_204.00" onChange="CalculateTotal(this.form)"></td>
<td>$204.00</td>
</tr>
<tr>
<td><input type="checkbox" name="riesling_2012" id="riesling_2012" />Riesling 2012</td>
<td><Input type="text" name="PROD_Riesling2012Bottles_20.00" onChange="CalculateTotal(this.form)"></td>
<td>$20.00</td>
<td><Input type="text" name="PROD_Riesling2012Cases_204.00" onChange="CalculateTotal(this.form)"></td>
<td>$204.00</td>
</tr>
<tr>
<td><input type="checkbox" name="pinoNoir_2009" id="pinoNoir_2009" />Pinot Noir 2009</td>
<td><Input type="text" name="PROD_PinotNoir2009Bottles_25.00" onChange="CalculateTotal(this.form)"></td>
<td>$25.00</td>
<td><Input type="text" name="PROD_PinotNoir2009Cases_250.00" onChange="CalculateTotal(this.form)"></td>
<td>$250.00</td>
</tr>
</table>
<input style="width: 120px;" type="reset" reset value="clear form">
</form>
<div style="text-align: right">Total:</div>
<div id="order_total" style="text-align: right">$0.00</div>
</div>
</body>
</html>
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