Auto Calculate Form Fields Value Using JQuery Calculation Plugin

I am building a form that will automatically calculate the values entered by a user ideally using jQuery/javascript, i am not sure how to do this but have a general idea of the logic required (i am no expert so feel free to correct me) - I have created a dummy image to help explain what I am trying to do.


I have a single form, which has many input fields automatically calculate the total amount for each table provided it has been selected. Using jQuery - I would expect the logic to be something like -

i) Find the input field element ii) Find all the text fields within the table that have a value iii) Add these together and display in the 'total' form field

While i'm ok on the PHP, javascript is something I still get confused with at times -


Use JQuery To Add Form Fields And Sessions To Remember The Fields Were Added

I am creating a multi-paged form and now i am consulting the Stack guru's for some assistance; On this page the user can add more input fields [type=text] onto the page. So basically there is a singular input for "CHILD NAME" then a Add button to allow the user to add more children if they have more than one.

My form allows you to go backwards and forwards, the form remembers what was input, how would i get jQuery and php to remember that the form fields were added so they are not hidden when the user re-vists the page?

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#scrollContact {
border-top: double 1px #0D0D0D;
padding: 100px 50px 50px 50px;[code]...

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Does anyone know of a javascript site that is decent at these options?

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I will need to create form fields on the fly and then be able to save user input to database too.

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echo json_encode ($variable1);


Echos both variables in their spans doing 2 echos does not work, but the single as coded above works using the jquery form plugin.

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<script type="text/javascript">
$(document).ready(function() {
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target: '#message',
beforeSubmit: function() {

Now my problem is that I can't figure out why IE 7 is not doing anything when I click on my form submit button

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$(document).ready(function() {
//if verify button is clicked
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var address = $('input[name=address]');
var city = $('input[name=city]');
var state = $('input[name=state]');
var zip = $('input[name=zip]');
var country = $('select[name=country]');

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Is there any variable via which I could send the ship to zip code which will work directly on the cart and make it auto calculate the charges and show it? I have tried both "zip" and "address_zip" variables. None of them worked. By the way I have multiple items on my cart so I am using the "cart" transaction type.

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i cant get the form to post the variables to another script using dynamic fields?

edit: the script creates a new row of input fields, but none of them manage to post variables to a php script.


<script type="text/javascript">
var newRowNum = 2;


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return false;

This works fine.

However, if there is an error detected after the form is posted, then I need to recreate the table with the correct number of rows. At the moment, after posting, the table defaults back to the two starting rows only.

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Jan Feb Mar
13 9 11

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function dateClick(url){

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That is not going to scale very well with larger form with 100+ fields.
Maybe use jQuery Form plug-in instead?


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http:[url]....It works very well, Here is my code :

$('#question-form').submit(function() {
var serialAnswers = '';[code]...

But I don't know how to convert my query string to a JSON object and if it would be interpreted as an array on the PHP side.

EDIT : Even if I use an iframe, I don't know how to add a query string with information which does not come from the form (my serialAnswer from the code above).

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So basically this is a multi row form and on each row if Current is selected then I want to display pupil_id if anything else is selected then I want to display pupil name. For processing the input I run round the array m_perpetrator[] using php

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link text

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Can this even be done? I have tried to the best of my knowledge but come up empty If anyone can show me the way I would be 5 days worth of grateful to you

this is what I have so far:

PHP Code:



But as you can see my code is flawed, any one able to show me the correct way?

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We have for example:


(function( $ ){
var methods = {
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To perform a get call I wanted to do something such as:


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