# Adding Tax To Sub-totals Onchange?

Oct 27, 2010

My JavaScript knowledge is still at the beginner level. Struggling to get the final calculations for taxes in this form.

The form currently updates the Sub-total automatically when form selections are made. I also need the form to calculate the tax and total. The tax rate depends on the kind of shipping selected. For the first 2 options the rate is 13% for the 3rd it's 5%.

What do I need to do to get the final 2 calculations to work?

Here's the JavaScript from (mredkj.com):

Code:

function OrderForm(prefix, precision, firstChoice) {
this.prefix = prefix ? prefix : '';
// ****************************
// Configure here
// ****************************

[Code]....

## Adding Up Totals From Two Fields?

May 10, 2011

I have a script that calculates the \$ amount when someone enters a number. For example, if you enter 2, it's \$200 if you enter 3 the total is \$300.I then have code that adds a \$ amount based on a check box. So if check box is clicked it's supposed to add \$10. All of this works, however, my last piece of code which combines the two totals isn't working right.1st of all, it doesn't display the total right away w/o checking the check box. That is, people should be able to just enter a 2 and go on with their business. Instead my code makes them check/then uncheck the box to see the total. I've posted the code below in chunksHere I calculate the TOTAL based on how many they selectCode:

function CalculateTotal(frm) {
var order_total = 0
// Run through all the form fields

[code]...

## JQuery :: Adding Totals In Repeat Table Row

Jul 7, 2011

I have a table that has a textfield for inputing numeric values. This field is in a repeated row table. The field id is 'amount'. I want to add all values in the text fields with ID 'amount' and display the sum in a textfield called 'totals' which is in a seperate table but in the same form. I have limited experience with jquery and I actually managed to create and delete a table row from reading posts on stack overflow. I tried using each() but it only works with the first row which is the default row.

//\$('#description tr:last').after('<tr>...</tr>');
\$('#description tr:last').after('<tr><td align="center"><label for="description"></label><input name="description"type="text"style="background-color:#CCC;"

[Code].....

However as stated, It only works with the first default row that was loaded with the html. Values I input after adding a row using jquery doesn't get summed up.

## Javascript Code To Sum Up Totals

Jul 23, 2005

First part I'm banging my head against the wall on is about the amounts
of the Amount fields along the right to automatically equal the PETTY
CASH SUB-TOTAL field. So, the amount in this PETTY CASH SUB-TOTAL
field comes up automatically. Also, I need to have the amount in the
TOTAL AMOUNT field come up automatically as being the sum of the PETTY
CASH SUB-TOTAL and the PER DIEM SUB-TOTAL fields. Please see the
following as an HTML document to see what I'm talking about......

## Exploding Values And Calculating Totals ?

Apr 1, 2009

I have a slight problem with creating dynamic quotes. Basically I have two select boxes and need to calculate a total in real-time using javascript and insert into input.First it needs to explode out the machine price and term years from the values and then calculate.

Here an example: A machine costs �4000 and a term of 2 years(60 months). The calculation would be (4000/60)*3 = �200

<select name="machine">
<option value="2005 - Almida XAS47 (660 Hours) �4000">2005 - Almida XAS47 (660 Hours) �4000</option>
</select>[code].....

## Calculating Multiple Totals / Doesn't Seems To Be Working

Oct 25, 2010

Our basketball officials chapter is implementing an on-line evaulation form and I have been asked to create the form. The form itself was not a real problem but the officials would like the form to automatically total the points in each Section (A thru F) and automatically total the six sections into a grand total. Right now I simply have a number of defaults: points per item, Section total, Grand total and a 'warning" that they need to update the totals if they make any changes to the default values. I thought could establish a variable for each section, perform a loop function to derive a total, then add the variables together for an overall total, but it doesn't seem to be working. I'm copying just a portion of the code (for Section A and Section B) below, along with my attempt at creating "functions" (at the end of the code) to do the math. (Not observed is treated the same as a "0")I'm probably missing something very simple but just don't see it. Any ideas on what I need to change?

## JQuery :: Calculating Column Totals In Multiple Tables

Feb 24, 2010

I've managed in the past to cobble together a few simple scripts.

I have an html page, with numerous tables in this format:

<table class="tableClass" id="tableID">
<col class="date" />
<col class="reference" />
<col class="amount" />

[Code].....

This (apparently) totals all 'amount' cells in the page, and writes it in *all* the 'total' cells - close, but obviously I'm not correctly specifying that each total should be displayed in its parent.

## Create A Order Form That Auto Calculates My Totals?

Oct 2, 2011

I am trying to create a order form that auto calculates my totals as I enter the quantities. It comes up with Not a Number(NaN).Below are snippets from my code this is obviously in a <form>:

HTML:
<!-- Row 3, Col 3 purchase boxes -->
<td colspan="1" height="120" align="left">
<input style="margin-left: 60px" type="text" name="bed_359" size="3" maxlength="3" onchange="calculateValue(this.form)" /> R359</td></tr>[code].....

## Drop Downs - Add The Totals From Products Under Added/Cancelled To The Sub Total

Feb 9, 2011

What i'm trying to do is:

1. Add the totals from products under added/Cancelled to the sub total

2. Then taking the sub totals added them to the total products

3. Need the total # of products that was selected as well

4. Then from the total products, want to Added subtract cancelled Divide Number of products = total net (1.34% = 134% w. the decimal moved over 2 spots to the right)

## Anything Better Than OnChange - User Changes Information In A Textbox As Appose To What OnChange Does?

Jan 28, 2011

Is there something that will update as soon as the user changes information in a textbox as appose to what onChange does, which is update once the focus has been taken off of the textbox? I am writing a custom cart and I am using AJAX to update the price according to how many they are ordering, I was hoping to have it update the price as soon as the user put in the volume, but it doesnt update until the user clicks somewhere else on the page.

## OnChange Without Appending OnChange Directly To Element?

Feb 10, 2010

Can I target the element and base an onChange outside of directly calling it in the element tag?

Due to the nature of my script, the best I can do is wrap a tag around the element.

example of what I am trying to do

Code:

<script>

document.form.field1.onchange = function();

<script>

And if this might work, can I call it in the head or must it come after the element.

Mar 4, 2010

I'm having a problem when I uncheck the box it should subtract the amount from the total which it does kind of. It subtracts a number other that one selected. When I put a alert into the function it pops up with the right amount.URL...click on "comps"uncheck the box under the zillow table.it should remove the amount of SqFt under the little table under the map.The only one that I've established is the zillow.[code]

## OnChange(..)

Jul 23, 2005

In the next sentence, what's wrong?

<select name='id'
= 'Daniel Perez'&valor='+this.options[this.selectedIndex].value">

## Triggering Onchange

Jul 23, 2005

I understand that the onchange event occurs when the value of a
form element changes (and after the element loses focus).

But what about the case where the value of a text box (for example)
is changed from a javascript function? Is an onclick event triggered
in such a case? I find that this is not happening in IE.

## Onchange Et Firefox...

Jul 11, 2006

I have a big problem with a simple event : onchange!

<html>
<body>
<form id="vu">
<input id="var01" name="var01" size="5" onchange="return false;"/>
</form>
</body>
</html>

everything is ok in IE (I can't leave the input zone !) but nothing happens in Firefox!
It looks like the event is not fired or...

Do you have any clue?

## Calendar And Onchange

May 23, 2007

I have a button that opens a calendar and populates a text box. I use
the onclick event to open the calendar.

Now the textbox has a onChange event that calls a function. The
onChange fires perfectly if I type the date on the textbox, but if the
calendar changes the date on the field then the onChange event doesn't fire.

I even try the following, but it seems that both functions run at the
same time and the value on the field is never picked up.

## Onchange Function Goes Only Once

Jun 14, 2007

I was working on a site that uses Google Checkout buy now buttons, and
I wanted the product picture to change based on what was picked. I was
able to have it change the picture, but if you pick a new item after
that, it keeps the same picture. Here;s the code:
The box (only the first part):

## Onchange Work With DOM

Jul 20, 2005

I've written some kind of menu to display a diagram with input fields
for a budget plan. A user should be able to change values, which are initially filled by
a database value, and get all corresponding values filled by the
program.

//value given by database
showText[k].setAttribute("value", eval("liste[i][TEXT" + k + "]"));

//onchange event for the user to change the value
showText[k].setAttribute("onchange", "calculate('cost" + i + "')");

//function to recalculate corresponding values
function calculate(myId) {
if (myId == "initial") {
...
}
else {
myId = myId.slice(4);
//getParents(myId) returns corresponding values for myId
var myParents = getParents(myId);
for (var i = deep; i >= 0; i--) {
var sum = 0;
for (var j = 0; j < myParents.length; j++) {
...
for (var k = 0; k < children.length; k++) {
sum +=
parseFloat(document.getElementById(eval("'cost" + children[k] +
"'")).getAttribute("value"));
}}}}}}

My Problem is:
IE and Netscape always use the value initially entered by the database
and not the new value entered by the user.
Is there a timing or DOM problem?

Jun 1, 2011

I have the following code running on my site...

Code:

<script type="text/javascript"> function test_func() { alert("You clicked the map."); } </script> <form action="#"> <input type="button" onclick="test_func();" value="Test"/>  </form>

It works fine, but I want the form to call test_func onchange instead of onclick. I want to add an input type='text' named call_func that when changed, will call the test_func function.

## OnChange In Input

Jun 2, 2007

I'm having problems. I am collecting data from an XML file and serving it up to a web page. Here's the code.

The thing is, I have taken a Submit button away and want the data to appear as the user types. I tried using onChange event handler but it only works when I click the mouse away from the input box, like an onBlur() event. Code:

## OnChange Issue

Oct 26, 2007

I have 2 html menu.html and menu2.html, and would like to swich one another using "onChange" in each form. function pageCh works first time, but it doesn't 2nd time.

## OnChange Select Box?

Jan 19, 2006

How can I change a select list when a user enters a value into a text box? Like with the below form I would like to have the select box change when the user enters a value in the "id" text box that matches a value in the select box. Say the user types "1122" in the text box I would like the select list to change to to show "John". Is this possible ....

## OnChange Not Working

May 16, 2003

I have a web-based form which allows users to enter marks for a group of examination candidates. I have a function which performs some calculations on the data as it is entered and displays it immediately. The data-entry form-part definition is:-

## Forcing OnChange()

Sep 23, 2003

does anyone know of a way of forcing the onChange() event of a control (it happens to be a <SELECT> if that is relevant) to fire off? (That is apart from the obvious one of changing the value with the mouse / keyboard!!!!)

I have some code which alters the currently selected element in a list and I need the list's onChange to then be fired off. The code is designed to work with many different lists, so I can't hard-code the same functionality into my code that is normally provided by the onChange.

I've tried ....element.onChange() and .....element.Change() but neither of these seem to work.

## Form Onchange

Dec 29, 2004

<form> onchange event doesnt work in IE. but works in Mozilla. Is there any other alternative in IE for <form onchange>????

## Forms (onChange?)

Oct 11, 2005

I'm making a form and I need it to do this:

From a drop-down box, the user chooses their country.

- User selects a country other than Australia, nothing happens.

- User selects Australia, another drop-down box appears with Australian states

* If they select a state other than Victoria, nothing happens

* If they select Victoria, another drop-down box appears with Region

I'd like the subsequent drop-down boxes to be either inactive and unclickable (technical terms here ) or not visible at all until the above conditions happen.