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):

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Function With Onchange Event

Jul 23, 2005

I have an array with mysqls data. I have used this array with several text
box in a formulary.

My question is: How could i use the event onchange to make a function which
update the data of array when i would have change data in a text box.?

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Onchange Function Not Working

Aug 18, 2006

I have a dropdown that when the user selects an item, a function is called. Right it is giving me an error of 'object expected'. Can someone please take a look at my code below and let me know where I am going wrong? When I change the filldesc to an alert, it works fine and returns the correct values.

function filldesc(inputlevel1)
{
alert(inputlevel1);
}
<!-- Level one Headings -->
<select name='level1'
...

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Multiselect Box Onchange Function?

Jun 4, 2010

I'm trying to write a form and I need to allow the user to select more than one option from a list of options, if the last option is selected I have a hidden DIV that displays.This all works fine unless the user selects more than one option AND the final option "other" (ie using the control key to make the selection)... the code is below:

HTML Code:

<table>
<tr>
<td width="160">Select your color:</td>

[code]....

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Onchange Event With Function?

Oct 14, 2010

I'm having some difficulty in accessing an 'external' function from my onchange event. It will work when the function is included 'inline,' but it's not working when the function is 'stand alone.'Additionally, when it works, the variable isn't being passed - the alert I use says "[object Event]"

Code:
<head>
function nameTextBox2(selectBoxName)

[code]....

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OnChange Call A PHP Function?

Aug 24, 2005

Can a OnChange event call a PHP function?

Currently an OnChange event on a listbox I want to pass the value (a path) to a PHP function.

Not sure if this can be done...

Currently I have captured the path... now I need to get the path into a PHP Function!

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Calling Variable In Onchange Function

Jul 23, 2005

I am using a javafunction (onclick in select) in which i am calling a
function in php (thats why i send this to both php and javascript
newsgroups).

in the onclick i call the function "Place_Selected" with the value from the
select (naam_keuze.value)

in the function the value becomes the $zoek_id and searches in the database
for the record with the id of $zoek_id

the naam_keuze.value does not give the value to $zoek_id When i replace naam_keuze.value for a number (15) i works great.

WHAT AM I DOING WRONG? Code:

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Php Is Not Function With Onchange Dropdown Menu

May 10, 2009

i need to display selected item from dropdown menu into text box. what i want to do is when user select the item it will display on textbox call programme (java script) and also when button search is click it will display the total number of particular programme (php). for now, selected programme is function but the other one is not.

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Ajax :: Calling The Same Function For Each Onchange, Or Different Functions?

Jul 20, 2010

I'm trying to build a t-shirt creator application w/ php and ajax.You can see where I'm at here.Thus far, I've successfully passed the first parameter from the form via a function called from an onchange event, which uses a php script to pass simple text (for the time being, 'til i get this figured out), which you can see working on the page.trying to update the output w/ each change they make via the form. For every step, the output on the right needs to update.Should I be calling the same function for each onchange, or different functions? Here's what I'm using as far as AJAX/form goes:

Code:
function showShirt(s) {
// CHECKS IF THE STRING IS EMPTY
if (s=="") {[code]...........

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Changing OnSubmit To OnChange Form Function

Mar 21, 2010

I have the following form working with on onsumbit function, but I would like to change it so that instead of having to click the purchase button to see total price, you only have to change the quantity text box input. I just can not seem to get it to work.

<script language="javascript" type="text/javascript">
function checkQuantity(frm) {
var succesful = false;
var numQuantity;
numQuantity = parseInt(frm.Quantity.value);
var numTotalPrice;

if (numQuantity != 0) {
numTotalPrice = numQuantity * 4;
frm.TotalPrice.value = numTotalPrice; //new String(numTotalPrice);
successful = true;
} else {
alert("Sorry must order more than 0");
successful = false;
} return succesful;
}
</script>

<form action="" onsubmit="return checkQuantity(this)" style="width: 193px">
<table cellpadding="4" style="width:111%">
<tr><td class="style1">
Quantity:</td><td class="formInputCell">
<input name="Quantity" type="text" style="width: 55px" /></td>
</tr><tr><td class="style1">
Total Price $
</td><td class="formInputCell">
<input name="TotalPrice" type="text" style="width: 55px" /></td>
</tr><tr><td class="style2"></td>
<td><input id="Submit1" type="submit"
value="Buy Now" class="buttonstyle" /></td>
</tr>
</table>
</form>

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OnChange - Pass 5 Values To The CalcAvg() Function?

Sep 17, 2010

In our class we were assigned a project to create a Web page with 5 text boxes, each with a value attribute of zero. When the user changes the values, it is supposed to call a caclAvg() function. How do I pass 5 values to the calcAvg() function? It specifically states in our book to create an onChange event handler for each textbox. Wouldn't it be easier to somehow create a variable onChange, then after all 5 textboxes have changed, pass the 5 variables along to the function? I know the following code is a mess, I've tried so many ways now. I'm sure this is an easy, routine procedure for most of you.

function calcAvg(value1) {
var functionValue = value1;
}
<form action="" method="post" name"values">
<input type="text" name="value1" value="0" onchange="calcAvg(this.value)" />
<input type="text" name="value2" value="0" onchange="calcAvg(this.value);" />
[Code]....

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OnChange Says Function Not Defined In External Js File

Feb 5, 2010

I have the following code as js for <a href="http://www.oxbowcreations.com/wedding/personalize.php">this</a> site.

Code:

// JavaScript Document
function setQty(id)
{

[code]....

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Onchange Doesn't Trigger Function Call?

Jul 14, 2010

THIS WORKS:

<html><head><script type="text/javascript">
function recalc() {
alert ('Entering recalc().');
}

[Code]....

The first example works, which shows that the recalc function can be called. The second example works, which shows that onchange will trigger an alert box. BUT, the third example doesn't work. Why can't I trigger a call to the recalc function from the onchange event?

The above 3 code postings are the entire programs. Nothing has been left out or modified.

I am using IE 8.0.6001.18702.

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Create Some Iputs - Call Function On The Onchange

Apr 20, 2011

I create some iputs using this code :

Code:

And i would like to call this function on the onchange.

function c(group,position){

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JQuery :: Function Inside Onchange Event Not Firing?

Jul 12, 2010

$('#newPrice').change(function() {
this.value = this.value.replace(/[^0-9.]/g,'');
checkPrice();

[Code].....

Ok, so the above code will do the regex when the contents of the textbox changes, but it does not seem to call the checkPrice function I've placed after it does the regex.

I have the above on Change code in a .keyup event and it works as expected.

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Ajax :: Calling Multiple Function On Single Onchange()?

Sep 12, 2010

Actually i made two ajax function on single onchange() but when i fetch value on next page it will generate null pointer exception .The code is here..

<script language="javascript">
function disease_desc(id,type,desc)
{
alert(id);

[Code]....

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Create An Anonymous Function For Onchange Event Of File Field?

Feb 28, 2010

I am trying to create an anonymous function for onchange event of file field, so that when a file is selected, the covering text field gets that value. I know how to accomplish this by adding onchange="", but I'd prefer not do that. The code that I have almost works, except that the function in the for loop can't call on the "i" variable that the loop uses.

for( i = 0; i < source.length; i++) {
source[i].onchange = function() {
name[i].value = this.value;
}
}

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Calculator With User Level And Member Type - OnChange Function?

Apr 8, 2011

This is a calculator that calculates how much a user can earn from their referrals depending on the user's Level & Member type. It's supposed to be updating live (onChange) when the user types in new values in the fields, but nothing is happening. [URL].

Code:
<html>
<head>
<script type="text/javascript">
function calculate(){
// eval makes the script know the value is a number, and not text
var myLevel = eval(document.earningsform.level.value);
var memberType = eval(document.earningsform.type.value);
var viewed = eval(document.earningsform.viewed.value); .....

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Make A Search Function Work In A Listbox Full Of Onchange Tags?

Jun 20, 2011

I've got this listbox full of hundreds of employee names. Clicking on a name executes a function using onchange. Because of the length of the list I decided a search function would be really handy and I finally found one that works.

Now the search function, when you type in the input box, scrolls the list to the first matching entry. And that's good, that's what I wanted.

The problem comes in when you try to click on the name the search function found. Nothing happens ofcourse because the onchange tag in the list reacts to changes, not direct clicks.

code:

The list is populated by java but for testing I disabled the function that clears the "Loading" option and I set it to selected. That way the loading option is highlighted by default and the search function is free to highlight something else, then when I click on the search result it works like it's supposed to.

But keeping a highlighted option at the top of the list for that sole purpose isn't very elegant, especially since if you click on it the onchange function tries to execute and generates errors. The only solution I can think of is to use java to generate another option way at the bottom of the list that has the selected attribute but I don't quite know how to do that.

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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.

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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.

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JQuery :: Finding Selected Radio Button In Internet Explorer With Function / Onchange - Wrong Value Obtained

Feb 24, 2011

The following code works fine in FF and Chrome for getting a radio selections value but not IE8.

$('input[name="search[gender]"]').change(function()
{
var check = $('input[name="search[gender]"]:checked').val();

Inputs are below:
<input type="radio" name="search[gender]" value="1" class="v_middle" />Male
<input type="radio" name="search[gender]" value="2" class="v_middle" />Female
<input type="radio" name="search[gender]" value="3" class="v_middle" />Couple
<input type="radio" name="search[gender]" value="4" class="v_middle" />tv
<input type="radio" name="search[gender]" value="" checked="checked" class="v_middle" />All

The first time you click a radio button in IE8, no value is returned at all (tested with document.write of the 'check' value), with an error "'null' is null or not an object". The second (and rest of the times) you click any of the checkboxes the wrong value is returned, it returns the value of the currently checked button (which we checked a moment ago) rather than the one we have checked the second time. Does Internet Explorer have issues with this onchange function method? Or is something wrong with my code?

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OnChange(..)

Jul 23, 2005

In the next sentence, what's wrong?

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

IE complains about missing ";"

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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.

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Onchange Et Firefox...

Jul 11, 2006

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

If I write this page:

<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?

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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.

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