Error Using Onchange In Select Tag On Js And Php?

Sep 6, 2011

Just to give an idea on my objective.I have an user level that a user can choose between "User","Support" and "Admin" Level. If the user choose "Admin" my <div id='userlevel'> will become hidden and vise versa of the level.I have tested it on Html and js code it work just fine, but my error begun upon inserting it on php.My error on my page said " 'selectmenu' is null or not an object".This is my html and js code

<html>
<head>
<form >

[code]....

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Error Using Onchange In Select Tag On Php

Sep 6, 2011

My Error. Just to give an idea on my objective. I have an user level that a user can choose between "User","Support" and "Admin" Level. If the user choose "Admin" my <div id='userlevel'> will become hidden and vise versa of the level.

I have tested it on Html and js code it work just fine, but my error begun upon inserting it on php.

My error on my page said " 'selectmenu' is null or not an object".

This is my html and js code

Code HTML4Strict:

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Onchange Select Input Remove Error Message?

Jun 2, 2011

Here is my link [URL]. First you need to a simple route name and then press the submit button and do not select the select input values. Then you will see red message appear below it. Now my only problem when I have selected meaning on change I want the error message to disappear.

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SELECT OnChange Auto Fill Other SELECT Boxes

Jul 25, 2002

I searched here and some other places on the net but cant find anything that suits my needs. I have a SELECT box with 3 values Code:

<form name="form1">
<select name="length">
<option name="length" value="none">--Select for All--</option>
<option name="length" value="5">--5 Days--</option>
<option name="length" value="7">--7 Days--</option>
<option name="length" value="10">--10 Days--</option>
</select>
</form>

OnChange, I want to invoke a function that auto populates the rest of the SELECT fields in the form. The select boxes will vary in quantity as the page is dynamic, but the values are always the same (like the code above).

Does this make sense?

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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 ....

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<select..onchange() > With Only One <option>

Sep 27, 2007

I have a bunch of select statements in a form, and each select statement
has an onchange="do_something(this)" in it, and this works
nicely..except when there is only ONE OPTION in a given select.
It seems you cannot 'onchange' a single option!

Well, that is reasonable.

The trouble is I have no way of selecting it since the form itself is a
dummy: The form action is basically to submit to a new script with
hidden variables carefully set to get the desired action depending on
the last option selected Code:

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Get Value Of (form) Select OnChange?

Feb 4, 2009

How can I get and pass the value of an HTML form select object to a javascript function? code...

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Add An Onchange Event To A Select Tag?

Nov 12, 2009

I am trying to add an onchange event to a select tag.

This is my code, but it does not appear to be working.

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<meta http-equiv="content-type" content="text/html; charset=windows-1250">

[Code]....

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Using The OnChange Feature With Select

Jul 9, 2007

i am trying to get to work and i don't get why its not working so i am going to post it here and if someone who is smarter then me could come on and let me know why its not working and how i can fix it. if you have any questions let me know and i would be glad to answer them. Code:

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Onchange Event Of Select Box?

Jun 23, 2009

I want to make one application using javacript or may be it is in ajax. Let me explain my problem: I have one select box name person which have value 0,1,2,3,4,5 . Now i want that when user will select value 1 from select box then person 1 first name , last name input type box will appear only one time in a row. and if we will select 2 from select box then two row will appear naming person1 and person2 like this: if we will not select any value by default is 0.then it will not show any row regarding person.

[Code]...

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Onchange With Select Tag - Dropdown Box

Aug 26, 2011

I am using the OnChange event with the drop down box populated with countries.....but only works when certain countries are chosen.

When a country is chosen the OnChange event fires, passing a variable to the same page using the location.href.

Once this is done the onload within the body tag calls the function SetFocus() to the First Name text box.....which does not always work either.

Here is the code:

Code:

HTML Code:

HTML Code:

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Expected '' Error - Select Menu 'Customer' Which Triggers A 3 JS Functions - To Populate 2 Extra Select Menus

Aug 18, 2010

I'm having problems with a Javascript 'Lookup' function.

Basically, I have a select menu 'Customer' which triggers a 3 JS functions, to populate 2 extra select menus.

Using IE Developer Tools, during debugging, I get this error: Expected ';' Error

This relates to either: eval(ajax_CustContact[index].response); OR eval(ajax_CostCentreContact[index].response); (it's a bit random, as sometimes it works, sometimes it doesn't)

I have tried changing the 'custid' to 'custname' to check whether it was an integer causing the problem, but had the same problem.

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Dropdown Onchange To Select Mysql With Php?

Apr 9, 2009

I am trying to create a dropdown that selects mysql with php. For example I have two select dropdowns the first with types and second with products. So when the types select is click the products from that category are listed in the product select.

<select name="type" id="type">
<option value="1">Accessories</option>
<option value="2">Cables</option>

[code]....

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How Onchange Event Of Select Box Will Work

Jun 23, 2009

I am trying to make one application. When we slect value from select box . It will show same type of row according to which value we select from select box.

Let me explain my problem: select box have value 0,1,2,3 . When we select 1 then it will show one row below the select box naming person1 name (input box for name of person1). if we will select value 2 from select box then it will show two row according to select value Like this

person1 Enter Name of person1
person2 Enter Name of person2

By default it have value 0 then it will not show any row below the select box.

i want to do this. But i do not know how i can do this . I think for this i have to onchange event in select box .But in correct way i do not know how it is possible.

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Onchange, Select, And Displaying Output?

Jun 23, 2011

I learned javascript mainly from reading code.I'm have the most experience in c++. At any rate, what I want to happen is this .User chooses an option from a dropdown (select form.)A textbox outputs the option they selected. This is my code so far: don't laugh at my old school c++ mindset.. It's all I know :o

<script type="text/javascript">
function setcharge(chargeamount)
{[code]........

I have a feeling I'm using the DOM wrong,

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Identify SELECT In OnChange Submit?

Nov 21, 2009

I have a form with multiple SELECT drop-down menus. Each menu can submit the form using the onChange function. How can I determine which of the drop-down menus was used to submit the form? Example:

<form method="post" enctype="multipart/form data" action="submit.php">
<select name="one" onChange="submit()">
<option value="1">1st choice</option>

[code]....

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Change Colour Of Select Tag OnChange()

Jun 14, 2011

I have a select box as below.

onChange it filters the results by either New/Old. What i would like to do is to change the colour of the select box to show that an option has been selected. I.E after i select New the results are filtered and the select box changes colour.

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Blur SELECT Field ONCHANGE

Jun 15, 2005

<SELECT NAME="subcategory" class="small" onchange="this.blur();">
doesn't remove focus from the drop-down field?

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Onchange Select Box To Show Different DIVs

Jul 30, 2006

I want to have a select box be able to show a choosen Paragraph depending on the value choosen by the select box. Ex:

<select name='color'>
<option value='red'>red</option>
<option value='yellow'>yellow</option>
</select>

If the person chooses 'red' then 'Roses are Red" would show (say in a textbox or div)

If the person chooses 'yellow' then "The sun is yellow' shows up in a textbox or div.

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Select Element Onchange() - Old Selected Value And New

Feb 10, 2010

on the onchange event of a select element, i would like to pass the old selected value and the new selected value to a function.

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Select Onchange -> Change To Another Subdomain

Oct 9, 2010

I have a select form that changes the website countries. My website is built like this: [url], de.website.com, etc...

When the user changes the country in the form, I would like to send him to one of the subdomains.

I have this code:

Code:

If the user press Austria I want to send him to [url]. How can I do that?

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OnChange Event Extracting Value From Select Incorrectly

Jul 23, 2005

I am trying to extract the value from a selected item in a Select/Option, parse it server side using asp and then populate a text box on the same page with the value that was parsed. simple example below:

Two problems I have here:

1. The code: this.frmEditUser.Submit; does not appear to submit the form.
2. If I submit the form using the Submit button, it works except I get:

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JQuery :: Binding An Event To A Select OnChange?

Jul 14, 2009

Here is the html:

<select name="activities_limit" id="activities_limit">
<option value="5" selected="selected">5</option>
<option value="7">7</option>
<option value="10">10</option>
<option value="14">14</option>
</select>

And the jQuery:

$("#activities_limit").bind("change", function() { alert("value changed"); });

I am not seeing the JavaScript alert though.

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JQuery :: Call A Method Using Onchange In SELECT?

Sep 9, 2011

I want to call a method from java class using onchange in SELECT

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JQuery :: Select Appropriate Row For Updating Onchange Events

Jan 4, 2011

I have a button which creates a clone of the current row. Within each row is a drop down box for which the users can select red or yellow, which represent soccer cards. Based on that selection it calls a function which populates a div tag with the appropriate drop down options for that card color. The problem I am having is that the function is updating all div tags with the drop down selections and not the one for my current row. Please note that the drop down selection box is not guaranteed to be the last row in the table. The referee could go back and realize, that he or she made a mistake and make a change to the second row. So I need this to always be applicable to the current row of editing.

[Code]...

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Trigger OnChange Event For Select Menu?

Mar 28, 2009

Currently I am using an onchange event on a select menu and it is working fine. But if the user uses any arrow keys the event will not trigger. Is there any way to do that?

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