Overwriting Browser's Keycode

Oct 21, 2005

I want to overwrite the CTRL+S key via 'onkeypress' so, that the
browser doesn't recognize it as 'Save page as ..' command.

I assumed, that calling 'evt.preventDefault()' in my event-handler
would be sufficient. It isn't.

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Date Is Overwriting In Dynamic Row Creation

Aug 4, 2009

Am developing MonthlyExpenses Project in which we have to enter details according to that date.

Date [IMG]datepickerimage[/IMG] Description Exptype Price

By clicking add button the dynamic row has to appear. But here , when I enter Date , the newdate is overwriting the previous one. New date is not appearing in new text box.

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JQuery :: Overwriting Document.write() With Append()?

Aug 5, 2009

hope I have your attention this time..Some of you propably know the problem with advertisment distributors and their excessive use of document.write() On the one hand, you tried to call advertisement as soon as possible, to have it shown as soon as possible. On the other hand, when you do that, an the advertisement library calls another remote script, which lags, your whole document lags. So you begin writing hacks to load advertisement at the end of your document, and traversing it to the positions, where it is to be shown. But your still bound to the document loading, since you cannot allow document.write() to be called


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Overwriting A Prototype Function And Keeping Scope?

Nov 3, 2010

Not sure if this is possible, but I have an external script that creates an object, and I want to overwrite some of its functionality, but keep the scope.

Here is a basic example:

Obj = function (userConfig) {


I want it to log two Objects, but instead I get two window elements. Is this because I am declaring the functions in the global scope, and not from within the object?

Anyway I can keep the scope of the object, whilst still overwriting the function?

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Default Textbox Values But Not Overwriting Browser Autocomplete / Solve This?

Jul 24, 2010

I'm working on a site and for my login area, instead of using labels for the textboxes, I wanted to just put default text in there.

The JS that I am using is supposed to only enter the default values in the textboxes if they are blank. Unfortunately, I think the JS runs before the browser puts the "auto remember" stuff into the boxs, so the JS will always put the default values in the boxes.

The problem is that, when its time for the browser to enter the auto remember stuff, it sees that there is already stuff entered, so it doesn't enter the previously-remembered login information.

I'm pretty sure that what I'm trying to do is possible, but maybe I'm going about it the wrong way. Could somebody suggest the appropriate way to do this? code...

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JQuery :: Ajax - On Safari/Chrome Browsers - Code Is Not Working On Webkit Browsers

Sep 26, 2009

Why this code is not working on Webkit browsers:

Only jquery and the plugin printed above are loaded, so there shouldn't be any conflicts.


Chrome gives the following error: Uncaught TypeError: Object #<an Object> has no method 'followUser

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Nov 17, 2005

The keyCode of '&'=55 and the keyCode of &#397;'=55 also...

How can you know what a person typed if you get the same keyCodes?

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JQuery :: Different From KeyCode To Which?

Oct 5, 2009

keyCode and which will get the same value, so anything different?
$(function() {
$(window).keydown(function(e) {

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IE Event And KeyCode/charCode

Oct 20, 2005

I'm trying to figure out what key the user pressed using a Danish
keyboard layout. charCodeAt returns the correct number, but
event.keyCode returns a wrong number, when using one of the keys that
are different on a Danish keyboard layout. "-" returns 45 and 189
respectively. Etc. (The input-field in the sample code below displays
the right character).

I've tried setting the lang-parameter to 'da', but it doesn't make a

sample code:

<input type="text"

Am I missing something, or is the event.keyCode in IE hardcoded to an
english keyboard layout? Is there a way to automatically convert the
event.keyCode so it corresponds with the users keyboard?

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Getting Keycode From Keypress Event

Jul 20, 2005

I have:
<div onkeypress="go(event)">...</div>

function go(event) {

but I always get 0 for the keycode.

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Can't Replace Keycode For <space> With <Tab> / Fix It?

Sep 15, 2009

I have a 3 textareas that when the user presses the spacebar I would like for the code to execute a TAB to move between them instead. My code works if I make the replacement keycode an number or letter but it wont work if I use TAB. The browser is IE. code...

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What's Wrong With KeyCode And String.fromCharCode

Feb 27, 2006

I got this (piece of) script from 'DHTML Utopia - Modern Webdesign - Using Javascript & DOM'.

function aKeyWasPressed(e) {
if (window.event) {
var key = window.event.keyCode;
} else {
var key = e.keyCode;
alert('You pressed the key: ' + String.fromCharCode(key));

It is example of adding an eventlistener to a textarea. The events works alright, but when I press 'a' the alert gives me 'A', when I press &#398;' I get 'h', when I press &#390;' I get ''', when I press '' I get &#390;', .... Has probably something to do with the fact that I don't live in the UK or
USA. But it shouldn't matter; a key is a key.

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Assigning KeyCode A Value In A Document Containing A Form

Mar 7, 2006

Basically we are trying to simulate the tab key when the
down arrow key is pressed. (we know there are other way
to control focus flow but we use a lot of dynamic jsp fields,
that will make the flow control a nightmare, we just want
basic tabbing from the arrow key)

1)We are able to capture a onkeydown event and reasign it with another
key value with no problem within an html document without a form.


var ieKey = event.keyCode;

if (ieKey == 40) {
event.keyCode = 9;

however as soon as we insert a form tag in the document, this stops
functioning. The asignment seems to be fine as an alert clearly shows, but the
instruction seems to be ignored. Code:

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JQuery :: How To Detect Combination Keycode

Jul 12, 2010

$(document).keydown(function(e) {
console.log('key code is: 'e.which);

I know how to find out which key user use, but how to do it when they use combination key? for example: "CTRL + C", "CTRL + V" and so on.

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Reassign An Event's Keycode For FireFox

Apr 15, 2011

I have a requirement to force the pageUp and pageDown keys to function the same as the arrowUp and arrowDown. I believe I'm ok with IE but have issues with setting the value for FireFox ...specifically line: evt.which=38; and line evt.which=40; -the "which" seems to only have a getter-

if (window.document.addEventListener) {
window.document.addEventListener("keydown", reviseKeyFunctions, false);


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KeyCode To Capture ENTER Key Not Working

Jan 8, 2010

I have an input field with onkeyup event that displays the code of the key the user pressed. The thing is, this works for all the keyboard buttons except for the ENTER key.

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JQuery :: Checking KeyCode Doesn't Work

Jan 7, 2010

the working code is : $(document).keydown(function(event)and I found out that it's not working on Firefox only on IE and Google Chrome...

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JQuery :: Event.keyCode Returns 0 In FireFox?

Aug 8, 2011

How come this code ...

$(document).keypress(function(event) {

returns 0 after pressing the key 'a' in FireFox but 97 in Chrome?

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JQuery :: Replace Keycode Cross Browser?

Mar 25, 2011

i want to handle keyboard and want to replace keycodes like when user enter / press key a = 65 I may able to change and show in textbox b= 66.


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Retrieve The Keycode That Was Pressed While An Input Is Selected?

Mar 11, 2010

I am trying to retrieve the keycode that was pressed while an input is selected. Here is my code:input.onkeyup = function() { func( this, event ); }

function func( obj, e ) {

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JavaScript Event.keyCode Evaluation (Firefox Safe!)

Sep 7, 2005

Here is an answer for those who are looking for a keystroke evaluation
script that works in Internet Explorer (IE 5.5, 6.0, 7.0 for PC--IE
4.0, 5.2 for Mac), Mozilla Firefox (Windows, Linux, and Apple
Macintosh), Safari, Opera, and other off-brand web browsers.

I have gone through many groups trying to find code that didn't break
in Firefox--yet still worked in other browsers. Although many people
give input on this topic, few are correct in their handling of the
events to give the correct results across the board.

I am a Webmaster, and although I have worked with much JavaScript, I do
not claim to be an expert on this topic--so feel free to post any
improvements that you can make.

Here's the test code, this snippet designed to force numeric-only input
in any browser, with the exception of a couple keys that are still
needed for form navigation (such as Tab--although this can be tailored
to your needs by adding more exceptions):

<script language="JavaScript">
function CheckNumericKeyInfo($char, $mozChar) {
if($mozChar != null) {// Look for a Mozilla-compatible browser
if(($mozChar >= 48 && $mozChar <= 57) || $mozChar == 0 || $char ==
8 || $mozChar == 13) $RetVal = true;
else {
$RetVal = false;
alert('Please enter a numeric value.');
else {// Must be an IE-compatible Browser
if(($char >= 48 && $char <= 57) || $char == 13) $RetVal = true;
else {
$RetVal = false;
alert('Please enter a numeric value.');
return $RetVal;

This function would then be called as follows:

<input type="text" name="over_figure" id="over_figure" size="5"
onKeyPress="return CheckNumericKeyInfo(event.keyCode, event.which);"

I have personally tested this on PC, Mac, and Linux systems in every
Web browser that I can get my hands on. It's far easier than the other
scripts that I've found, and you can just add "alert('keyCode: ' +
$char)" to find any other keycodes you might want to allow if you don't
know them off-hand. Obviously there is room to add a larger exception
list if you have need of it, and it might be better to just set $RetVal
to TRUE in the else and add an else if for IE, but my use didn't
require it.

I hope it saves someone some time!

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JQuery :: Triggering An Event Which Method Based On The Keycode?

May 5, 2011

I must be writing this wrong.

<script type=text/javascript >
$(document).ready(function() {
if(event.charCode || event.charCode !==13) {


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JQuery :: Keydown Event - When The User Presses Keycode , Div And Form Will Fade In At The Center Of The Screen?

Jun 10, 2010

I am trying to use the jquery keydown event.I wan to fade in a div that is a form then when the user presses keycode 17 meaning control key this div and form will fade in at the center of the screen.here is the code I have:

<link rel="stylesheet" type="text/css" href="/home/main.css"/>
<script type="text/javascript" src="http://www.domain.com/pngFix/jquery-1.3.2.min.js"></script>
<script type="text/javascript"[code]...

This is in a php file and echoing the code. So the " " ignore it it's just saying to php that those are to be echoed as " " This code isn't working. I would press control key but no fade in occurs. I include this php file to all my websites webpages which are php files.

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Non-IE Browsers

Jul 23, 2005

I have created a small application that lists all the
softwares that I created. This app was made using
Javascipts' DOM support of XML.

I am new to XML so I created this to get some experiance
in it. To problem is that the page only works with
Microsoft Internet Explorer.

Is it possible to modify the program so that it will
work with other Browsers? If yes, how? Code:

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DOM And Different Browsers

Mar 1, 2007

I used the DOM for mozilla to write some javascript. And naturally it doesn't work with IE and I haven't tried it on Opera type browsers. Is there any website that spells out the DOM's for IE and Opera individually like the mozilla one? Ie: http://developer.mozilla.org/en/docs/DOM:document.createElement

I would like to get the selection of the dom (meaning a highlighted area), then get the range. From the range I cloneContents in order to get a document fragment. Is there equivalent functions for IE and Opera etc? Code:

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Compatible For All Browsers. How?

Jul 23, 2005

I have this code here that reads in a javascript file and increases or
decreases font by its relative size (same thing as View, Text Size,
Large, small, etc.) I am developing this for Transport Canada and I
need some help. Here is my code. I need it to be compatible with IE,
Mozilla, Netscape and Opera. Most versions of these browsers has to be
compatible. If you could help me out the least bit would greatful.
Here's the code:

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