JQuery/Javascript not working on Firefox and Chrome

Question

Hi guys, I've had this Jquery/Javascript on my page for a long time. This has stopped working. If the user clicks on buttons on the Apex page, nothing happens.
It works on IE but doesn't work on Firefox and Chrome. It used to work fine.
Is there anything I can change to make it work on all 3 browsers?
Firefox error console shows a syntax error at this point in the script:
$allButtons.click(function(){
itemChanged = false;
var toDo = $(this).attr('data-submitval');
eval(toDo);
Please can someone help?
This is the full script:
<script type="text/javascript">
//<![CDATA[
var itemChanged = false;
$(document).ready(function(){
var $items = $(':input');
var $htmlButtons = $(':button[id]');
var $templateButtons = $(':button[class]');
var $allButtons = $($htmlButtons).add($templateButtons);
$items.change(function() {
itemChanged = true;
$templateButtons.attr('data-submitval', function(){
return $(this).attr('onclick').toString().split('\n')[2];
$htmlButtons.attr('data-submitval', function(){
return this.id;
$allButtons.removeAttr('onclick');
$allButtons.click(function(){
itemChanged = false;
var toDo = $(this).attr('data-submitval');
eval(toDo);
$('a').click(function(event){
if ($(this).children('img[id="P&APP_PAGE_ID._DATE_PICKER_IMG"]').length > 0) {
event.preventDefault();
eval($(this).attr('href'));
window.onbeforeunload = function() {
if (itemChanged) {
return 'You have made changes to data on this page. If you navigate away from this page without first saving your data, the changes will be lost.';
//]]>
</script>
Thanks
Sam
Edited by: sam on 29-Jan-2013 03:50

Answer 1

JavaScript doesn't work on any site at all? If particular sites are the issue, or you get specific error messages, please let us know.
Usually the only two ways to disable JavaScript in Firefox are:
(1) Options dialog > Content tab<br>
(2) NoScript add-on (or other security-related add-ons)
Normally Safe Mode bypasses issues caused by add-on problems or non-default settings, so it's worth considering external issues.
Does JavaScript work normally in any other browsers you have installed?