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An AJAX Search Plugin is removing my Event Listeners from an 'Accordion' style list

I'm using Search & Filter pro WP plugin for the ease of a client using it.
I've created a results page and filter on a demo site (for testing) that works fine but I know the categories will get large on the real site. So I turned the plugins' filters into an Accordion style list.
It works fine until certain searches reload all those filter results with AJAX and they remove my event listeners (which are sitting on elements for the moment, I know it's not ideal but for now I just want to see if it could work).
I imagine because my script has already been parsed when the DOM loaded, the AJAX from the plugin is just redefining those elements and they are then missing the Event Listeners or something.
Any help would be appreciated.
Here's my script:
<?php
add_action( 'wp_footer', function () { ?>
<script>
const clicker = document.querySelectorAll('#search-filter-form-4346 > ul > li > h4');
// looping through the <h4> elements and adding an event listener onto each, the class toggle just adds an animation to a pseudo-element spinner
for (let i = 0; i < clicker.length; i++) {
clicker[i].addEventListener("click", function() {
this.classList.toggle("open-filter-dropdown");
console.log('EL was created');
// declaring the <ul> as a variable
const openFilterPanel = this.nextElementSibling;
// animating the <ul> elements max-height
if (openFilterPanel.style.maxHeight) {
openFilterPanel.style.maxHeight = null;
} else {
openFilterPanel.style.maxHeight = openFilterPanel.scrollHeight + "px";
}
console.log('openFilterPanel style is changed');
});
}
</script>
<?php } );
I'm pretty new to javascript, I get the basic concepts but this kind of an interference is above my head. I tried refactoring my code, forcing the page to refresh and other such measures. None of these work very well. I also thought I could use a 'loadend' event on the document to re-add my ELs but that didn't work either.
Hoping there is a workaround here, otherwise I might have to find another solution or plugin.
Thanks in advance!

jQuery: Single change event to fire multiple functions not working

I'm systematically building jQuery functions such that the css classes of various inputs in a web form have dependencies on other inputs (i.e. when a given input has a given value, the "hide" class is removed from the appropriate subsequent input etc.)
A specific (working) example of the jQuery I am using is:
$(document).ready(function(){
$("input[name$='q_4']").change(function(){
if(this.value == 'Yes') {
$('#qu_5').removeClass('hide');
} else {
$('#qu_5').addClass('hide');
}
});
});
In this example, the dependent question div (#qu_5) depends on the value entered via radio button for (name=q_4) to be "Yes".
Because I am building these functions dynamically (users can edit properties of questions such that they have these kinds of display dependencies) via a database, I end up with multiple chunks of this code on a page with several interdependent inputs. Each chunk of code has the name of the master question, the id of the slave question and the value that the slave relies on to be revealed. This also works as intended.
Sometimes however, one input should reveal multiple other questions so I end up with code something like:
$(document).ready(function(){
$("input[name$='q_87']").change(function(){
if(this.value == 'yes') {
$('#qu_88').removeClass('hide');
} else {
$('#qu_88').addClass('hide');
}
});
$("input[name$='q_87']").change(function(){
if(this.value == 'yes') {
$('#qu_89').removeClass('hide');
} else {
$('#qu_89').addClass('hide');
}
});
});
This does not work. (and indeed stops all the reveal / hide functions working on that page)
I presume it is because jQuery/javascript isn't happy with the same event input[name$='q_87']").change firing two different functions? This is the only thing I can think of.
Does anyone have any advice as to how I could achieve what I want in a way that works? Thanks! :)

If you need a var and an array you can write it like this
var questions = {
"q_87":["qu_88","qu_89"],
"q_96":["qu_95","qu_99"]
}
$.each(questions,function(q,arr) {
$("input[name$='"+q+"']").change(function(){
$("'#"+arr.join(",#")+"'").toggleClass('hide',this.value == 'yes');
});
});

HTML/CSS/Javascript, trying to get image to change on click

Quite a simple question, yet it has been bugging me all week!
Firstly, I do not expect someone to write me this huge piece of code, then me take it away and claim it for my own. Would prefer someone to actually help me write this :)
I am attempting to show a playlist on my website as a png image.
I have 2 playlists that must be shown.
The playlist will change on an image press.
I have 4 button images, 'CD1up', 'CD1down', 'CD2up' and 'CD2down'.
I would like to have these buttons changing what current playlist is being shown, but also showing the buttons correct state. For example, is playlist1 is being shown, then 'CD1up' must be shown, and 'CD2down' shown.
I would post my current code here, but I basically scrapped it all and decided to start from scratch since I'm terrible with web javascript.
All help is greatly appreciated!
I can basically fluent in HTML and CSS, but horrible at web javascript.

Some notes:
If you give each image an id attribute, you can use document.getElementById to get a reference to that element once the page is loaded.
Then you can set the src property on that element to a new URL to change the image.
Make sure your script tag is after the elements in the HTML (just before the closing </body> works) so that the elements exist when you want them.
You can add a click event handler to any element on the page. Most browsers support addEventListener but some older versions of IE still require you to use attachEvent to hook up the handler. So you see people with functions that look something like this:
function hookEvent(element, eventName, handler) {
if (element.addEventListener) {
element.addEventListener(eventName, handler, false);
}
else if (element.attachEvent) {
element.attachEvent("on" + eventName, handler);
}
else {
element["on" + eventName] = function(event) {
return handler.call(this, event || window.event);
};
}
}
So for example, if you have this img:
<img id="myImage" src="/path/to/img.png">
This cycles through four images on click:
<!-- This must be AFTER the `img` above in the HTML,
just before your closing /body tag is good -->
<script>
(function() {
var myImage = document.getElementById("myImage"),
images = [
"/path/to/img1.png",
"/path/to/img2.png",
"/path/to/img3.png",
"/path/to/img4.png"
],
index = -1;
hookEvent(myImage, "click", imageClick);
function imageClick() {
++index;
if (index >= images.length) {
index = 0;
}
myImage.src = images[index];
}
})();
</script>
You can get a lot of utility functionality and smooth over browser differences using a decent library like jQuery, YUI, Closure, or any of several others, although if all you want to do on the page is change the images sometimes and handle a click or two, that might be overkill.

html background ad

I have seen a lot of websites which "wrapper" width is 960px. As a background image they have an image which is clickable (some kind of advertise) and the whole webpage is over that image, like on this site.
Can you give me tutorial or something on that ?

Tom's code was a huge help, but I needed pointer cursor for this type of ad, but not for all the site, so I came up with this solution:
$('body').bind('click', function(e) {
if ($(e.target).closest('#container').size() == 0) {
alert('click');
}
}).bind('mouseover', function(e) {
if ($(e.target).closest('#container').size() == 0) {
$(this).css('cursor','pointer');
} else {
$(this).css('cursor','default');
}
});

In the first place you put the ad image as the website background then basically you have to capture the click on the whole body and check if it was in-or-outside of the page content. To do that you have to check if the event target element have the content wrapper (or wrappers if there are multiple) as one of its parent nodes - if not it means the click was outside of the page content.
If you'd like to do it here on StackOverflow you could do it with this bit of code.
$('body').bind('click', function(e){
if(!$(e.target).closest('#content').length) {
alert('ad outside content clicked');
}
});
Feel free to try it in your javascript console - SO is using jQuery so it will work - when you will click outside of the content area (at the edges of the screen) you will get alert that ad was clicked.
You'd obviously have to replace the alert with any kind of callback you'd have for your commercial - opening a new web page or whatever
Hope that helps
Tom
ps.
Keep in mind that this example is using jQuery for simplicity not native JS so you'd need the library for it to work.

js: hiding divs

I am pretty new to Javascript so please bear with me.
$('#bioContent').css('display','none');
$('#skillsContent').css('display','none');
$('#credsTab').css('background-color','#fff');
$('#credsTab a').css('color','#19d700');
$('#bioTab').css('background-color','#ccc');
$('#bioTab a').css('color','#444');
$('#skillsTab').css('background-color','#ccc');
$('#skillsTab a').css('color','#444');
$('#credsTab').click(function(){
$('#credsContent').css('display','block');
$('#bioContent').css('display','none');
$('#skillsContent').css('display','none');
$('#credsTab').css('background-color','#fff');
$('#credsTab a').css('color','#19d700');
$('#bioTab').css('background-color','#ccc');
$('#bioTab a').css('color','#444');
$('#skillsTab').css('background-color','#ccc');
$('#skillsTab a').css('color','#444');
})
$('#bioTab').click(function(){
$('#bioContent').css('display','block');
$('#credsContent').css('display','none');
$('#skillsContent').css('display','none');
$('#bioTab').css('background-color','#fff');
$('#bioTab a').css('color','#19d700');
$('#credsTab').css('background-color','#ccc');
$('#credsTab a').css('color','#444');
$('#skillsTab').css('background-color','#ccc');
$('#skillsTab a').css('color','#444');
})
$('#skillsTab').click(function(){
$('#skillsContent').css('display','block');
$('#bioContent').css('display','none');
$('#credsContent').css('display','none');
$('#skillsTab').css('background-color','#fff');
$('#skillsTab a').css('color','#19d700');
$('#bioTab').css('background-color','#ccc');
$('#bioTab a').css('color','#444');
$('#credsTab').css('background-color','#ccc');
$('#credsTab a').css('color','#444');
})
That's my javascript implementation of tabs. Basically on click, divs hide away and others appear.
My problem with this is that on the skillsTab, there's an add skills method, and when I click on that, it refreshes the page, and when it does, it brings me back to the credsTab, the default when the page is loaded.
I was wondering if that's a way so that when it refreshes, it will stay on the skillsTab.

Keep state around, which can be done via fragment URLs or HTML5 history.
e.g., make opening up the skills tab change the fragment to #skills, which will remain across a refresh. Then check window.location.hash in your onLoad to determine what initial state your page should be in.
function switchToTab(tabName) {
// DOM/CSS manipulation etc. here
}
var tabs = ['bio', 'skills', 'creds'];
var initialTab = 'bio';
for (var i = 0; i < tabs.length; i++) {
(function(tabName) {
document.getElementById(tabName + 'Tab').addEventListener('click', function() {
switchToTab(tabName);
location.hash = '#' + tabName;
}, false);
})(tabs[i]);
}
window.addEventListener('load', function() {
if (location.hash[0] == '#')
switchToTab(location.hash.substr(1));
}, false);
window.addEventListener('hashchange', function() {
if (location.hash[0] == '#')
switchToTab(location.hash.substr(1));
else
switchToTab(initialTab);
}, false);
Untested, and there's plenty of JS libraries out there that abstract this away for you.

An initial suggestion. give all your tabs the same class, maybe class='toggleableTab' then you can use
$('.togglableTab').live('click',function(){
$('.togglableTab').not(this).hide();
$(this).show();
});
as for the page refresh. Look into using AJAX to "add" your skills live on the page without a full page refresh.

There are several tabbed solutions already in place that you could make use of - for example, http://jqueryui.com/demos/tabs/. JQuery UI is a great way to have a lot of this work done for you.
If you want to do it yourself, I would also suggest a solution using classes, but slightly different than other suggestions. Instead, have two classes, "activeTab" and "tabbable". In your css, define "activeTab" as visible, and "tabbable" as hidden. Give each tab an ID and the class of "tabbable". Have a hidden field in your form called "activeTabId". Make sure that this gets passed back from the server side when you load the page, including setting it to the default tab when you first load the page. You could then run the following code on page load to make it all play well together:
$(".tabbable").click(new function(){
$(".tabbable").removeClass("activeTab");
$(this).addClass("activeTab");
$("#activeTabId").val($(this).attr("id"));
});
$("#" + $("#activeTabId").val()).addClass("activeTab");