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Changing style of multiple objects using javascript

I am creating a website using WordPress, so the content is created dynamically.
The elements ID is also dynamically generated
Each container can have these elements (a container can have multiple - but not the same):
t_1
f_1
f_2
f_3
I also add the container count at the end of the elements ID, so each element will have a unique ID
Let's say the PHP will generate a HTML like this:
<div id="container_1">
<div id=f_1_1>
//content
</div>
<div id=f_2_1>
//content
</div>
</div>
<div id="container_2">
<div id=t_1_2>
//content
</div>
</div>
<div id="container_3">
<div id=f_1_3>
//content
</div>
</div>
I would like to animate the position of these elements as the user scrolls, I added javascript to do it:
var scroll = window.pageYOffset;
window.addEventListener('scroll', function() {
scroll = window.pageYOffset;
requestAnimationFrame(scroll)
}, false)
function scroll() {
document.getElementById("f_1_1").style.top = scroll * 10 + 'px';
}
So here is the problem, I don't know which elements should I get by ID.
I thought about making a loop where I check each container for the elements inside, however I think it would use too much resources and would be laggy as the function runs each time the user scrolls.
An other solution I tried is to add the javascript dynamically to each container so I know exactly which elements I need to animate. It worked only for the first container as when I added the next container there were multiple function using the same name and only the last function has been executed
<div id="container_1">
<div id=f_1_1>
//content
</div>
<script type="text/javascript">
function scroll() {
document.getElementById("f_1_"+<?php echo $pagecounter?>).style.top = scroll * 10 + 'px';
}
</script>
</div>

You can use - WOW.js for animation when element is comes inside viewport.
<div id="container_1">
<div id=f_1_1 class="wow myCustomAnimation">
//content
</div>
<div id=f_2_1 class="wow myCustomAnimation">
//content
</div>
</div>
<div id="container_2">
<div id=t_1_2 class="wow myCustomAnimation">
//content
</div>
</div>
<div id="container_3">
<div id=f_1_3 class="wow myCustomAnimation">
//content
</div>
</div>
Where you have to write myCustomAnimation as per your requirment.

Collapsible container/column. Adding more than one link

I'm trying to create a drop down effect similar to this image: GIF, however with what I have so far: EXAMPLE I can't seem to figure out a way to add more than one link, if I do add just another content div it doesn't show up.. Hope someone can help, been losing sleep over this haha. Thanks
HTML:
<div class="container">
<div class="header">Projects</div>
<div class="content" onclick="initContent('example')"><em>Example Project</em></div>
</div>
JS:
$(".header").click(function() {
$header = $(this);
//getting the next element
$content = $(this).next();
//checking if its already visible
$content.slideToggle(500, function() {
//execute this after slideToggle is done
//change text of header based on visibility of content div
$header.text(function() {});
});
});
What I would try:
<div class="container">
<div class="header">Projects</div>
<div class="content" onclick="initContent('example')"><em>Example Project</em></div>
<div class="content" onclick="initContent('exampleNew')"><em>Example Project 2</em></div>
</div>

Just put all your links in a single content div:
https://jsfiddle.net/sfcm95yz/3/
<div class="content">
<div class="item" onlclick="initContent('example')">
<em>Example Project</em>
</div>
<div class="item" onlclick="initContent('example2')">
<em>Example Project 2</em>
</div>
</div>

It's because you are sliding down the content div that is right after the header class element ($content = $(this).next();), which applies a display: block to it. If you add another content div, it isn't going to be right after that header and so won't be shown.
You can either change your JavaScript to target all content divs, or rearrange your HTML, something like this:
<div class="container">
<div class="header">Projects</div>
<div class="content">
<div onclick="initContent('example')">
<em>Example Project</em>
</div>
<div onclick="initContent('example')">
<em>Example Project 2</em>
</div>
<div onclick="initContent('example')">
<em>Example Project 3</em>
</div>
</div>
</div>

If you want to modify your JS and keep the existing markup, .nextAll() will select all of $header's siblings (.next() only selects one sibling). You can also add a selector argument to be sure you only select elements with the class "content".
$(".header").click(function() {
$header = $(this);
//getting the sibling ".content" elements
$content = $(this).nextAll(".content");
//checking if its already visible
$content.slideToggle(500, function() {
//execute this after slideToggle is done
//change text of header based on visibility of content div
$header.text(function() {});
});
});

Clone and append on click makes multiple elements and toggle not working

I am trying to clone and append elements. after i append i have added a toggle animation. on first click it works fine. after i am getting mutliple elements appended.
as well the animation not working.
here is the html:
<div class="parent hide">
<div class="header">
<h6>Header</h6>
</div>
<div class="content">
<p>paragraph content </p>
</div>
</div>
<div id="content">
</div>
<button>Add</button>
Js :
$('.parent').on('click', '.header', function () {
$(this).find('h6').toggleClass('name').end()
.siblings('.content').slideToggle();
});
$('button').on('click', function () {
var newParent = $('.parent').clone();
$('#content').append(newParent.removeClass('hide'));
});
JSfiddle
UPDATE:
I updated the cloning passing var newParent = $('.parent').clone(true); - animation works!

you should clone only the first element (or the last for that matter):
var newParent = $('.parent:first').clone(true);
EXAMPLE 1
Using .clone(true) seems to fix the animation. Another solution is targeting the parent on click and delegating .parent .header since the cloned .parent is being added to the DOM after the initial load:
$('#content ').on('click', '.parent .header', function () {
instead of
$('.parent').on('click', '.header', function () {
EXAMPLE 2

Cloning an elements means there will be two identical elements (having the same class aswell) afterwards.
Each time you click the button, all elements having the .parent class are cloned and appended to the #content
Regarding the animation:
The appended elements are not known to the DOM, so the .on('click') is not working.
Try to put a wrapper around your .parent elements and then use the following syntax:
HTML
<div class="wrapper">
<div class="parent hide">
<div class="header">
<h6>Header</h6>
</div>
<div class="content">
<p>paragraph content </p>
</div>
</div>
<div id="content">
</div>
</div>
<button>Add</button>
JS
$('.wrapper').on('click', '.parent .header', function(){ [...] });

Javascript - jquery,accordion

<div id="wrapper">
<div class="accordionButton">Personal Information</div>
<div class="accordionContent">
Personal text
</div>
<div class="accordionButton">Experience</div>
<div class="accordionContent">
Experience information
</div>
<div class="accordionButton">Training</div>
<div class="accordionContent">
No skills
<div class="accordionButton">Career</div>
<div class="accordionContent">
Never had a job
</div>
<div class="accordionButton">Referers</div>
<div class="accordionContent">
None.
</div>
</div>
This code works how i want it to. It is a horizontal accordion. However, when it is loaded on my webpage, they content divs have to be hidden for my jquery to work.
Jquery:
$(document).ready(function() {
// When div is clicked, hidden content divs will slide out
$('div.accordionButton').click(function() {
$('div.accordionContent').slideUp('normal');
$(this).next().slideDown('normal');
});
// Close all divs on load page
$("div.accordionContent").hide();
});
If i don't hide the divs, all the divs display. Is there any way to display the 1st page without changing too much of my jquery or would i have to set different class names for the button and the content so that when a specified button is clicked, the affiliated content will slide out for that button div?

You can use jquery selector for first div and set it as show(). Something like :
$('div.accordionContent:first').show();

I think you have to try this:-
<script type="text/javascript">
$.fn.accordion = function(settings) {
accordion = $(this);
}
$(document).ready(function($) {
$('div.accordionContent').click(function() {
if($(this).next().is(":visible")) {
$(this).next().slideDown();
}
$('div.accordionContent').filter(':visible').slideUp();
$(this).next().slideDown();
return false;
});
});
</script>

Why not use slideToggle() instead of IF statements....

Try this very simple solution
HTML
<div class="accordion-container">
<div class="accordion-content">
<div class="accordion-title">Title</div>
<div class="accordion-toggle">Toggle content</div>
</div>
<div class="accordion-content">
<div class="accordion-title">Title</div>
<div class="accordion-toggle">Toggle content</div>
</div>
<div class="accordion-content">
<div class="accordion-title">Title</div>
<div class="accordion-toggle">Toggle content</div>
</div>
</div>
jQuery
$('.accordion-content .accordion-title').on('click', function(){
$(this).toggleClass('active');
$('.accordion-title').not($(this)).removeClass('active');
$(this).next().slideToggle();
$(".accordion-toggle").not($(this).next()).slideUp();
});

How to toggle (jQuery) with an anchor

I have a small problem with jQuery.
The situation:
I have a piece of jQuery code, where I toggle results.
JS Code:
//Set default open/close settings
$('.acc_container').hide(); //Hide/close all containers
//$('.acc_trigger:first').addClass('active').next().show(); //Add "active" class to first trigger, then show/open the immediate next container
//On Click
$('.acc_trigger').click(function(){
if( $(this).next().is(':hidden') ) { //If immediate next container is closed...
$('.acc_trigger').removeClass('active').next().slideUp(); //Remove all .acc_trigger classes and slide up the immediate next container
$(this).toggleClass('active').next().slideDown(); //Add .acc_trigger class to clicked trigger and slide down the immediate next container
}
return true; //Prevent the browser jump to the link anchor
});
Now I want to open - toggle an item on anchor position from the URL like (http://x.com/page.php#toggleItem2)
Question:
How read toggleItem2 from URL and open exactly this section?
Additional:
HTML Code:
<div class="container">
<h2 class="acc_trigger">Item1</h2>
<div class="acc_container">
<div class="block">
Inner Text in toggle 1
</div>
</div>
<h2 class="acc_trigger">Item2</h2>
<div class="acc_container">
<div class="block">
Inner Text in toggle 2
</div>
</div>
<h2 class="acc_trigger">Item3</h2>
<div class="acc_container">
<div class="block">
Inner Text in toggle 3
</div>
</div>
</div>
I hope the problem is clearly defined.

You should give your divs IDs according to the anchors, e.g.
<h2 class="acc_trigger">Item1</h2>
<div id="toggle1" class="acc_container">
<div class="block">
Inner Text in toggle 1
</div>
</div>
You can get the document fragment from the location object:
document.location.hash
Then it is simply (assuming the other containers are all hidden):
$(document.location.hash).slideDown().prev().addClass('active');

Try jquery toggle itself
http://api.jquery.com/toggle/

This is held within the window.location.hash variable.

You can do something like this:
http://jsfiddle.net/b6Znw/
Javascript:
$().ready(function(){
$('.acc_trigger a').click(function(){
$(this).closest('.acc_trigger').next('.acc_container').toggle()
return false;
})
})