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Here you can Sed posuere consectetur est at lobortis. Donec ullamcorper nulla non metus auctor fringilla. Maecenas sed diam eget risus varius blandit sit amet non magna. Donec id elit non mi porta gravida at eget metus. Praesent commodo cursus magna, vel scelerisque nisl consectetur et.

              <p>Table of Contents :</p>
<ul id="toc"></ul>

<h1>Simple JavaScript TOC</h1>
<h2>How to use?</h2>
<p>Simply inclure your JS in your page and add a UL element with “toc” as ID. That’s it.</p>
<p>If your headings do have IDs, they will be detected and the TOC will contain internal links pointing to the headings in that page.</p>
<h2>Enhancements ?</h2>
<p>One could add some CSS enhancements, with the “counter” property. This will display automatic numbers to the headings, without you to add them manually in the HTML, so you won’t have to edit every title if one day you choose to add/remove a chapter.</p>
<p>I forked this “pen” and <a href="https://codepen.io/lehollandaisvolant/pen/wJgGdR">added that very feature here</a>.</p>
<h2>Part 3</h2>
<p>Dolor sit amet…</p>
<h2>Part 4</h2>
<h3>Lorem Ipsum</h3>
<p>Lorem ipsum…</p>
<h3>P4 - Chapter 1</h3>
<h4>P4-C1 - section 1</h4>
<p>Lorem ipsum…</p>
<p>Dolor sit amet…</p>
<h4>P4-C1 - section 2</h4>
<p>Lorem ipsum…</p>
<p>Dolor sit amet…</p>
<h3>P4 - Chapter 2</h3>
<h4>P4-C2 - section 1</h4>
<p>Lorem ipsum…</p>
<p>Dolor sit amet…</p>
<h2>Part 5</h2>
<p>Lorem ipsum…</p>
<p>Dolor sit amet…</p>

              h1, h2, h3, h4 {
  text-align: center;

#toc {
  color: red;
              var TOC = document.getElementById('toc'),
headings = document.querySelectorAll('h1, h2, h3, h4, h5, h6'),
parentLevel = 1,
cursorNode = TOC;

for (var i = 0, len = headings.length ; i < len ; ++i) {
	var currentHeading = headings[i];
	var newLevel = parseInt(currentHeading.tagName.substr(1,1));
	var diff = newLevel - parentLevel;
	if (diff > 0) {
		var containerLiNode = cursorNode.lastChild;
		var ulNode = document.createElement('UL')
		cursorNode = ulNode;
		parentLevel = newLevel;		
	if (diff < 0) {
		while (0 !== diff++) {
			cursorNode = cursorNode.parentNode.parentNode;
		parentLevel = newLevel;

	var liNode = document.createElement('LI');
	if (currentHeading.hasAttribute('id')) {
		var link = document.createElement('A');
		link.setAttribute('href', '#' + currentHeading.getAttribute('id'));
	} else {
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