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---
title: Figures
---
<script>
window.onload = function() {
var lesson_episodes = [
{% for episode in site.episodes %}
"{{ episode.url }}"{% unless forloop.last %},{% endunless %}
var xmlHttp = []; /* Required since we are going to query every episode. */
for (i=0; i < lesson_episodes.length; i++) {
xmlHttp[i] = new XMLHttpRequest();
xmlHttp[i].episode = lesson_episodes[i]; /* To enable use this later. */
xmlHttp[i].onreadystatechange = function() {
if (this.readyState == 4 && this.status == 200) {
var parser = new DOMParser();
var htmlDoc = parser.parseFromString(this.responseText,"text/html");
var htmlDocArticle = htmlDoc.getElementsByTagName("article")[0];
var article_here = document.getElementById(this.episode);
var images = htmlDocArticle.getElementsByTagName("img");
if (images.length > 0) {
var h1text = htmlDocArticle.getElementsByTagName("h1")[0].innerHTML;
var htitle = document.createElement('h2');
htitle.innerHTML = h1text;
article_here.appendChild(htitle);
var image_num = 0;
for (let image of images) {
image_num++;
var title = document.createElement('p');
title.innerHTML = "<strong>Figure " + image_num + ".</strong> " + image.alt;
article_here.appendChild(title);
article_here.appendChild(image.cloneNode(false));
if (image_num < images.length) {
var hr = document.createElement('hr');
article_here.appendChild(hr);
}
}
episode_url = "{{ relative_root_path }}" + lesson_episodes[i];
xmlHttp[i].open("GET", episode_url);
xmlHttp[i].send(null);
}
}
</script>
{% comment %}
Create anchor for each one of the episodes.
{% endcomment %}
{% for episode in site.episodes %}
<article id="{{ episode.url }}" class="figures"></article>