Chapter is quite ok

ajax loaded content
graphics ok
interactivity ok
remains the video interactions

sites/all/themes/gui/jee/templates/node--chapitre--teaser.tpl.php

@@ -0,0 +1,21 @@
+<section id="node-<?php print $node->nid; ?>" class="<?php print $classes; ?>"<?php print $attributes; ?>>
+  <?php if (!$page): ?>
+    <h2<?php print $title_attributes; ?>><a href="<?php print $node_url; ?>"><?php print $title; ?></a></h2>
+  <?php endif; ?>
+  <div class="content">
+    <?php
+    // We hide the comments and links now so that we can render them later.
+    // dsm($content, "content");
+    hide($content['comments']);
+    hide($content['links']);
+    hide($content['field_comprendre']);
+    ?>
+    <div class="texts">
+    <?php
+      print render($content['field_comprendre']);
+      print render($content['links']);
+    ?>
+    </div>
+    <?php print render($content); ?>
+  </div>
+</section>