I load my images with URLs stored in database.
I build the tags contained in the rows retrieved according to my table like this :

while ($photo = mysqlfetcharray($photoQuery) ) {

            $pathPetite = $path.'/'.$photo['petite'];

            $pathGrande = $path.'/'.$photo['grande'];

            $pathOriginale = $path.'/'.$photo['originale'];


            $miniaturePath = $pathPetite;

            $galeriePath = $pathGrande;

                list($width, $height) = getimagesize($galeriePath);

                echo &#39;&lt;figure itemprop=&quot;associatedMedia&quot; itemscope itemtype=&quot;<a rel="nofollow noreferrer" href="http://schema.org/ImageObject&quot;">http://schema.org/ImageObject&quot;</a>&gt;&#39;;

                echo &#39;  &lt;a href=&quot;./&#39;.$galeriePath.&#39;&quot; itemprop=&quot;contentUrl&quot; data-size=&quot;&#39;.$width.&#39;x&#39;.$height.&#39;&quot;&gt;&#39;;

                echo &#39;      &lt;center&gt;&lt;img src=&quot;./&#39;.$miniaturePath.&#39;&quot; itemprop=&quot;thumbnail&quot; alt=&quot;&#39;.$photo[&#39;description&#39;].&#39;&quot; title=&quot;&#39;.$photo[&#39;id&#39;].&#39;-&#39;.$photo[&#39;originale&#39;].&#39;&quot; /&gt;&lt;/center&gt;&#39;;

                echo &#39;  &lt;/a&gt;&#39;;

                echo &#39;  &lt;figcaption itemprop_titre=&quot;&#39;.$photo[&#39;titre&#39;].&#39;&quot; itemprop_desc=&quot;&#39;.$photo[&#39;description&#39;].&#39;&quot; itemprop_originaleurl=&quot;&#39;.$pathOriginale.&#39;&quot;&gt;&lt;/figcaption&gt;&#39;;

                if ($copocorp_user_id == $album[&#39;idUser&#39;]) {

                    sql2html(&quot;SELECT titre as &#39;Titre&#39;, description as &#39;Description&#39;, petite as &#39;Petite&#39;, grande as &#39;Grande&#39;, originale as &#39;Originale&#39; FROM `copocorp_album_photo` WHERE id = &quot;.$photo[&#39;id&#39;], &quot;Modifier&quot;, &quot;id_&quot;.$photo[&#39;id&#39;].&quot;_updatePhoto&quot;, &quot;UPDATE&quot;, &quot;btn btn-success dropdown-toggle&quot;);

                }

                echo &#39;&lt;/figure&gt;&#39;;

My function sql2html add a button and the pop-up windows linked.
But the problem is that if I click on the button, then the gallery loads and the pop-up is displayed in the background.
And after, if I click on the pop-up, or on the pop-up fields, the gallery still appears.

I suppose I have to modify this part of code :
// find root element of slide

            var clickedListItem = closest(eTarget, function(el) {

                return (el.tagName && el.tagName.toUpperCase() === 'FIGURE');

            });

To exclude the pop-up and the button of the item list, but I do not understand how to do this - If someone can help me, thank you very much to him