mayBeDropable exists:dropable;
                      dropable python:True if mayBeDropable and dropable else False"
          i18n:domain="portfolio">
-      <div metal:use-macro="here/batch_macros/macros/navigation">batch navigation</div>
       <div id="lightbox" tal:attributes="class python:'lightbox photo-drop-target' if dropable else 'lightbox'">
         <span metal:define-macro="thumbnails" tal:repeat="info infos" tal:omit-tag="">
           <span tal:define="size info/thumbSize;
         </span>
       </div>
       <br clear="all"/>
-      <div metal:use-macro="here/batch_macros/macros/navigation">batch navigation</div>
+      <noscript>
+        <div metal:use-macro="here/batch_macros/macros/navigation">batch navigation</div>
+      </noscript>
       <script type="text/javascript" tal:condition="not:dropable">
         new Lightbox(document.getElementById('lightbox'),
                      document.getElementById('lightbox_toolbar'));
 
 Lightbox = function(grid, toolbar) {
        var self = this;
        this.grid = grid;
+    this.lastSlide = this.grid.children[this.grid.children.length-1];
        this.toolbar = toolbar;
        if (toolbar) {
                this.toolbarFixed = false;
                this.toolbarFixed = false;
                this.switchToolBarPositioning(false);
        }
+    if (window.scrollY > this.lastSlide.firstElementChild.offsetTop - getWindowHeight()) {
+        console.log('À boire !');
+    }
 };
 
 Lightbox.prototype.mouseClickHandler = function(evt) {