--- a/player/js/player.js	Fri Jun 07 17:24:56 2013 +0200
+++ b/player/js/player.js	Fri Jun 07 17:36:27 2013 +0200
@@ -350,7 +350,7 @@
                 slides.forEach(function(slide) {
                     slide.image = new Image();
                     slide.image.onload = checkloaded;
-                    slide.image.src = slide.url;
+                    slide.image.src = slide.url + "?maxwidth=650&maxheight=452";
                 });
                 
                 checkloaded();