diff --git a/javascript/progressbar.js b/javascript/progressbar.js
index 35f20b15ba7..076f0a9736f 100644
--- a/javascript/progressbar.js
+++ b/javascript/progressbar.js
@@ -74,9 +74,7 @@ function check_gallery(id_gallery){
             if (prevSelectedIndex !== -1 && galleryButtons.length>prevSelectedIndex && !galleryBtnSelected) {
                 //automatically re-open previously selected index (if exists)
                 galleryButtons[prevSelectedIndex].click();
-		setTimeout(function (){
-                    showGalleryImage()
-                },100)
+		showGalleryImage();
             }
         })
         galleryObservers[id_gallery].observe( gallery, { childList:true, subtree:false })