diff --git a/koha-tmpl/opac-tmpl/prog/en/js/openlibrary.js b/koha-tmpl/opac-tmpl/prog/en/js/openlibrary.js
index afac4d335a..e5b9d2835c 100644
--- a/koha-tmpl/opac-tmpl/prog/en/js/openlibrary.js
+++ b/koha-tmpl/opac-tmpl/prog/en/js/openlibrary.js
@@ -30,42 +30,37 @@ KOHA.OpenLibrary = {
             "&callback=KOHA.OpenLibrary.olCallBack&jscmd=data");
         scriptElement.setAttribute("type", "text/javascript");
         document.documentElement.firstChild.appendChild(scriptElement);
-
     },
 
-
-
     /**
      * Add cover pages <div
      * and link to preview if div id is gbs-thumbnail-preview
      */
     olCallBack: function(booksInfo) {
-    for (id in booksInfo) {
-       var book = booksInfo[id];
-       var isbn = id.substring(5);
-       $("."+isbn).each(function() {
-       var is_opacdetail = /openlibrary-thumbnail-preview/.exec($(this).attr("id"));
-           var a = document.createElement("a");
-           a.href = booksInfo.url;
-           if (book.cover) {
-               var img = document.createElement("img");
-               if (is_opacdetail) {
-        img.src = book.cover.medium;
-        $(this).append(img);
-                $(this).append(
-                       '<div class="results_summary">' + '<a href="' + book.url + '">Preview</a></div>'
-                   );
-               } else {
-            img.src = book.cover.small;
-            $(this).append(img);
+        for (id in booksInfo) {
+            var book = booksInfo[id];
+            var isbn = id.substring(5);
+            $("."+isbn).each(function() {
+                var is_opacdetail = /openlibrary-thumbnail-preview/.exec($(this).attr("id"));
+                var a = document.createElement("a");
+                a.href = booksInfo.url;
+                if (book.cover) {
+                    var img = document.createElement("img");
+                    if (is_opacdetail) {
+                        img.src = book.cover.medium;
+                        $(this).append(img);
+                        $(this).append('<div class="results_summary">' + '<a href="' + book.url + '">Preview</a></div>');
+                    } else {
+                        img.src = book.cover.small;
+                        $(this).append(img);
+                    }
+                } else {
+                    var message =  document.createElement("span");
+                    $(message).attr("class","no-image");
+                    $(message).html(NO_OL_JACKET);
+                    $(this).append(message);
+                }
+            });
         }
-           } else {
-               var message =  document.createElement("span");
-               $(message).attr("class","no-image");
-               $(message).html(NO_OL_JACKET);
-               $(this).append(message);
-           }
-       });
-   }
- }
+    }
 };