diff --git a/lib/client/viewer.js b/lib/client/viewer.js
index 8be61a5c..a00714c3 100644
--- a/lib/client/viewer.js
+++ b/lib/client/viewer.js
@@ -2,7 +2,9 @@ var CloudCommander, CloudFunc;
 /* object contains viewer FancyBox
  * https://github.com/fancyapps/fancyBox
  */
-CloudCommander.Viewer = {};
+CloudCommander.Viewer = {getByClass  : function(pClass){
+        return document.getElementsByClassName(pClass);
+    }};
 CloudCommander.Viewer.FancyBox = {
     load: function(){