diff --git a/lib/client/keyBinding.js b/lib/client/keyBinding.js
index 256ef706..e294bb3e 100644
--- a/lib/client/keyBinding.js
+++ b/lib/client/keyBinding.js
@@ -3,22 +3,23 @@ var CloudFunc;
 CloudCommander.keyBinding = (function(){
     "use strict";
   
-  var Util = new CloudCommander.Util();
+    var Util = new CloudCommander.Util();
       
+    /* saving state of tabs varibles */
     var lTabPanel   = {
         left        : 0,
         right       : 0
         
     };
     
+    /* Key constants*/
     var lKEY = {
         TAB         : 9,        
         ENTER       : 13,
         
         PAGE_DOWN   : 34,
         END         : 35,
-        HOME        : 36,
-        
+        HOME        : 36,        
         UP          : 38,
         DOWN        : 40,