diff --git a/lib/client/keyBinding.js b/lib/client/keyBinding.js
index 0e359478..6d1b5b83 100644
--- a/lib/client/keyBinding.js
+++ b/lib/client/keyBinding.js
@@ -11,6 +11,11 @@ CloudCommander.keyBinding=(function(){
         return document.getElementById(pId);
     };
     
+    var lTabPanel   = {
+        left        : {},
+        right       : {}
+        
+    };
     var key_event=function(event){            
             var lCurrentFile;
             var lName, lTop;
@@ -31,14 +36,20 @@ CloudCommander.keyBinding=(function(){
                             
                         /* changing parent panel of curent-file */
                         var lId = lCurrentFile.parentElement.id;
-                        if(lId === 'right')lId = 'left';
-                        else lId = 'right';
                         
-                        lCurrentFile.className = '';
+                        lTabPanel[lId] = lCurrentFile;
+                            if (lTabPanel[lId])
+                                lTabPanel[lId].className = lCurrentFile;
+                            else
+                                getById(lId).getElementsByTagName('li')[2]
+                                    .className = lCURRENT_FILE;
                         
-                        getById(lId).getElementsByTagName('li')[2]
-                            .className = lCURRENT_FILE;
+                        lId === 'right'     &&
+                            (lId = 'left')  ||
+                            (lId = 'right');
                         
+                        lCurrentFile.className = '';                        
+                                                                                                
                     }catch(error){console.log(error);}                    
                 }                
                 /* if f3 pressed */