diff --git a/lib/client/viewer.js b/lib/client/viewer.js
index 62921d41..1b213be5 100644
--- a/lib/client/viewer.js
+++ b/lib/client/viewer.js
@@ -133,7 +133,7 @@ CloudCommander.Viewer.Keys                  = (function(){
                 /* если клавиши можно обрабатывать */
                 if(CloudCommander.keyBinded)
                     /* if f3 pressed */
-                    if(event.keyCode===114){
+                    if(event.keyCode === CloudCommander.KEY.F3){
                         CloudCommander.Viewer.FancyBox.show();
                     
                     event.preventDefault();                    
@@ -145,9 +145,18 @@ CloudCommander.Viewer.Keys                  = (function(){
         if (document.addEventListener)                
             document.addEventListener('keydown', key_event(),false);
             
-        else        
-            document.onkeypress=key_event;
-        
+        else{
+            var lFunc;
+            if(typeof document.onkeydown === 'function')
+                lFunc = document.onkeydown;
+            
+            document.onkeydown = function(){
+                if(lFunc)
+                    lFunc();
+                
+                key_event();
+            }
+        }
         /* showing images  preview*/
         CloudCommander.Viewer.FancyBox.show();
     });