diff --git a/lib/client/editor.js b/lib/client/editor.js
index dd16bfaf..1476df59 100644
--- a/lib/client/editor.js
+++ b/lib/client/editor.js
@@ -62,7 +62,8 @@ CloudCommander.Editor.CodeMirror = {
                             '}'
                 });  
                           
-                CloudCommander.jsload('http://codemirror.net/mode/xml/xml.js', showEditor(pParent));
+                CloudCommander.jsload('http://codemirror.net/mode/xml/xml.js',
+                    showEditor(pParent));
             };
         };
         
diff --git a/lib/client/viewer.js b/lib/client/viewer.js
index 42a15254..6bead242 100644
--- a/lib/client/viewer.js
+++ b/lib/client/viewer.js
@@ -21,6 +21,8 @@ CloudCommander.Viewer.FuncyBox = {
                 
     },
     set: function(){
+        if(this.getByClass('fancybox').length)
+            return;
         try{
             /* get current panel (left or right) */
             var lPanel = this.getByClass('current-file');
@@ -46,4 +48,37 @@ CloudCommander.Viewer.FuncyBox = {
     getByClass  : function(pClass){
         return document.getElementsByClassName(pClass);
     }
-};
\ No newline at end of file
+};
+CloudCommander.Viewer.Keys = (function(){
+    "use strict";
+    
+    /* loading js and css of CodeMirror */
+    CloudCommander.Editor.CodeMirror.load();
+    
+    var key_event=function(event){
+
+        /* если клавиши можно обрабатывать */
+        if(CloudCommander.keyBinded){
+            /* if f4 pressed */
+            if(event.keyCode===114){
+                CloudCommander.Viewer.FuncyBox.set();
+                var lCurrent = this.getByClass('current-file');
+                      lCurrent.length &&
+                        (lCurrent = lCurrent[0]);
+                
+                lCurrent.getElementsByClassName('fancybox') &&
+                    lCurrent.click();
+            }
+        }
+    };
+       
+    /* добавляем обработчик клавишь */
+    if (document.addEventListener)                
+        document.addEventListener('keydown', key_event,false);
+        
+    else        
+        document.onkeypress=key_event;
+    
+    /* клавиши назначены*/
+    CloudCommander.keyBinded=true;
+});
\ No newline at end of file