diff --git a/client.js b/client.js
index d21bdac7..f2efb96a 100644
--- a/client.js
+++ b/client.js
@@ -490,17 +490,17 @@ CloudClient._changeLinks            = function(pPanelID){
     /* меняем ссылки на ajax-запросы */
     var lPanel = getById(pPanelID),
         a = lPanel.getElementsByTagName('a'),
-    
-    /* номер ссылки иконки обновления страницы */
+        
+        /* номер ссылки иконки обновления страницы */
         lREFRESHICON = 0,
         
-     /* путь в ссылке, который говорит
-      * что js отключен
-      */
+        /* путь в ссылке, который говорит
+        * что js отключен
+        */
         lNoJS_s = CloudFunc.NOJS,
         lFS_s   = CloudFunc.FS,
         
-    /* right mouse click function varible */
+        /* right mouse click function varible */
         lOnContextMenu_f = function(pEvent){
             var lReturn_b = true;
             
@@ -510,10 +510,10 @@ CloudClient._changeLinks            = function(pPanelID){
              * currentTarget - DOM event
              * target        - jquery event
              */
-            var lTarget = pEvent.currentTarget || pEvent.target;        
+            var lTarget = pEvent.currentTarget || pEvent.target;
             DOM.setCurrentFile(lTarget);
             
-            if(Util.isFunction(cloudcmd.Menu) ){            
+            if(Util.isFunction(cloudcmd.Menu) ){
                 cloudcmd.Menu({
                     x: pEvent.x,
                     y: pEvent.y
diff --git a/lib/client/editor/_codemirror.js b/lib/client/editor/_codemirror.js
index 565ae2fd..f4711e1d 100644
--- a/lib/client/editor/_codemirror.js
+++ b/lib/client/editor/_codemirror.js
@@ -202,11 +202,11 @@ var CloudCommander, Util, DOM, CloudFunc, CodeMirror;
             /* если клавиши можно обрабатывать */
             if( KeyBinding.get() ){
                 /* if f4 or f3 pressed */
-                var lF3 = cloudcmd.KEY.F3;
-                var lF4 = cloudcmd.KEY.F4;
-                var lShow = Util.bind( CodeMirrorEditor.show, CodeMirrorEditor );
+                var lF3 = cloudcmd.KEY.F3,
+                    lF4 = cloudcmd.KEY.F4,
+                    lShow = Util.bind( CodeMirrorEditor.show, CodeMirrorEditor );
                                 
-                if(!pEvent.shiftKey){
+                if(!pEvent.shiftKey)
                     switch(pEvent.keyCode)
                     {
                         case lF4:
@@ -217,24 +217,18 @@ var CloudCommander, Util, DOM, CloudFunc, CodeMirror;
                             ReadOnly = true;
                             lShow();
                             break;
-                    }                    
-                }
+                    }
             }
         };
            
         /* добавляем обработчик клавишь */
-        if (document.addEventListener)                
-            document.addEventListener('keydown', key_event, false);        
+        if (document.addEventListener)
+            document.addEventListener('keydown', key_event, false);
                   
         else{
-            var lFunc;
-            if( Util.isFunction(document.onkeydown) )
-                lFunc = document.onkeydown;
-            
+            var lFunc = document.onkeydown;
             document.onkeydown = function(){
-                if(lFunc)
-                    lFunc();
-                
+                Util.exec(lFunc);
                 key_event();
             };
         }
diff --git a/lib/client/menu.js b/lib/client/menu.js
index c0808706..25335767 100644
--- a/lib/client/menu.js
+++ b/lib/client/menu.js
@@ -23,14 +23,13 @@ var CloudCommander, Util, DOM, $;
      */
     function showEditor(pReadOnly){
         DOM.Images.showLoad();
-        var lEditor = pReadOnly ? cloudcmd.Viewer : cloudcmd.Editor;
+        var lEditor = pReadOnly ? cloudcmd.Viewer : cloudcmd.Editor,
+            lResult = Util.exec(lEditor, pReadOnly);
         
-        if( Util.isFunction(lEditor) )
-            lEditor(pReadOnly);
-        else{
+        if(!lResult){
             lEditor = lEditor.get();
-            if(lEditor && lEditor.show)
-                lEditor.show();
+            if(lEditor)
+                Util.exec(lEditor.show);
         }
     }
     
diff --git a/lib/client/viewer.js b/lib/client/viewer.js
index f04fab10..1cf11556 100644
--- a/lib/client/viewer.js
+++ b/lib/client/viewer.js
@@ -184,14 +184,12 @@ var CloudCommander, Util, DOM, CloudFunc, $;
     FancyBox.show                       = function(pCallBack){
         set();
                 
-        var lConfig = this.getConfig();
-        
-        if( Util.isFunction(pCallBack) )
-            pCallBack();            
-        else{
-            var lCurrentFile = DOM.getCurrentFile();
+        var lConfig = this.getConfig(),
+            lResult = Util.exec(pCallBack);
+        if(!lResult){
+            var lCurrentFile = DOM.getCurrentFile(),
+                lA = DOM.getByClass('fancybox', lCurrentFile)[0];
             
-            var lA = DOM.getByClass('fancybox', lCurrentFile)[0];
             if(lA){
                 if(lA.rel)
                     $.fancybox.open({ href : lA.href },