diff --git a/lib/client/dom.js b/lib/client/dom.js
index 067aecec..9efbbb1d 100644
--- a/lib/client/dom.js
+++ b/lib/client/dom.js
@@ -1553,13 +1553,10 @@ var CloudCmd, Util, DOM, CloudFunc, Dialog;
             
             /** prevent default event */
             this.preventDefault          = function(pEvent) {
-                var lRet,
-                    lPreventDefault = pEvent && pEvent.preventDefault,
-                    lFunc           = Util.bind(lPreventDefault, pEvent);
+                var prevent = pEvent && pEvent.preventDefault,
+                    func    = prevent && prevent.bind(pEvent);
                 
-                lRet = Util.exec(lFunc);
-                
-                return lRet;
+                Util.exec(func);
             };
             
             /**
diff --git a/lib/client/polyfill.js b/lib/client/polyfill.js
index 8e8b54a6..258cef75 100644
--- a/lib/client/polyfill.js
+++ b/lib/client/polyfill.js
@@ -28,15 +28,15 @@ var Util, DOM, jQuery;
                 .appendTo(pParams_o.parent || document.head);
         };
     }
+    
+    if (!Function.bind)
+        Function.prototype.bind = function(context) {
+            var _this = this;
         
-    /* setting function context (this) */
-    Util.bind = function(pFunction, pContext){
-        var lRet;
-        
-        lRet = $.proxy(pFunction, pContext);
-        
-        return lRet;
-    };
+            return function() {
+                return _this.apply(context, arguments);
+            };
+        };
     
     /*
      * typeof callback === "function" should not be used,
diff --git a/lib/util.js b/lib/util.js
index 2c97a27d..491c160c 100644
--- a/lib/util.js
+++ b/lib/util.js
@@ -438,21 +438,21 @@
          * @param pArg
          */
         this.log                    = function() {
-            var lArg        = arguments,
-                lConsole    = Scope.console,
+            var arg         = arguments,
+                console    = Scope.console,
                 lDate       = '[' + Util.getDate() + '] ',
                 
-                lUnShift    = Util.bind([].unshift, lArg),
-                lShift      = Util.bind([].shift, lArg),
-                lJoin       = Util.bind([].join, lArg);
+                unshift     = [].unshift.bind(arg),
+                shift       = [].shift.bind(arg),
+                join        = [].join.bind(arg);
             
-            if (lConsole && lArg.length && lArg[0]) {
-                lUnShift(lDate);
-                lConsole.log.apply(lConsole, lArg);
-                lShift();
+            if (console && arg.length && arg[0]) {
+                unshift(lDate);
+                console.log.apply(console, arg);
+                shift();
             }
             
-            return lJoin(' ');
+            return join(' ');
         };
         
         /**
@@ -953,14 +953,15 @@
          * @pArg
          */
         this.execIfExist                = function(pObj, pName, pArg) {
-            var lRet;
+            var ret, bind,
+                func    = pObj && pObj[pName];
             
-            if (pObj) {
-                var lFunc = Util.bind(pObj[pName], pObj);
-                lRet = Util.exec(lFunc, pArg);
+            if (func) {
+                func    = func.bind(pObj);
+                ret     = Util.exec(func, pArg);
             }
             
-            return lRet;
+            return ret;
         };
         
         /**