diff --git a/Asset/AssetManager.js b/Asset/AssetManager.js
index 9b23732..bdf414c 100644
--- a/Asset/AssetManager.js
+++ b/Asset/AssetManager.js
@@ -9,6 +9,8 @@
  */
 (function (jsOMS)
 {
+    "use strict";
+
     /** @namespace jsOMS.Asset */
     jsOMS.Autoloader.defineNamespace('jsOMS.Asset');
 
diff --git a/Autoloader.js b/Autoloader.js
index 386fb56..1658797 100644
--- a/Autoloader.js
+++ b/Autoloader.js
@@ -9,6 +9,8 @@
  */
 (function (jsOMS)
 {
+    "use strict";
+    
     jsOMS.Autoloader            = {};
     jsOMS.Autoloader.loaded     = [];
     jsOMS.Autoloader.namespaced = [];
diff --git a/Config/Options.js b/Config/Options.js
index 252ece4..e9f4634 100644
--- a/Config/Options.js
+++ b/Config/Options.js
@@ -9,6 +9,8 @@
  */
 (function (jsOMS)
 {
+    "use strict";
+
     /** @namespace jsOMS.Config */
     jsOMS.Autoloader.defineNamespace('jsOMS.Config');
 
diff --git a/Log/LogLevel.enum.js b/Log/LogLevel.enum.js
index e46d2c5..18dbadd 100644
--- a/Log/LogLevel.enum.js
+++ b/Log/LogLevel.enum.js
@@ -9,6 +9,8 @@
  */
 (function (jsOMS)
 {
+    "use strict";
+
     /** @namespace jsOMS.Log */
     jsOMS.Autoloader.defineNamespace('jsOMS.Log');
 
diff --git a/Math/Stochastic/Average.js b/Math/Stochastic/Average.js
index 9e82efd..1046e16 100644
--- a/Math/Stochastic/Average.js
+++ b/Math/Stochastic/Average.js
@@ -10,6 +10,7 @@
 (function (jsOMS)
 {
     "use strict";
+    
     /** @namespace jsOMS.Math.Stochastic.Average */
     jsOMS.Autoloader.defineNamespace('jsOMS.Math.Stochastic.Average');
 
diff --git a/Message/Request/BrowserType.enum.js b/Message/Request/BrowserType.enum.js
index 7dceb02..6bd7005 100644
--- a/Message/Request/BrowserType.enum.js
+++ b/Message/Request/BrowserType.enum.js
@@ -9,6 +9,8 @@
  */
 (function (jsOMS)
 {
+    "use strict";
+
     /** @namespace jsOMS.Message.Request */
     jsOMS.Autoloader.defineNamespace('jsOMS.Message.Request');
 
diff --git a/Message/Request/OSType.enum.js b/Message/Request/OSType.enum.js
index 05f1185..9d14fa6 100644
--- a/Message/Request/OSType.enum.js
+++ b/Message/Request/OSType.enum.js
@@ -9,6 +9,8 @@
  */
 (function (jsOMS)
 {
+    "use strict";
+
     /** @namespace jsOMS.Message.Request */
     jsOMS.Autoloader.defineNamespace('jsOMS.Message.Request');
     
diff --git a/Message/Request/Request.js b/Message/Request/Request.js
index c44b6e9..56baf50 100644
--- a/Message/Request/Request.js
+++ b/Message/Request/Request.js
@@ -9,6 +9,8 @@
  */
 (function (jsOMS)
 {
+    "use strict";
+
     /** @namespace jsOMS.Message.Request */
     jsOMS.Autoloader.defineNamespace('jsOMS.Message.Request');
 
@@ -251,7 +253,7 @@
      */
     jsOMS.Message.Request.Request.prototype.getData = function ()
     {
-        return this.data
+        return this.data;
     };
 
     /**
@@ -343,7 +345,7 @@
                 // todo: server is handling request
             } else {
                 // todo: create handler for error returns
-                console.log(self.xhr)
+                console.log(self.xhr);
             }
         };
 
diff --git a/Message/Request/RequestData.enum.js b/Message/Request/RequestData.enum.js
index 7f9a0fc..81ef04a 100644
--- a/Message/Request/RequestData.enum.js
+++ b/Message/Request/RequestData.enum.js
@@ -9,6 +9,8 @@
  */
 (function (jsOMS)
 {
+    "use strict";
+
     /** @namespace jsOMS.Message.Request */
     jsOMS.Autoloader.defineNamespace('jsOMS.Message.Request');
 
diff --git a/Message/Request/RequestManager.js b/Message/Request/RequestManager.js
index b27eb33..23bf440 100644
--- a/Message/Request/RequestManager.js
+++ b/Message/Request/RequestManager.js
@@ -11,6 +11,8 @@
  */
 (function (jsOMS)
 {
+    "use strict";
+
     /** @namespace jsOMS.Message.Request */
     jsOMS.Autoloader.defineNamespace('jsOMS.Message.Request');
 
diff --git a/Message/Request/RequestMethod.enum.js b/Message/Request/RequestMethod.enum.js
index 6db2e4f..60360f7 100644
--- a/Message/Request/RequestMethod.enum.js
+++ b/Message/Request/RequestMethod.enum.js
@@ -9,6 +9,8 @@
  */
 (function (jsOMS)
 {
+    "use strict";
+
     /** @namespace jsOMS.Message.Request */
     jsOMS.Autoloader.defineNamespace('jsOMS.Message.Request');
     
diff --git a/Message/Request/RequestType.enum.js b/Message/Request/RequestType.enum.js
index 4ac9879..401ec64 100644
--- a/Message/Request/RequestType.enum.js
+++ b/Message/Request/RequestType.enum.js
@@ -9,6 +9,8 @@
  */
 (function (jsOMS)
 {
+    "use strict";
+
     /** @namespace jsOMS.Message.Request */
     jsOMS.Autoloader.defineNamespace('jsOMS.Message.Request');
     
diff --git a/Message/Response/Response.js b/Message/Response/Response.js
index ca8e3a1..ee0efa8 100644
--- a/Message/Response/Response.js
+++ b/Message/Response/Response.js
@@ -11,6 +11,8 @@
  */
 (function (jsOMS)
 {
+    "use strict";
+
     /** @namespace jsOMS.Message.Response */
     jsOMS.Autoloader.defineNamespace('jsOMS.Message.Response');
 
diff --git a/Message/Response/ResponseManager.js b/Message/Response/ResponseManager.js
index 6ab6d16..f181694 100644
--- a/Message/Response/ResponseManager.js
+++ b/Message/Response/ResponseManager.js
@@ -11,6 +11,8 @@
  */
 (function (jsOMS)
 {
+    "use strict";
+
     /** @namespace jsOMS.Message.Response */
     jsOMS.Autoloader.defineNamespace('jsOMS.Message.Response');
 
diff --git a/Message/Response/ResponseResultType.enum.js b/Message/Response/ResponseResultType.enum.js
index 7dc79d7..f341150 100644
--- a/Message/Response/ResponseResultType.enum.js
+++ b/Message/Response/ResponseResultType.enum.js
@@ -9,6 +9,8 @@
  */
 (function (jsOMS)
 {
+    "use strict";
+
     /** @namespace jsOMS.Message.Response */
     jsOMS.Autoloader.defineNamespace('jsOMS.Message.Response');
     
diff --git a/Message/Response/ResponseType.enum.js b/Message/Response/ResponseType.enum.js
index 22f004a..87fb6da 100644
--- a/Message/Response/ResponseType.enum.js
+++ b/Message/Response/ResponseType.enum.js
@@ -9,6 +9,8 @@
  */
 (function (jsOMS)
 {
+    "use strict";
+
     /** @namespace jsOMS.Message.Response */
     jsOMS.Autoloader.defineNamespace('jsOMS.Message.Response');
     
diff --git a/UI/Button.js b/UI/Button.js
index 6ca8ba6..f5b548f 100644
--- a/UI/Button.js
+++ b/UI/Button.js
@@ -9,6 +9,8 @@
  */
 (function (jsOMS)
 {
+    "use strict";
+
     /** @namespace jsOMS.UI */
     jsOMS.Autoloader.defineNamespace('jsOMS.UI');
 
diff --git a/UI/FormManager.js b/UI/FormManager.js
index b6a2202..cef7fe7 100644
--- a/UI/FormManager.js
+++ b/UI/FormManager.js
@@ -9,6 +9,8 @@
  */
 (function (jsOMS)
 {
+    "use strict";
+
     /** @namespace jsOMS.UI */
     jsOMS.Autoloader.defineNamespace('jsOMS.UI');
 
diff --git a/UI/Input.js b/UI/Input.js
index 41b4748..3229214 100644
--- a/UI/Input.js
+++ b/UI/Input.js
@@ -10,6 +10,7 @@
 (function (jsOMS)
 {
     "use strict";
+    
     /** @namespace jsOMS.UI.Input*/
     jsOMS.Autoloader.defineNamespace('jsOMS.UI.Input');
 
@@ -123,7 +124,7 @@
                     }
                 }
             } catch (exception) {
-                self.app.logger.error('Invalid JSON object: ' + xhr, 'FormManager')
+                self.app.logger.error('Invalid JSON object: ' + xhr, 'FormManager');
                 return false;
             }
         });
diff --git a/UI/Input/InputManager.js b/UI/Input/InputManager.js
index d18df29..bbe3969 100644
--- a/UI/Input/InputManager.js
+++ b/UI/Input/InputManager.js
@@ -9,6 +9,8 @@
  */
 (function (jsOMS)
 {
+    "use strict";
+
     /** @namespace jsOMS.UI.Input */
     jsOMS.Autoloader.defineNamespace('jsOMS.UI.Input');
 
diff --git a/UI/Input/Keyboard/KeyboardManager.js b/UI/Input/Keyboard/KeyboardManager.js
index 915209d..2a01abb 100644
--- a/UI/Input/Keyboard/KeyboardManager.js
+++ b/UI/Input/Keyboard/KeyboardManager.js
@@ -9,6 +9,8 @@
  */
 (function (jsOMS)
 {
+    "use strict";
+
     /** @namespace jsOMS.UI.Input.Keyboard */
     jsOMS.Autoloader.defineNamespace('jsOMS.UI.Input.Keyboard');
 
diff --git a/UI/Input/Mouse/ClickType.enum.js b/UI/Input/Mouse/ClickType.enum.js
index ad82c7b..4ea4859 100644
--- a/UI/Input/Mouse/ClickType.enum.js
+++ b/UI/Input/Mouse/ClickType.enum.js
@@ -9,6 +9,8 @@
  */
 (function (jsOMS)
 {
+    "use strict";
+
     /** @namespace jsOMS.UI.Input.Mouse */
     jsOMS.Autoloader.defineNamespace('jsOMS.UI.Input.Mouse');
 
diff --git a/UI/Input/Mouse/EventType.enum.js b/UI/Input/Mouse/EventType.enum.js
index eceee48..e5e3a1f 100644
--- a/UI/Input/Mouse/EventType.enum.js
+++ b/UI/Input/Mouse/EventType.enum.js
@@ -9,6 +9,8 @@
  */
 (function (jsOMS)
 {
+    "use strict";
+
     /** @namespace jsOMS.UI.Input.Mouse */
     jsOMS.Autoloader.defineNamespace('jsOMS.UI.Input.Mouse');
 
diff --git a/UI/Input/Mouse/MouseManager.js b/UI/Input/Mouse/MouseManager.js
index 5798805..acf806c 100644
--- a/UI/Input/Mouse/MouseManager.js
+++ b/UI/Input/Mouse/MouseManager.js
@@ -9,6 +9,8 @@
  */
 (function (jsOMS)
 {
+    "use strict";
+
     /** @namespace jsOMS.UI.Input.Mouse */
     jsOMS.Autoloader.defineNamespace('jsOMS.UI.Input.Mouse');
 
diff --git a/UI/Input/Touch/TouchManager.js b/UI/Input/Touch/TouchManager.js
index 091f14d..ca147ef 100644
--- a/UI/Input/Touch/TouchManager.js
+++ b/UI/Input/Touch/TouchManager.js
@@ -9,6 +9,8 @@
  */
 (function (jsOMS)
 {
+    "use strict";
+
     /** @namespace jsOMS.UI.Input.Touch */
     jsOMS.Autoloader.defineNamespace('jsOMS.UI.Input.Touch');
 
diff --git a/UI/UIManager.js b/UI/UIManager.js
index 7809c8e..cea1778 100644
--- a/UI/UIManager.js
+++ b/UI/UIManager.js
@@ -9,6 +9,8 @@
  */
 (function (jsOMS)
 {
+    "use strict";
+
     /** @namespace jsOMS.UI */
     jsOMS.Autoloader.defineNamespace('jsOMS.UI');
     
diff --git a/Uri/UriFactory.js b/Uri/UriFactory.js
index 7f4d735..1220095 100644
--- a/Uri/UriFactory.js
+++ b/Uri/UriFactory.js
@@ -9,6 +9,8 @@
  */
 (function (jsOMS)
 {
+    "use strict";
+
     /** @namespace jsOMS.Uri.UriFactory */
     jsOMS.Autoloader.defineNamespace('jsOMS.Uri.UriFactory');
 
diff --git a/Utils/oLib.js b/Utils/oLib.js
index 0ebd4b4..4445e1c 100644
--- a/Utils/oLib.js
+++ b/Utils/oLib.js
@@ -7,6 +7,7 @@
  */
 (function (jsOMS)
 {
+    "use strict";
 
     /**
      * Class finder
@@ -64,7 +65,7 @@
     jsOMS.removeClass = function (ele, cls)
     {
         if (jsOMS.hasClass(ele, cls)) {
-            var reg = new RegExp('(\\s|^)' + cls + '(\\s|$)');
+            var reg       = new RegExp('(\\s|^)' + cls + '(\\s|$)');
             ele.className = ele.className.replace(reg, '');
         }
     };
@@ -271,20 +272,17 @@
         let out = jsOMS.clone(target);
 
         for (let p in source) {
-            try {
+            if (source.hasOwnProperty(p)) {
                 // Property in destination object set; update its value.
-                if ( source[p].constructor==Object ) {
+                if (typeof source[p] === 'object') {
                     out[p] = jsOMS.merge(out[p], source[p]);
 
                 } else {
                     out[p] = source[p];
 
                 }
-
-            } catch(e) {
-                // Property in destination object not set; create it and set its value.
+            } else {
                 out[p] = source[p];
-
             }
         }
 
@@ -299,5 +297,5 @@
     jsOMS.clone = function (obj)
     {
         return obj;
-    }
+    };
 }(window.jsOMS = window.jsOMS || {}));