diff --git a/composer.json b/composer.json
index e965b8b..104c742 100755
--- a/composer.json
+++ b/composer.json
@@ -18,6 +18,7 @@
     "minimum-stability": "RC",
     "require": {
         "php": ">=7.0",
+        "alexandernst/yii2-device-detect": "0.0.12",
         "artweb/artbox-core" : ">0.0.10"
     },
     "require-dev": {
diff --git a/composer.lock b/composer.lock
old mode 100755
new mode 100644
index 0ccd4af..e93a011
--- a/composer.lock
+++ b/composer.lock
@@ -4,7 +4,8 @@
         "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#composer-lock-the-lock-file",
         "This file is @generated automatically"
     ],
-    "content-hash": "20c2db805fdbbc718dc7c57c39800648",
+    "hash": "163dd69cbf4410df8959165e28efb09e",
+    "content-hash": "075f417c5bcd78cfc58694977cf459e9",
     "packages": [
         {
             "name": "2amigos/yii2-tinymce-widget",
@@ -64,7 +65,55 @@
                 "yii 2",
                 "yii2"
             ],
-            "time": "2017-06-09T14:12:14+00:00"
+            "time": "2017-06-09 14:12:14"
+        },
+        {
+            "name": "alexandernst/yii2-device-detect",
+            "version": "0.0.12",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/alexandernst/yii2-device-detect.git",
+                "reference": "ae9557fb9b04abf8ad9ed8cf7e1b5daa7bdf10ec"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/alexandernst/yii2-device-detect/zipball/ae9557fb9b04abf8ad9ed8cf7e1b5daa7bdf10ec",
+                "reference": "ae9557fb9b04abf8ad9ed8cf7e1b5daa7bdf10ec",
+                "shasum": ""
+            },
+            "require": {
+                "mobiledetect/mobiledetectlib": "~2.8",
+                "yiisoft/yii2": "*"
+            },
+            "type": "yii2-extension",
+            "autoload": {
+                "psr-4": {
+                    "alexandernst\\devicedetect\\": ""
+                }
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "GNU General Public License v3"
+            ],
+            "authors": [
+                {
+                    "name": "Alexander Nestorov",
+                    "email": "alexandernst@gmail.com"
+                }
+            ],
+            "description": "Yii2 extension for Mobile-Detect library",
+            "keywords": [
+                "desktop",
+                "detect",
+                "device",
+                "extension",
+                "mobile",
+                "phone",
+                "tablet",
+                "widget",
+                "yii2"
+            ],
+            "time": "2017-08-07 16:37:25"
         },
         {
             "name": "artweb/artbox-core",
@@ -125,7 +174,7 @@
                 "BSD-3-Clause"
             ],
             "description": "Artbox core extension",
-            "time": "2018-05-21T12:55:30+00:00"
+            "time": "2018-05-21 12:55:30"
         },
         {
             "name": "bower-asset/amcharts",
@@ -537,7 +586,7 @@
                 "markdown",
                 "markdown-extra"
             ],
-            "time": "2017-07-16T21:13:23+00:00"
+            "time": "2017-07-16 21:13:23"
         },
         {
             "name": "container-interop/container-interop",
@@ -568,7 +617,7 @@
             ],
             "description": "Promoting the interoperability of container objects (DIC, SL, etc.)",
             "homepage": "https://github.com/container-interop/container-interop",
-            "time": "2017-02-14T19:40:03+00:00"
+            "time": "2017-02-14 19:40:03"
         },
         {
             "name": "doctrine/lexer",
@@ -622,7 +671,7 @@
                 "lexer",
                 "parser"
             ],
-            "time": "2014-09-09T13:34:57+00:00"
+            "time": "2014-09-09 13:34:57"
         },
         {
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@@ -679,7 +728,7 @@
                 "validation",
                 "validator"
             ],
-            "time": "2018-08-16T20:49:45+00:00"
+            "time": "2018-08-16 20:49:45"
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             "name": "ezyang/htmlpurifier",
@@ -726,7 +775,7 @@
             "keywords": [
                 "html"
             ],
-            "time": "2018-02-23T01:58:20+00:00"
+            "time": "2018-02-23 01:58:20"
         },
         {
             "name": "firebase/php-jwt",
@@ -772,7 +821,7 @@
             ],
             "description": "A simple library to encode and decode JSON Web Tokens (JWT) in PHP. Should conform to the current spec.",
             "homepage": "https://github.com/firebase/php-jwt",
-            "time": "2017-06-27T22:17:23+00:00"
+            "time": "2017-06-27 22:17:23"
         },
         {
             "name": "fortawesome/font-awesome",
@@ -820,7 +869,7 @@
                 "font",
                 "icon"
             ],
-            "time": "2016-10-24T15:52:54+00:00"
+            "time": "2016-10-24 15:52:54"
         },
         {
             "name": "google/apiclient",
@@ -879,20 +928,20 @@
             "keywords": [
                 "google"
             ],
-            "time": "2018-06-20T15:52:20+00:00"
+            "time": "2018-06-20 15:52:20"
         },
         {
             "name": "google/apiclient-services",
-            "version": "v0.67",
+            "version": "v0.68",
             "source": {
                 "type": "git",
                 "url": "https://github.com/google/google-api-php-client-services.git",
-                "reference": "32f65995935033e40cc94d4f484905b38eb039f8"
+                "reference": "f218f5697aa753fa031a09a14ed56a5a438070e4"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/google/google-api-php-client-services/zipball/32f65995935033e40cc94d4f484905b38eb039f8",
-                "reference": "32f65995935033e40cc94d4f484905b38eb039f8",
+                "url": "https://api.github.com/repos/google/google-api-php-client-services/zipball/f218f5697aa753fa031a09a14ed56a5a438070e4",
+                "reference": "f218f5697aa753fa031a09a14ed56a5a438070e4",
                 "shasum": ""
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             "require": {
@@ -916,7 +965,7 @@
             "keywords": [
                 "google"
             ],
-            "time": "2018-08-25T00:23:06+00:00"
+            "time": "2018-09-03 00:22:49"
         },
         {
             "name": "google/auth",
@@ -963,7 +1012,7 @@
                 "google",
                 "oauth2"
             ],
-            "time": "2018-08-27T19:47:35+00:00"
+            "time": "2018-08-27 19:47:35"
         },
         {
             "name": "guzzlehttp/guzzle",
@@ -1028,7 +1077,7 @@
                 "rest",
                 "web service"
             ],
-            "time": "2018-04-22T15:46:56+00:00"
+            "time": "2018-04-22 15:46:56"
         },
         {
             "name": "guzzlehttp/promises",
@@ -1079,7 +1128,7 @@
             "keywords": [
                 "promise"
             ],
-            "time": "2016-12-20T10:07:11+00:00"
+            "time": "2016-12-20 10:07:11"
         },
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             "name": "guzzlehttp/psr7",
@@ -1144,7 +1193,7 @@
                 "uri",
                 "url"
             ],
-            "time": "2017-03-20T17:10:46+00:00"
+            "time": "2017-03-20 17:10:46"
         },
         {
             "name": "hiqdev/yii2-asset-icheck",
@@ -1216,7 +1265,7 @@
                 "iCheck",
                 "yii2"
             ],
-            "time": "2016-03-30T10:59:26+00:00"
+            "time": "2016-03-30 10:59:26"
         },
         {
             "name": "hiqdev/yii2-asset-pnotify",
@@ -1278,7 +1327,7 @@
                 "pnotify",
                 "yii2"
             ],
-            "time": "2015-09-09T15:16:38+00:00"
+            "time": "2015-09-09 15:16:38"
         },
         {
             "name": "imagine/imagine",
@@ -1336,7 +1385,7 @@
                 "image manipulation",
                 "image processing"
             ],
-            "time": "2017-05-16T10:31:22+00:00"
+            "time": "2017-05-16 10:31:22"
         },
         {
             "name": "intervention/httpauth",
@@ -1389,7 +1438,7 @@
                 "http",
                 "laravel"
             ],
-            "time": "2017-06-28T17:37:25+00:00"
+            "time": "2017-06-28 17:37:25"
         },
         {
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@@ -1442,7 +1491,7 @@
                 "progress",
                 "upload"
             ],
-            "time": "2018-08-30T02:05:20+00:00"
+            "time": "2018-08-30 02:05:20"
         },
         {
             "name": "kartik-v/yii2-krajee-base",
@@ -1493,7 +1542,7 @@
                 "widget",
                 "yii2"
             ],
-            "time": "2018-08-29T02:57:02+00:00"
+            "time": "2018-08-29 02:57:02"
         },
         {
             "name": "kartik-v/yii2-widget-colorinput",
@@ -1547,7 +1596,7 @@
                 "widget",
                 "yii2"
             ],
-            "time": "2016-01-14T11:15:49+00:00"
+            "time": "2016-01-14 11:15:49"
         },
         {
             "name": "kartik-v/yii2-widget-datepicker",
@@ -1601,7 +1650,7 @@
                 "widget",
                 "yii2"
             ],
-            "time": "2018-08-29T12:10:45+00:00"
+            "time": "2018-08-29 12:10:45"
         },
         {
             "name": "kartik-v/yii2-widget-fileinput",
@@ -1656,7 +1705,7 @@
                 "widget",
                 "yii2"
             ],
-            "time": "2017-05-25T20:12:30+00:00"
+            "time": "2017-05-25 20:12:30"
         },
         {
             "name": "kartik-v/yii2-widget-select2",
@@ -1709,7 +1758,59 @@
                 "widget",
                 "yii2"
             ],
-            "time": "2018-08-17T07:47:43+00:00"
+            "time": "2018-08-17 07:47:43"
+        },
+        {
+            "name": "mobiledetect/mobiledetectlib",
+            "version": "2.8.33",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/serbanghita/Mobile-Detect.git",
+                "reference": "cd385290f9a0d609d2eddd165a1e44ec1bf12102"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/serbanghita/Mobile-Detect/zipball/cd385290f9a0d609d2eddd165a1e44ec1bf12102",
+                "reference": "cd385290f9a0d609d2eddd165a1e44ec1bf12102",
+                "shasum": ""
+            },
+            "require": {
+                "php": ">=5.0.0"
+            },
+            "require-dev": {
+                "phpunit/phpunit": "~4.8.35||~5.7"
+            },
+            "type": "library",
+            "autoload": {
+                "classmap": [
+                    "Mobile_Detect.php"
+                ],
+                "psr-0": {
+                    "Detection": "namespaced/"
+                }
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "authors": [
+                {
+                    "name": "Serban Ghita",
+                    "email": "serbanghita@gmail.com",
+                    "homepage": "http://mobiledetect.net",
+                    "role": "Developer"
+                }
+            ],
+            "description": "Mobile_Detect is a lightweight PHP class for detecting mobile devices. It uses the User-Agent string combined with specific HTTP headers to detect the mobile environment.",
+            "homepage": "https://github.com/serbanghita/Mobile-Detect",
+            "keywords": [
+                "detect mobile devices",
+                "mobile",
+                "mobile detect",
+                "mobile detector",
+                "php mobile detect"
+            ],
+            "time": "2018-09-01 15:05:15"
         },
         {
             "name": "monolog/monolog",
@@ -1787,7 +1888,7 @@
                 "logging",
                 "psr-3"
             ],
-            "time": "2017-06-19T01:22:40+00:00"
+            "time": "2017-06-19 01:22:40"
         },
         {
             "name": "mrclay/jsmin-php",
@@ -1839,7 +1940,7 @@
                 "jsmin",
                 "minify"
             ],
-            "time": "2015-03-30T15:04:42+00:00"
+            "time": "2015-03-30 15:04:42"
         },
         {
             "name": "mrclay/minify",
@@ -1901,7 +2002,7 @@
             ],
             "description": "Minify is a PHP5 app that helps you follow several rules for client-side performance. It combines multiple CSS or Javascript files, removes unnecessary whitespace and comments, and serves them with gzip encoding and optimal client-side cache headers",
             "homepage": "https://github.com/mrclay/minify",
-            "time": "2017-11-03T21:00:15+00:00"
+            "time": "2017-11-03 21:00:15"
         },
         {
             "name": "mrclay/props-dic",
@@ -1953,7 +2054,7 @@
                 "di",
                 "di container"
             ],
-            "time": "2016-02-10T18:59:20+00:00"
+            "time": "2016-02-10 18:59:20"
         },
         {
             "name": "natxet/CssMin",
@@ -2000,7 +2101,7 @@
                 "css",
                 "minify"
             ],
-            "time": "2018-01-09T11:15:01+00:00"
+            "time": "2018-01-09 11:15:01"
         },
         {
             "name": "noam148/yii2-image-manager",
@@ -2049,7 +2150,7 @@
                 "widget",
                 "yii2"
             ],
-            "time": "2018-06-08T17:29:40+00:00"
+            "time": "2018-06-08 17:29:40"
         },
         {
             "name": "noam148/yii2-image-resize",
@@ -2095,7 +2196,7 @@
                 "resize",
                 "yii2"
             ],
-            "time": "2018-02-18T19:23:04+00:00"
+            "time": "2018-02-18 19:23:04"
         },
         {
             "name": "phpseclib/phpseclib",
@@ -2187,7 +2288,7 @@
                 "x.509",
                 "x509"
             ],
-            "time": "2018-04-15T16:55:05+00:00"
+            "time": "2018-04-15 16:55:05"
         },
         {
             "name": "pimple/pimple",
@@ -2237,7 +2338,7 @@
                 "container",
                 "dependency injection"
             ],
-            "time": "2018-01-21T07:42:36+00:00"
+            "time": "2018-01-21 07:42:36"
         },
         {
             "name": "psr/cache",
@@ -2283,7 +2384,7 @@
                 "psr",
                 "psr-6"
             ],
-            "time": "2016-08-06T20:24:11+00:00"
+            "time": "2016-08-06 20:24:11"
         },
         {
             "name": "psr/container",
@@ -2332,7 +2433,7 @@
                 "container-interop",
                 "psr"
             ],
-            "time": "2017-02-14T16:28:37+00:00"
+            "time": "2017-02-14 16:28:37"
         },
         {
             "name": "psr/http-message",
@@ -2382,7 +2483,7 @@
                 "request",
                 "response"
             ],
-            "time": "2016-08-06T14:39:51+00:00"
+            "time": "2016-08-06 14:39:51"
         },
         {
             "name": "psr/log",
@@ -2429,7 +2530,7 @@
                 "psr",
                 "psr-3"
             ],
-            "time": "2016-10-10T12:19:37+00:00"
+            "time": "2016-10-10 12:19:37"
         },
         {
             "name": "rmrevin/yii2-fontawesome",
@@ -2481,7 +2582,7 @@
                 "font",
                 "yii"
             ],
-            "time": "2017-01-11T14:05:47+00:00"
+            "time": "2017-01-11 14:05:47"
         },
         {
             "name": "skeeks/yii2-assets-auto-compress",
@@ -2538,7 +2639,7 @@
                 "skeeks",
                 "yii"
             ],
-            "time": "2018-06-07T10:04:05+00:00"
+            "time": "2018-06-07 10:04:05"
         },
         {
             "name": "swiftmailer/swiftmailer",
@@ -2597,7 +2698,7 @@
                 "mail",
                 "mailer"
             ],
-            "time": "2018-07-13T07:04:35+00:00"
+            "time": "2018-07-13 07:04:35"
         },
         {
             "name": "tedivm/jshrink",
@@ -2643,7 +2744,7 @@
                 "javascript",
                 "minifier"
             ],
-            "time": "2017-12-08T00:59:56+00:00"
+            "time": "2017-12-08 00:59:56"
         },
         {
             "name": "tinymce/tinymce",
@@ -2689,7 +2790,7 @@
                 "tinymce",
                 "wysiwyg"
             ],
-            "time": "2018-08-09T09:17:07+00:00"
+            "time": "2018-08-09 09:17:07"
         },
         {
             "name": "tubalmartin/cssmin",
@@ -2742,7 +2843,7 @@
                 "minify",
                 "yui"
             ],
-            "time": "2018-01-15T15:26:51+00:00"
+            "time": "2018-01-15 15:26:51"
         },
         {
             "name": "yii2tech/ar-linkmany",
@@ -2793,7 +2894,7 @@
                 "relaton",
                 "yii2"
             ],
-            "time": "2018-02-09T14:02:04+00:00"
+            "time": "2018-02-09 14:02:04"
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             "name": "yii2tech/ar-position",
@@ -2842,7 +2943,7 @@
                 "sort",
                 "yii2"
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-            "time": "2017-11-01T10:56:01+00:00"
+            "time": "2017-11-01 10:56:01"
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@@ -2896,7 +2997,7 @@
                 "variator",
                 "yii2"
             ],
-            "time": "2018-04-09T08:43:38+00:00"
+            "time": "2018-04-09 08:43:38"
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         {
             "name": "yii2tech/filedb",
@@ -2944,7 +3045,7 @@
                 "static",
                 "yii2"
             ],
-            "time": "2018-04-09T08:12:49+00:00"
+            "time": "2018-04-09 08:12:49"
         },
         {
             "name": "yiisoft/yii2",
@@ -3044,7 +3145,7 @@
                 "framework",
                 "yii2"
             ],
-            "time": "2018-03-21T18:36:53+00:00"
+            "time": "2018-03-21 18:36:53"
         },
         {
             "name": "yiisoft/yii2-bootstrap",
@@ -3104,7 +3205,7 @@
                 "bootstrap",
                 "yii2"
             ],
-            "time": "2018-02-16T10:41:52+00:00"
+            "time": "2018-02-16 10:41:52"
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             "name": "yiisoft/yii2-composer",
@@ -3158,7 +3259,7 @@
                 "extension installer",
                 "yii2"
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-            "time": "2018-07-05T15:44:47+00:00"
+            "time": "2018-07-05 15:44:47"
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@@ -3205,7 +3306,7 @@
                 "httpclient",
                 "yii2"
             ],
-            "time": "2018-02-13T15:11:30+00:00"
+            "time": "2018-02-13 15:11:30"
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         {
             "name": "yiisoft/yii2-imagine",
@@ -3253,7 +3354,7 @@
                 "imagine",
                 "yii2"
             ],
-            "time": "2018-02-22T11:57:06+00:00"
+            "time": "2018-02-22 11:57:06"
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         {
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@@ -3299,7 +3400,7 @@
                 "jQuery UI",
                 "yii2"
             ],
-            "time": "2017-11-25T15:32:29+00:00"
+            "time": "2017-11-25 15:32:29"
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         {
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@@ -3349,7 +3450,7 @@
                 "swiftmailer",
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             ],
-            "time": "2018-04-24T23:17:42+00:00"
+            "time": "2018-04-24 23:17:42"
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@@ -3407,7 +3508,7 @@
                 "theme",
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-            "time": "2017-11-12T16:49:22+00:00"
+            "time": "2017-11-12 16:49:22"
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@@ -3468,7 +3569,7 @@
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-            "time": "2017-08-30T11:04:43+00:00"
+            "time": "2017-08-30 11:04:43"
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@@ -3576,7 +3677,7 @@
                 "functional testing",
                 "unit testing"
             ],
-            "time": "2018-08-01T07:46:24+00:00"
+            "time": "2018-08-01 07:46:24"
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@@ -3619,7 +3720,7 @@
                 }
             ],
             "description": "PHPUnit classes used by Codeception",
-            "time": "2018-08-28T23:24:24+00:00"
+            "time": "2018-08-28 23:24:24"
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         {
             "name": "codeception/stub",
@@ -3649,7 +3750,7 @@
                 "MIT"
             ],
             "description": "Flexible Stub wrapper for PHPUnit's Mock Builder",
-            "time": "2018-07-26T11:55:37+00:00"
+            "time": "2018-07-26 11:55:37"
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         {
             "name": "codeception/verify",
@@ -3685,7 +3786,7 @@
                 }
             ],
             "description": "BDD assertion library for PHPUnit",
-            "time": "2017-01-09T10:58:51+00:00"
+            "time": "2017-01-09 10:58:51"
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@@ -3739,7 +3840,7 @@
                 "constructor",
                 "instantiate"
             ],
-            "time": "2017-07-22T11:58:36+00:00"
+            "time": "2017-07-22 11:58:36"
         },
         {
             "name": "fzaninotto/faker",
@@ -3789,7 +3890,7 @@
                 "faker",
                 "fixtures"
             ],
-            "time": "2018-07-12T10:23:15+00:00"
+            "time": "2018-07-12 10:23:15"
         },
         {
             "name": "myclabs/deep-copy",
@@ -3837,7 +3938,7 @@
                 "object",
                 "object graph"
             ],
-            "time": "2018-06-11T23:09:50+00:00"
+            "time": "2018-06-11 23:09:50"
         },
         {
             "name": "phar-io/manifest",
@@ -3892,7 +3993,7 @@
                 }
             ],
             "description": "Component for reading phar.io manifest information from a PHP Archive (PHAR)",
-            "time": "2018-07-08T19:23:20+00:00"
+            "time": "2018-07-08 19:23:20"
         },
         {
             "name": "phar-io/version",
@@ -3939,7 +4040,7 @@
                 }
             ],
             "description": "Library for handling version information and constraints",
-            "time": "2018-07-08T19:19:57+00:00"
+            "time": "2018-07-08 19:19:57"
         },
         {
             "name": "phpdocumentor/reflection-common",
@@ -3993,7 +4094,7 @@
                 "reflection",
                 "static analysis"
             ],
-            "time": "2017-09-11T18:02:19+00:00"
+            "time": "2017-09-11 18:02:19"
         },
         {
             "name": "phpdocumentor/reflection-docblock",
@@ -4044,7 +4145,7 @@
                 }
             ],
             "description": "With this component, a library can provide support for annotations via DocBlocks or otherwise retrieve information that is embedded in a DocBlock.",
-            "time": "2017-11-30T07:14:17+00:00"
+            "time": "2017-11-30 07:14:17"
         },
         {
             "name": "phpdocumentor/type-resolver",
@@ -4091,7 +4192,7 @@
                     "email": "me@mikevanriel.com"
                 }
             ],
-            "time": "2017-07-14T14:27:02+00:00"
+            "time": "2017-07-14 14:27:02"
         },
         {
             "name": "phpspec/php-diff",
@@ -4129,7 +4230,7 @@
                 }
             ],
             "description": "A comprehensive library for generating differences between two hashable objects (strings or arrays).",
-            "time": "2016-04-07T12:29:16+00:00"
+            "time": "2016-04-07 12:29:16"
         },
         {
             "name": "phpspec/prophecy",
@@ -4192,7 +4293,7 @@
                 "spy",
                 "stub"
             ],
-            "time": "2018-08-05T17:53:17+00:00"
+            "time": "2018-08-05 17:53:17"
         },
         {
             "name": "phpunit/php-code-coverage",
@@ -4255,7 +4356,7 @@
                 "testing",
                 "xunit"
             ],
-            "time": "2018-06-01T07:51:50+00:00"
+            "time": "2018-06-01 07:51:50"
         },
         {
             "name": "phpunit/php-file-iterator",
@@ -4302,7 +4403,7 @@
                 "filesystem",
                 "iterator"
             ],
-            "time": "2018-06-11T11:44:00+00:00"
+            "time": "2018-06-11 11:44:00"
         },
         {
             "name": "phpunit/php-text-template",
@@ -4343,7 +4444,7 @@
             "keywords": [
                 "template"
             ],
-            "time": "2015-06-21T13:50:34+00:00"
+            "time": "2015-06-21 13:50:34"
         },
         {
             "name": "phpunit/php-timer",
@@ -4392,7 +4493,7 @@
             "keywords": [
                 "timer"
             ],
-            "time": "2018-02-01T13:07:23+00:00"
+            "time": "2018-02-01 13:07:23"
         },
         {
             "name": "phpunit/php-token-stream",
@@ -4441,20 +4542,20 @@
             "keywords": [
                 "tokenizer"
             ],
-            "time": "2018-02-01T13:16:43+00:00"
+            "time": "2018-02-01 13:16:43"
         },
         {
             "name": "phpunit/phpunit",
-            "version": "7.3.2",
+            "version": "7.3.3",
             "source": {
                 "type": "git",
                 "url": "https://github.com/sebastianbergmann/phpunit.git",
-                "reference": "34705f81bddc3f505b9599a2ef96e2b4315ba9b8"
+                "reference": "1bd5629cccfb2c0a9ef5474b4ff772349e1ec898"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/sebastianbergmann/phpunit/zipball/34705f81bddc3f505b9599a2ef96e2b4315ba9b8",
-                "reference": "34705f81bddc3f505b9599a2ef96e2b4315ba9b8",
+                "url": "https://api.github.com/repos/sebastianbergmann/phpunit/zipball/1bd5629cccfb2c0a9ef5474b4ff772349e1ec898",
+                "reference": "1bd5629cccfb2c0a9ef5474b4ff772349e1ec898",
                 "shasum": ""
             },
             "require": {
@@ -4525,7 +4626,7 @@
                 "testing",
                 "xunit"
             ],
-            "time": "2018-08-22T06:39:21+00:00"
+            "time": "2018-09-01 15:49:55"
         },
         {
             "name": "sebastian/code-unit-reverse-lookup",
@@ -4570,7 +4671,7 @@
             ],
             "description": "Looks up which function or method a line of code belongs to",
             "homepage": "https://github.com/sebastianbergmann/code-unit-reverse-lookup/",
-            "time": "2017-03-04T06:30:41+00:00"
+            "time": "2017-03-04 06:30:41"
         },
         {
             "name": "sebastian/comparator",
@@ -4634,7 +4735,7 @@
                 "compare",
                 "equality"
             ],
-            "time": "2018-07-12T15:12:46+00:00"
+            "time": "2018-07-12 15:12:46"
         },
         {
             "name": "sebastian/diff",
@@ -4690,7 +4791,7 @@
                 "unidiff",
                 "unified diff"
             ],
-            "time": "2018-06-10T07:54:39+00:00"
+            "time": "2018-06-10 07:54:39"
         },
         {
             "name": "sebastian/environment",
@@ -4740,7 +4841,7 @@
                 "environment",
                 "hhvm"
             ],
-            "time": "2017-07-01T08:51:00+00:00"
+            "time": "2017-07-01 08:51:00"
         },
         {
             "name": "sebastian/exporter",
@@ -4807,7 +4908,7 @@
                 "export",
                 "exporter"
             ],
-            "time": "2017-04-03T13:19:02+00:00"
+            "time": "2017-04-03 13:19:02"
         },
         {
             "name": "sebastian/global-state",
@@ -4858,7 +4959,7 @@
             "keywords": [
                 "global state"
             ],
-            "time": "2017-04-27T15:39:26+00:00"
+            "time": "2017-04-27 15:39:26"
         },
         {
             "name": "sebastian/object-enumerator",
@@ -4905,7 +5006,7 @@
             ],
             "description": "Traverses array structures and object graphs to enumerate all referenced objects",
             "homepage": "https://github.com/sebastianbergmann/object-enumerator/",
-            "time": "2017-08-03T12:35:26+00:00"
+            "time": "2017-08-03 12:35:26"
         },
         {
             "name": "sebastian/object-reflector",
@@ -4950,7 +5051,7 @@
             ],
             "description": "Allows reflection of object attributes, including inherited and non-public ones",
             "homepage": "https://github.com/sebastianbergmann/object-reflector/",
-            "time": "2017-03-29T09:07:27+00:00"
+            "time": "2017-03-29 09:07:27"
         },
         {
             "name": "sebastian/recursion-context",
@@ -5003,7 +5104,7 @@
             ],
             "description": "Provides functionality to recursively process PHP variables",
             "homepage": "http://www.github.com/sebastianbergmann/recursion-context",
-            "time": "2017-03-03T06:23:57+00:00"
+            "time": "2017-03-03 06:23:57"
         },
         {
             "name": "sebastian/resource-operations",
@@ -5045,7 +5146,7 @@
             ],
             "description": "Provides a list of PHP built-in functions that operate on resources",
             "homepage": "https://www.github.com/sebastianbergmann/resource-operations",
-            "time": "2015-07-28T20:34:47+00:00"
+            "time": "2015-07-28 20:34:47"
         },
         {
             "name": "sebastian/version",
@@ -5088,7 +5189,7 @@
             ],
             "description": "Library that helps with managing the version number of Git-hosted PHP projects",
             "homepage": "https://github.com/sebastianbergmann/version",
-            "time": "2016-10-03T07:35:21+00:00"
+            "time": "2016-10-03 07:35:21"
         },
         {
             "name": "symfony/browser-kit",
@@ -5145,7 +5246,7 @@
             ],
             "description": "Symfony BrowserKit Component",
             "homepage": "https://symfony.com",
-            "time": "2018-07-26T09:10:45+00:00"
+            "time": "2018-07-26 09:10:45"
         },
         {
             "name": "symfony/console",
@@ -5213,7 +5314,7 @@
             ],
             "description": "Symfony Console Component",
             "homepage": "https://symfony.com",
-            "time": "2018-07-26T11:24:31+00:00"
+            "time": "2018-07-26 11:24:31"
         },
         {
             "name": "symfony/css-selector",
@@ -5266,7 +5367,7 @@
             ],
             "description": "Symfony CssSelector Component",
             "homepage": "https://symfony.com",
-            "time": "2018-07-26T09:10:45+00:00"
+            "time": "2018-07-26 09:10:45"
         },
         {
             "name": "symfony/dom-crawler",
@@ -5323,7 +5424,7 @@
             ],
             "description": "Symfony DomCrawler Component",
             "homepage": "https://symfony.com",
-            "time": "2018-07-26T11:00:49+00:00"
+            "time": "2018-07-26 11:00:49"
         },
         {
             "name": "symfony/event-dispatcher",
@@ -5386,7 +5487,7 @@
             ],
             "description": "Symfony EventDispatcher Component",
             "homepage": "https://symfony.com",
-            "time": "2018-07-26T09:10:45+00:00"
+            "time": "2018-07-26 09:10:45"
         },
         {
             "name": "symfony/finder",
@@ -5435,7 +5536,7 @@
             ],
             "description": "Symfony Finder Component",
             "homepage": "https://symfony.com",
-            "time": "2018-07-26T11:24:31+00:00"
+            "time": "2018-07-26 11:24:31"
         },
         {
             "name": "symfony/polyfill-ctype",
@@ -5493,7 +5594,7 @@
                 "polyfill",
                 "portable"
             ],
-            "time": "2018-08-06T14:22:27+00:00"
+            "time": "2018-08-06 14:22:27"
         },
         {
             "name": "symfony/polyfill-mbstring",
@@ -5552,7 +5653,7 @@
                 "portable",
                 "shim"
             ],
-            "time": "2018-08-06T14:22:27+00:00"
+            "time": "2018-08-06 14:22:27"
         },
         {
             "name": "symfony/yaml",
@@ -5611,7 +5712,7 @@
             ],
             "description": "Symfony Yaml Component",
             "homepage": "https://symfony.com",
-            "time": "2018-08-18T16:52:46+00:00"
+            "time": "2018-08-18 16:52:46"
         },
         {
             "name": "theseer/tokenizer",
@@ -5651,7 +5752,7 @@
                 }
             ],
             "description": "A small library for converting tokenized PHP source code into XML and potentially other formats",
-            "time": "2017-04-07T12:08:54+00:00"
+            "time": "2017-04-07 12:08:54"
         },
         {
             "name": "webmozart/assert",
@@ -5701,7 +5802,7 @@
                 "check",
                 "validate"
             ],
-            "time": "2018-01-29T19:49:41+00:00"
+            "time": "2018-01-29 19:49:41"
         },
         {
             "name": "yiisoft/yii2-debug",
@@ -5748,7 +5849,7 @@
                 "debugger",
                 "yii2"
             ],
-            "time": "2017-12-05T07:36:23+00:00"
+            "time": "2017-12-05 07:36:23"
         },
         {
             "name": "yiisoft/yii2-faker",
@@ -5795,7 +5896,7 @@
                 "faker",
                 "yii2"
             ],
-            "time": "2018-02-19T20:27:10+00:00"
+            "time": "2018-02-19 20:27:10"
         },
         {
             "name": "yiisoft/yii2-gii",
@@ -5848,7 +5949,7 @@
                 "gii",
                 "yii2"
             ],
-            "time": "2018-05-02T22:05:25+00:00"
+            "time": "2018-05-02 22:05:25"
         }
     ],
     "aliases": [],
diff --git a/frontend/config/main.php b/frontend/config/main.php
index 8f278eb..5d912e5 100755
--- a/frontend/config/main.php
+++ b/frontend/config/main.php
@@ -13,7 +13,7 @@
         'id'                  => 'app-frontend',
         'homeUrl'             => '/',
         'basePath'            => dirname(__DIR__),
-        'bootstrap'           => [ 'log' ],
+        'bootstrap'           => [ 'log' ,'devicedetect'],
         'controllerNamespace' => 'frontend\controllers',
         'container' => [
             'singletons' => [
@@ -141,6 +141,10 @@
             ],
         ],
         'components'          => [
+
+		        'devicedetect' => [
+			        'class' => 'alexandernst\devicedetect\DeviceDetect'
+		        ],
             'request'      => [
                 'csrfParam' => '_csrf-frontend',
                 'baseUrl'   => '',
diff --git a/frontend/views/layouts/main.php b/frontend/views/layouts/main.php
index 961e2cf..86c1cd0 100755
--- a/frontend/views/layouts/main.php
+++ b/frontend/views/layouts/main.php
@@ -145,19 +145,26 @@ JS;
                     <?php foreach ($pageCategories as $category){?>
                     <li>
                         <?php
-                        if($category->id==4){
-                           echo Html::a(
-                                   $category->language->title,
-                                   '/pdf/Kyiv_-_EM_and_9th_Forum_-_OverviewHyper_MASTER_07-5_Clean.pdf',
-                                    [ "target" => '_blank',]
 
+                        if($category->id==4){
+                            ?>
 
-                               );
+                            <a href="/pdf/Kyiv_-_EM_and_9th_Forum_-_OverviewHyper_MASTER_07-5_Clean.pdf"
+                            target="_blank"
+                            <?php if(\Yii::$app->devicedetect->isMobile()){
+                                ?>
+                                download
+                                <?php
+                            } ?>
+                            ><?=$category->language->title?></a>
+                            <?php
                         }
                         else
-                            {
-                                echo Html::a($category->language->title,'#');
-                            }
+                            {?>
+                                <a href="#" target="_blank"><?=$category->language->title?></a>
+
+                            <?php
+                                }
                         ?>
 
                         <ul>
--
libgit2 0.21.4