diff --git a/api.php b/api.php
index d281ebf..e922f6c 100644
--- a/api.php
+++ b/api.php
@@ -10,7 +10,6 @@
  * @license  GNU General Public License http://www.gnu.org/licenses/gpl.html
  * @link     http://rudloff.pro
  * */
-$python="/usr/bin/python";
 require_once 'download.php';
 if (isset($_GET["url"])) {
     if (isset($_GET["format"])) {
diff --git a/config.php b/config.php
new file mode 100644
index 0000000..0249c03
--- /dev/null
+++ b/config.php
@@ -0,0 +1,17 @@
+<?php
+/**
+ * PHP web interface for youtube-dl (http://rg3.github.com/youtube-dl/)
+ * Config file
+ *
+ * PHP Version 5.3.10
+ *
+ * @category Youtube-dl
+ * @package  Youtubedl
+ * @author   Pierre Rudloff <rudloff@strasweb.fr>
+ * @license  GNU General Public License http://www.gnu.org/licenses/gpl.html
+ * @link     http://rudloff.pro
+ * */
+define('YOUTUBE_DL', './youtube-dl');
+define('PYTHON', '/usr/bin/python');
+define('PARAMS', '--no-playlist --no-warnings');
+?>
diff --git a/download.php b/download.php
index ab2f177..746c229 100644
--- a/download.php
+++ b/download.php
@@ -11,7 +11,7 @@
  * @license  GNU General Public License http://www.gnu.org/licenses/gpl.html
  * @link     http://rudloff.pro
  * */
- 
+require_once 'config.php';
 /**
  * PHP web interface for youtube-dl (http://rg3.github.com/youtube-dl/)
  * Main class
@@ -26,9 +26,6 @@
  * */
 Class VideoDownload
 {
-    static private $_python="/usr/bin/python";
-    static private $_params="--no-playlist";
-    
     /**
      * Get version of youtube-dl
      * 
@@ -37,7 +34,7 @@ Class VideoDownload
     function getVersion ()
     {
         exec(
-            VideoDownload::$_python.' youtube-dl --version',
+            PYTHON.' '.YOUTUBE_DL.' --version',
             $version, $code
         );
         return $version[0];
@@ -50,7 +47,7 @@ Class VideoDownload
     function getUA ()
     {
         exec(
-            VideoDownload::$_python.' youtube-dl --dump-user-agent',
+            PYTHON.' '.YOUTUBE_DL.' --dump-user-agent',
             $version, $code
         );
         return $version[0];
@@ -64,7 +61,7 @@ Class VideoDownload
     function listExtractors ()
     {
         exec(
-            VideoDownload::$_python.' youtube-dl --list-extractors',
+            PYTHON.' '.YOUTUBE_DL.' --list-extractors',
             $extractors, $code
         );
         return $extractors;
@@ -80,7 +77,7 @@ Class VideoDownload
      * */
     function getFilename ($url, $format=null)
     {
-        $cmd=VideoDownload::$_python.' youtube-dl';
+        $cmd=PYTHON.' youtube-dl';
         if (isset($format)) {
             $cmd .= ' -f '.escapeshellarg($format);
         }
@@ -102,7 +99,7 @@ Class VideoDownload
     function getTitle ($url)
     {
         exec(
-            VideoDownload::$_python.' youtube-dl --get-title '.
+            PYTHON.' '.YOUTUBE_DL.' --get-title '.
             escapeshellarg($url),
             $title
         );
@@ -120,11 +117,11 @@ Class VideoDownload
      * */
     function getJSON ($url, $format=null)
     {
-        $cmd=VideoDownload::$_python.' youtube-dl '.VideoDownload::$_params;
+        $cmd=PYTHON.' '.YOUTUBE_DL.' '.PARAMS;
         if (isset($format)) {
             $cmd .= ' -f '.escapeshellarg($format);
         }
-        $cmd .=' --no-warnings --dump-json '.escapeshellarg($url)." 2>&1";
+        $cmd .=' --dump-json '.escapeshellarg($url)." 2>&1";
         exec(
             $cmd,
             $json, $code
@@ -146,7 +143,7 @@ Class VideoDownload
     function getThumbnail ($url)
     {
         exec(
-            VideoDownload::$_python.' youtube-dl --get-thumbnail '.
+            PYTHON.' '.YOUTUBE_DL.' --get-thumbnail '.
             escapeshellarg($url),
             $thumb
         );
@@ -165,7 +162,7 @@ Class VideoDownload
     function getAvailableFormats ($url)
     {
         exec(
-            VideoDownload::$_python.' youtube-dl -F '.
+            PYTHON.' '.YOUTUBE_DL.' -F '.
             escapeshellarg($url),
             $formats
         );
@@ -195,7 +192,7 @@ Class VideoDownload
      * */
     function getURL ($url, $format=null)
     {
-        $cmd=VideoDownload::$_python.' youtube-dl';
+        $cmd=PYTHON.' '.YOUTUBE_DL;
         if (isset($format)) {
             $cmd .= ' -f '.escapeshellarg($format);
         }
diff --git a/img/logo_250.png b/img/logo_250.png
new file mode 100644
index 0000000..c509c56
Binary files /dev/null and b/img/logo_250.png differ
diff --git a/json.php b/json.php
index 36e1617..fd81816 100644
--- a/json.php
+++ b/json.php
@@ -1,6 +1,16 @@
 <?php
-
-$python="/usr/bin/python";
+/**
+ * PHP web interface for youtube-dl (http://rg3.github.com/youtube-dl/)
+ * JSON API
+ *
+ * PHP Version 5.3.10
+ *
+ * @category Youtube-dl
+ * @package  Youtubedl
+ * @author   Pierre Rudloff <rudloff@strasweb.fr>
+ * @license  GNU General Public License http://www.gnu.org/licenses/gpl.html
+ * @link     http://rudloff.pro
+ * */
 require_once 'download.php';
 if (isset($_GET["url"])) {
     header('Content-Type: application/json');
diff --git a/manifest.webapp b/manifest.webapp
index a139719..517c21b 100644
--- a/manifest.webapp
+++ b/manifest.webapp
@@ -9,7 +9,8 @@
         "32": "/img/favicon.png",
         "60": "/img/logo_60.png",
         "90": "/img/logo_90.png",
-        "243": "/img/logo_app.png"
+        "243": "/img/logo_app.png",
+        "250": "/img/logo_250.png"
     },
     "default_locale": "en",
     "launch_path": "/index.php"