diff --git a/bin/thumb_server.sh b/bin/thumb_server.sh
index 6d76c82..fb5f5f9 100755
--- a/bin/thumb_server.sh
+++ b/bin/thumb_server.sh
@@ -6,10 +6,11 @@
 site=$1 # url for thumbshot
 hashUrl=$2 # hash(url) is the name of final image 
 thumbSize=$3 # size of thumb widthxheight ex : 190x90
-onlyThumb=$4 # make only thumbshot no full size image 
-waitForResult=$5 # if true we try to make soon as possible or add to queue
+sizeNameDir=$4 # name of size dir
+onlyThumb=$5 # make only thumbshot no full size image 
+waitForResult=$6 # if true we try to make soon as possible or add to queue
 maxThread=1 # max parralle work. For me the best is nb core - 1
-timeOut=60 # default time out after this time the site are declared in error
+timeOut=60 # default time out, after this time the site are declared in error
 log=false # log all generation success and error
 randomSleep=`echo $((RANDOM%20))`
 optimizeTool='' # external tool form optimize png
@@ -17,7 +18,8 @@ maxQueue=50 # max process in queue
 currentProcess=$(ps -e | grep -v grep | grep thumb_ | wc -l)
 firstLevel=${hashUrl:0:2}
 secondLevel=${hashUrl:2:2}
-startPath=$firstLevel/$secondLevel/
+startPath=$sizeNameDir/$firstLevel/$secondLevel/
+
 mkdir -p "cache/img/$startPath"
 
 if [ -f "cache/config/serverOptions.php" ]
diff --git a/inc/style.css b/inc/style.css
index 0db9793..024e378 100644
--- a/inc/style.css
+++ b/inc/style.css
@@ -6,7 +6,7 @@ html {
   background-color: #dedede;
 }
 
-form, #result{
+form, #result, #header{
   padding: 1em;
   text-align: center;
   width: 50%;
@@ -43,7 +43,7 @@ form .info {
  font-size : 0.8em;
 }
 
-#result {
+#result, #header {
   text-align: center;
   padding: 1em;
   margin: 1em auto;
diff --git a/index.php b/index.php
index bb66679..bce7ebf 100644
--- a/index.php
+++ b/index.php
@@ -2,24 +2,32 @@
 if (empty($_SESSION)) {
   session_start();
 }
-date_default_timezone_set('Europe/Paris');
 // change if you want no inpact
-$GLOBALS['config']['onlyLocalServer'] = false;
+date_default_timezone_set('Europe/Paris');
 // soshot only accept request by 127.0.0.1
-$GLOBALS['config']['NoWebPage'] = false;
+$GLOBALS['config']['onlyLocalServer'] = false;
 // No form for post url only acces by GET method
-$GLOBALS['config']['maxErrorBeforeBan'] = 3;
+$GLOBALS['config']['NoWebPage'] = false;
 // After 3 criticla error ban user
-$GLOBALS['config']['banTime'] = 60;
+$GLOBALS['config']['maxErrorBeforeBan'] = 3;
 // Ban for 60 minutes
-$GLOBALS['config']['defaultUrl'] = 'https://google.com';
+$GLOBALS['config']['banTime'] = 60;
 // default url for form
-$GLOBALS['config']['defaultThumbSize'] = '120x90';
+$GLOBALS['config']['defaultUrl'] = 'https://google.com';
 // default size for thumbnail
-$GLOBALS['config']['onlyThumb'] = TRUE;
+$GLOBALS['config']['defaultThumbSize'] = '120x90';
 // generate only thumbnail or generate thumbnail + 1280x1024 image
-$GLOBALS['config']['thumbSize'] = array('s' => '120x90', 'm' => '200x160', 'l' => '300x240', 'xl' => '400x320', 'xxl' => '500x400');
+$GLOBALS['config']['onlyThumb'] = TRUE;
 // list of available size for thumb
+$GLOBALS['config']['thumbSize'] = array(
+  's' => '120x90',
+  'm' => '200x160',
+  'l' => '300x240',
+  'xl' => '400x320',
+  'xxl' => '500x400'
+);
+// Remove image older than 12 hours
+$GLOBALS['config']['expireCache'] = 12;
 
 if (!file_exists('cache/config/genConf.php')) {
   install();
@@ -55,13 +63,13 @@ if (get_magic_quotes_gpc()) {
 
 function testExistImg($file) {
   if ($GLOBALS['config']['onlyThumb'] === true) {
-    if (file_exists($file . '_thumb.png')) {
+    if (file_exists($file.'_thumb.png')) {
       return true;
     } else {
       return false;
     }
   } else {
-    if (file_exists($file . '_thumb.png') && file_exists($file . '.png')) {
+    if (file_exists($file.'_thumb.png') && file_exists($file.'.png')) {
       return true;
     } else {
       return false;
@@ -75,13 +83,13 @@ function testExistImg($file) {
  * @author Knah Tsaeb
  * @date 2013-02-12
  * @param $url (string) url for thumbshot
- * @param   $hashUrl (md5) md5($url)
+ * @param $hashUrl (md5) md5($url)
  * @param $width (string) size of thumbnail 190x90
  * @param $onlyThumb (bool)
  * @param $waiForResult (bool)
  * @return
  */
-function launchScript($url, $hashUrl, $width, $onlyThumb, $waitForResult = false) {
+function launchScript($url, $hashUrl, $width, $size, $onlyThumb, $waitForResult = false) {
   $hashUrl = escapeshellarg($hashUrl);
   $url = escapeshellarg($url);
   $width = escapeshellarg($width);
@@ -92,17 +100,21 @@ function launchScript($url, $hashUrl, $width, $onlyThumb, $waitForResult = false
   }
 
   if ($waitForResult === false) {
-    exec('bin/thumb_server.sh ' . $url . ' ' . $hashUrl . ' ' . $width . ' ' . $onlyThumb . ' > /dev/null &', $result);
+    exec('bin/thumb_server.sh '.$url.' '.$hashUrl.' '.$width.' '.$size.' '.$onlyThumb.' > /dev/null &', $result);
   } else {
-    exec('bin/thumb_server.sh ' . $url . ' ' . $hashUrl . ' ' . $width . ' ' . $onlyThumb . ' 1', $result);
+    exec('bin/thumb_server.sh '.$url.' '.$hashUrl.' '.$width.' '.$size.' '.$onlyThumb.' 1', $result);
   }
   return $result;
 }
 
 function testValidUrl($url) {
+  $url = trim($url);
   if (filter_var($url, FILTER_VALIDATE_URL, FILTER_FLAG_SCHEME_REQUIRED | FILTER_FLAG_HOST_REQUIRED)) {
     $url = parse_url($url);
-    if (!in_array($url['scheme'], array('http', 'https'))) {
+    if (!in_array($url['scheme'], array(
+      'http',
+      'https'
+    ))) {
       return array('msg' => 'Url must be start by http or https.');
     }
     return true;
@@ -112,7 +124,7 @@ function testValidUrl($url) {
 }
 
 function genToken() {
-  $token = sha1(uniqid(rand(), true) . '_' . mt_rand());
+  $token = sha1(uniqid(rand(), true).'_'.mt_rand());
   $_SESSION['token'] = $token;
   return $token;
 }
@@ -147,14 +159,14 @@ function ban() {
     $banList[$userIp]['lastBan'] = time();
     $banList[$userIp]['nbBan'] = 1;
   }
-  file_put_contents('cache/logs/banUser.php', "<?php\n\$banList=" . var_export($banList, true) . ";\n?>");
+  file_put_contents('cache/logs/banUser.php', "<?php\n\$banList=".var_export($banList, true).";\n?>");
 }
 
 function unBan() {
   require 'cache/logs/banUser.php';
   $userIp = $_SERVER['REMOTE_ADDR'];
   unset($banList[$userIp]);
-  file_put_contents('cache/logs/banUser.php', "<?php\n\$banList=" . var_export($banList, true) . ";\n?>");
+  file_put_contents('cache/logs/banUser.php', "<?php\n\$banList=".var_export($banList, true).";\n?>");
 }
 
 function install() {
@@ -173,9 +185,9 @@ function install() {
   if (!mkdir('cache/tmp', 0705)) {
     die('Error on create dir "cache/tmp".');
   }
-  $salt = sha1(uniqid(rand(), true) . '_' . mt_rand());
-  $serverKey = substr(sha1(uniqid(rand(), true) . '_' . mt_rand() . $salt), 0, 12);
-  $encryptServerKey = sha1($serverKey . $salt);
+  $salt = sha1(uniqid(rand(), true).'_'.mt_rand());
+  $serverKey = substr(sha1(uniqid(rand(), true).'_'.mt_rand().$salt), 0, 12);
+  $encryptServerKey = sha1($serverKey.$salt);
 
   if (!is_file('cache/config/genConf.php')) {
     file_put_contents('cache/config/genConf.php', "<?php\n\$GLOBALS['config']['serverKey'] = '$encryptServerKey';\n\$GLOBALS['config']['salt'] = '$salt';\n?>");
@@ -192,7 +204,13 @@ function install() {
   if (!is_file('cache/logs/log.txt')) {
     touch('cache/logs/log.txt');
   }
-  echo '<div>This is the key for generate thumbnail whith GET method. Save it, this key is secret, don\'t share it. <p class="alert">', $serverKey, '</p></div>';
+  echo '
+<div>
+  This is the key for generate thumbnail whith GET method. Save it, this key is secret, don\'t share it.
+  <p class="alert">
+    ', $serverKey, '
+  </p>
+</div>';
   checkInstall();
 }
 
@@ -211,17 +229,39 @@ function checkInstall() {
   }
 }
 
+function removeOlderThan($dir = 'cache/img/shortLived') {
+  if (is_dir($dir)) {
+    $objects = scandir($dir);
+    foreach ($objects as $object) {
+      if ($object !== '.' && $object !== '..' && $object) {
+        if (filetype($dir.'/'.$object) === 'dir') {
+          removeOlderThan($dir.'/'.$object);
+        } else {
+          if(fileatime($dir.'/'.$object) < time() - 3600*$GLOBALS['config']['expireCache']){
+             unlink($dir.'/'.$object);
+          }
+        }
+      }
+    }
+    reset($objects);
+  }
+}
+
 checkInstall();
+removeOlderThan();
 if ($_GET) {
   $ui = $_GET;
   unset($_GET);
   if (empty($ui['key']) || empty($ui['url'])) {
     die('Are you Ken ?');
   }
-  if (sha1($ui['key'] . $GLOBALS['config']['salt']) !== $GLOBALS['config']['serverKey']) {
+  if (sha1($ui['key'].$GLOBALS['config']['salt']) !== $GLOBALS['config']['serverKey']) {
     ban();
     die('I take a chips and give it to Godzilla. I print a shoes and .............. KAMOULOX ! Well done Jean Pierre.');
   }
+  if (!array_key_exists($ui['s'], $GLOBALS['config']['thumbSize'])) {
+    die('Die another day !');
+  }
 
   $ui['url'] = rawurldecode($ui['url']);
   $testUrl = testValidUrl($ui['url']);
@@ -239,15 +279,15 @@ if ($_GET) {
     $width = $GLOBALS['config']['defaultThumbSize'];
   }
 
-  $hashUrl = sha1($GLOBALS['config']['serverKey'] . $defUrl);
-  $startPath = substr($hashUrl, 0, 2) . '/' . substr($hashUrl, 2, 2) . '/';
-  $file = 'cache/img/' . $startPath . $hashUrl;
+  $hashUrl = sha1($GLOBALS['config']['serverKey'].$defUrl);
+  $startPath = substr($hashUrl, 0, 2).'/'.substr($hashUrl, 2, 2).'/';
+  $file = 'cache/img/'.$ui['s'].'/'.$startPath.$hashUrl;
 
   if (testExistImg($file) !== true || isset($ui['fr']) && (int)$ui['fr'] === 1) {
     if (isset($ui['iw']) && (int)$ui['iw'] === 1) {
-      launchScript($defUrl, $hashUrl, $width, $GLOBALS['config']['onlyThumb'], true);
+      launchScript($defUrl, $hashUrl, $width, $ui['s'], $GLOBALS['config']['onlyThumb'], true);
     } else {
-      $res = launchScript($defUrl, $hashUrl, $width, $GLOBALS['config']['onlyThumb'], false);
+      $res = launchScript($defUrl, $hashUrl, $width, $ui['s'], $GLOBALS['config']['onlyThumb'], false);
       header("Content-type: image/png");
       header("Expires: Sat, 26 Jul 1997 05:00:00 GMT");
       echo file_get_contents('bin/loadingGen.png');
@@ -255,11 +295,11 @@ if ($_GET) {
     }
   }
   header("Content-type: image/png");
-  header('Expires: ', gmdate('D, d M Y H:i:s', time()) . ' GMT');
+  header('Expires: ', gmdate('D, d M Y H:i:s', time()).' GMT');
   if (!empty($ui['t']) && $ui['t'] === 'full') {
-    echo file_get_contents($file . '.png');
+    echo file_get_contents($file.'.png');
   } else {
-    echo file_get_contents($file . '_thumb.png');
+    echo file_get_contents($file.'_thumb.png');
   }
   exit();
 }
@@ -280,6 +320,10 @@ if ($_POST) {
     exit();
   }
 
+  if (!array_key_exists($ui['s'], $GLOBALS['config']['thumbSize'])) {
+    die('Die another day !');
+  }
+
   $defUrl = $ui['url'];
 
   if (isset($ui['s']) && array_key_exists($ui['s'], $GLOBALS['config']['thumbSize'])) {
@@ -288,14 +332,17 @@ if ($_POST) {
     $width = $GLOBALS['config']['defaultThumbSize'];
   }
 
-  $hashUrl = sha1($GLOBALS['config']['serverKey'] . $defUrl);
-  $startPath = substr($hashUrl, 0, 2) . '/' . substr($hashUrl, 2, 2) . '/';
-  $file = 'cache/img/' . $startPath . $hashUrl;
+  $hashUrl = sha1($GLOBALS['config']['serverKey'].$defUrl);
+  $startPath = substr($hashUrl, 0, 2).'/'.substr($hashUrl, 2, 2).'/';
+  $file = 'cache/img/shortLived/'.$startPath.$hashUrl;
 
   if (testExistImg($file) !== true || isset($ui['fr']) && (int)$ui['fr'] === 1) {
-    launchScript($defUrl, $hashUrl, $width, $GLOBALS['config']['onlyThumb'], true);
+    launchScript($defUrl, $hashUrl, $width, 'shortLived', $GLOBALS['config']['onlyThumb'], true);
   }
-  $success = array('normal' => $file . '.png', 'thumb' => $file . '_thumb.png');
+  $success = array(
+    'normal' => $file.'.png',
+    'thumb' => $file.'_thumb.png'
+  );
 }
 
 if (empty($defUrl)) {
@@ -347,7 +394,8 @@ if (empty($width)) {
     <?php
     if (!empty($success)) {
       echo '<div id="result">';
-      echo '<img src="', $success['thumb'], '?r=',       time(), '"/>';
+      echo '<h3>This image will removed in 24h</h3>';
+      echo '<img src="', $success['thumb'], '?r=',                   time(), '"/>';
       echo '<p><label>', $width, '</label><input type="text" value="http://', $_SERVER['SERVER_NAME'], '/', $success['thumb'], '" onclick="this.select()"/></p>';
       if ($GLOBALS['config']['onlyThumb'] === false) {
         echo '<p><label>1280x1024</label><input type="text" value="http://', $_SERVER['SERVER_NAME'], '/', $success['normal'], '" onclick="this.select()"/></p>';