diff --git a/tinyfilemanager.php b/tinyfilemanager.php
index ca73f9d..3dfd604 100644
--- a/tinyfilemanager.php
+++ b/tinyfilemanager.php
@@ -274,7 +274,7 @@ defined('FM_SELF_URL') || define('FM_SELF_URL', ($is_https ? 'https' : 'http') .
 // logout
 if (isset($_GET['logout'])) {
     unset($_SESSION[FM_SESSION_ID]['logged']);
-    unset( $_SESSION['token']); 
+    unset( $_SESSION['token']);
     fm_redirect(FM_SELF_URL);
 }
 
@@ -798,7 +798,7 @@ if (isset($_POST['file'], $_POST['copy_to'], $_POST['finish'], $_POST['token'])
     if(!verifyToken($_POST['token'])) {
         fm_set_msg(lng('Invalid Token.'), 'error');
     }
-    
+
     // from
     $path = FM_ROOT_PATH;
     if (FM_PATH != '') {
@@ -1117,9 +1117,9 @@ if (isset($_POST['group'], $_POST['token']) && (isset($_POST['zip']) || isset($_
     foreach($files as $file){
         array_push($sanitized_files, fm_clean_path($file));
     }
-    
+
     $files = $sanitized_files;
-    
+
     if (!empty($files)) {
         chdir($path);
 
@@ -1225,7 +1225,7 @@ if (isset($_POST['chmod'], $_POST['token']) && !FM_READONLY && !FM_IS_WIN) {
     if(!verifyToken($_POST['token'])) {
         fm_set_msg(lng("Invalid Token."), 'error');
     }
-    
+
     $path = FM_ROOT_PATH;
     if (FM_PATH != '') {
         $path .= '/' . FM_PATH;
@@ -1448,7 +1448,7 @@ if (isset($_POST['copy']) && !FM_READONLY) {
                     <p>
                         <b><a href="?p=<?php echo urlencode(FM_PATH) ?>" class="btn btn-outline-danger"><i class="fa fa-times-circle"></i> <?php echo lng('Cancel') ?></a></b>&nbsp;
                         <input type="hidden" name="token" value="<?php echo $_SESSION['token']; ?>">
-                        <button type="submit" class="btn btn-success"><i class="fa fa-check-circle"></i> <?php echo lng('Copy') ?></button> 
+                        <button type="submit" class="btn btn-success"><i class="fa fa-check-circle"></i> <?php echo lng('Copy') ?></button>
                     </p>
                 </form>
             </div>
@@ -1997,7 +1997,7 @@ if (isset($_GET['chmod']) && !FM_READONLY && !FM_IS_WIN) {
                     </table>
 
                     <p>
-                       <input type="hidden" name="token" value="<?php echo $_SESSION['token']; ?>"> 
+                       <input type="hidden" name="token" value="<?php echo $_SESSION['token']; ?>">
                         <b><a href="?p=<?php echo urlencode(FM_PATH) ?>" class="btn btn-outline-primary"><i class="fa fa-times-circle"></i> <?php echo lng('Cancel') ?></a></b>&nbsp;
                         <button type="submit" class="btn btn-success"><i class="fa fa-check-circle"></i> <?php echo lng('Change') ?></button>
                     </p>
@@ -2267,9 +2267,9 @@ function print_external($key) {
  * @param string $token
  * @return bool
  */
-function verifyToken($token) 
+function verifyToken($token)
 {
-    if (hash_equals($_SESSION['token'], $token)) { 
+    if (hash_equals($_SESSION['token'], $token)) {
         return true;
     }
     return false;
@@ -4127,7 +4127,7 @@ $isStickyNavBar = $sticky_navbar ? 'navbar-fixed' : 'navbar-normal';
         $confirmDailog.modal('show');
         return false;
     }
-    
+
 
     // on mouse hover image preview
     !function(s){s.previewImage=function(e){var o=s(document),t=".previewImage",a=s.extend({xOffset:20,yOffset:-20,fadeIn:"fast",css:{padding:"5px",border:"1px solid #cccccc","background-color":"#fff"},eventSelector:"[data-preview-image]",dataKey:"previewImage",overlayId:"preview-image-plugin-overlay"},e);return o.off(t),o.on("mouseover"+t,a.eventSelector,function(e){s("p#"+a.overlayId).remove();var o=s("<p>").attr("id",a.overlayId).css("position","absolute").css("display","none").append(s('<img class="c-preview-img">').attr("src",s(this).data(a.dataKey)));a.css&&o.css(a.css),s("body").append(o),o.css("top",e.pageY+a.yOffset+"px").css("left",e.pageX+a.xOffset+"px").fadeIn(a.fadeIn)}),o.on("mouseout"+t,a.eventSelector,function(){s("#"+a.overlayId).remove()}),o.on("mousemove"+t,a.eventSelector,function(e){s("#"+a.overlayId).css("top",e.pageY+a.yOffset+"px").css("left",e.pageX+a.xOffset+"px")}),this},s.previewImage()}(jQuery);
@@ -4157,7 +4157,7 @@ $isStickyNavBar = $sticky_navbar ? 'navbar-fixed' : 'navbar-normal';
     });
 </script>
 <?php if (isset($_GET['edit']) && isset($_GET['env']) && FM_EDIT_FILE && !FM_READONLY):
-        
+
         $ext = pathinfo($_GET["edit"], PATHINFO_EXTENSION);
         $ext =  $ext == "js" ? "javascript" :  $ext;
         ?>
@@ -4254,11 +4254,11 @@ function lng($txt) {
     $tr['en']['NormalEditor']   = 'Normal Editor';          $tr['en']['BackUp']             = 'Back Up';
     $tr['en']['SourceFolder']   = 'Source Folder';          $tr['en']['Files']              = 'Files';
     $tr['en']['Move']           = 'Move';                   $tr['en']['Change']             = 'Change';
-    $tr['en']['Settings']       = 'Settings';               $tr['en']['Language']           = 'Language';        
+    $tr['en']['Settings']       = 'Settings';               $tr['en']['Language']           = 'Language';
     $tr['en']['ErrorReporting'] = 'Error Reporting';        $tr['en']['ShowHiddenFiles']    = 'Show Hidden Files';
     $tr['en']['Help']           = 'Help';                   $tr['en']['Created']            = 'Created';
     $tr['en']['Help Documents'] = 'Help Documents';         $tr['en']['Report Issue']       = 'Report Issue';
-    $tr['en']['Generate']       = 'Generate';               $tr['en']['FullSize']           = 'Full Size';              
+    $tr['en']['Generate']       = 'Generate';               $tr['en']['FullSize']           = 'Full Size';
     $tr['en']['HideColumns']    = 'Hide Perms/Owner columns';$tr['en']['You are logged in'] = 'You are logged in';
     $tr['en']['Nothing selected']   = 'Nothing selected';   $tr['en']['Paths must be not equal']    = 'Paths must be not equal';
     $tr['en']['Renamed from']       = 'Renamed from';       $tr['en']['Archive not unpacked']       = 'Archive not unpacked';