diff --git a/detail.php b/detail.php
index 21dda38..f010711 100755
--- a/detail.php
+++ b/detail.php
@@ -1,3 +1,4 @@
+<!DOCTYPE html>
 <?php
 /**
  * DokuWiki Image Detail Page
@@ -11,7 +12,7 @@
 if (!defined('DOKU_INC')) die();
 header('X-UA-Compatible: IE=edge,chrome=1');
 
-?><!DOCTYPE html>
+?>
 <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="<?php echo $conf['lang']?>"
  lang="<?php echo $conf['lang']?>" dir="<?php echo $lang['direction'] ?>" class="no-js">
 <head>
@@ -28,7 +29,6 @@ header('X-UA-Compatible: IE=edge,chrome=1');
 </head>
 
 <body>
-    <!--[if lte IE 8 ]><div id="IE8"><![endif]-->
     <div id="dokuwiki__detail" class="<?php echo tpl_classes(); ?>">
         <?php html_msgarea() ?>
 
@@ -89,6 +89,5 @@ header('X-UA-Compatible: IE=edge,chrome=1');
 
         <?php endif; ?>
     </div>
-    <!--[if lte IE 8 ]></div><![endif]-->
 </body>
 </html>
diff --git a/js/sidebar.js b/js/sidebar.js
index 18cf739..c7d1104 100644
--- a/js/sidebar.js
+++ b/js/sidebar.js
@@ -19,7 +19,7 @@ jQuery(function () {
         setDefaultContent = function () {
             jQuery('body').removeClass('wide-content');
 
-        };
+        },
 
         /**
          * Accessibility helper, focuses the first link witih the given element
diff --git a/main.php b/main.php
index f571c09..c33bde4 100755
--- a/main.php
+++ b/main.php
@@ -17,19 +17,10 @@ $showSidebar =  true; /*  */
 $hasFooter = page_findnearest('pagefooter');
 $showFooter = $hasFooter && ($ACT === 'show');
 
-
-/* + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + */
-/* conditional comments for IE8 / IE9 browser detection if needed */
-/* + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + */
 ?>
-<!--[if lt IE 9]> <html class="no-js lt-ie10 lt-ie9" lang="<?php echo $conf['lang'] ?>" dir="<?php echo $lang['direction'] ?>"> <![endif]-->
-<!--[if IE 9]> <html class="no-js lt-ie10 ie-9" lang="<?php echo $conf['lang'] ?>" dir="<?php echo $lang['direction'] ?>"> <![endif]-->
-<!--[if gt IE 9]><!--> <html class="edge no-js" lang="<?php echo $conf['lang'] ?>" dir="<?php echo $lang['direction'] ?>"> <!--<![endif]-->
+<html class="edge no-js" lang="<?php echo $conf['lang'] ?>" dir="<?php echo $lang['direction'] ?>">
 <head>
-
 <?php
-
-
 /* + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + */
 /* meta and link relations */
 /* + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + */
@@ -40,18 +31,6 @@ $showFooter = $hasFooter && ($ACT === 'show');
 <?php
 
 
-/* + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + */
-/* conditional comments for HTML5 / media queries support in IE8 */
-/* + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + */
-?>
-<!--[if lt IE 9]>
-    <script src="https://oss.maxcdn.com/libs/html5shiv/3.7.0/html5shiv.js"></script>
-    <script src="https://oss.maxcdn.com/libs/respond.js/1.4.2/respond.min.js"></script>
-<![endif]-->
-
-<?php
-
-
 /* + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + */
 /* page title */
 /* + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + */
diff --git a/mediamanager.php b/mediamanager.php
index 8c85a6d..dd98bf3 100755
--- a/mediamanager.php
+++ b/mediamanager.php
@@ -1,3 +1,4 @@
+<!DOCTYPE html>
 <?php
 /**
  * DokuWiki Media Manager Popup
@@ -10,13 +11,8 @@
 if (!defined('DOKU_INC')) die();
 header('X-UA-Compatible: IE=edge,chrome=1');
 
-/* + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + */
-/* conditional comments for IE8 / IE9 browser detection if needed */
-/* + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + */
 ?>
-<!--[if lt IE 9]> <html class="no-js lt-ie10 lt-ie9" lang="<?php echo $conf['lang'] ?>" dir="<?php echo $lang['direction'] ?>"> <![endif]-->
-<!--[if IE 9]> <html class="no-js lt-ie10 ie-9" lang="<?php echo $conf['lang'] ?>" dir="<?php echo $lang['direction'] ?>"> <![endif]-->
-<!--[if gt IE 9]><!--> <html class="edge no-js" lang="<?php echo $conf['lang'] ?>" dir="<?php echo $lang['direction'] ?>"> <!--<![endif]-->
+<html class="edge no-js" lang="<?php echo $conf['lang'] ?>" dir="<?php echo $lang['direction'] ?>">
 <head>
     <?php
 
@@ -29,20 +25,6 @@ header('X-UA-Compatible: IE=edge,chrome=1');
     <meta name="viewport" content="width=device-width, initial-scale=1.0" />
     <?php tpl_metaheaders() ?>
     <?php
-
-
-    /* + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + */
-    /* conditional comments for HTML5 / media queries support in IE8 */
-    /* + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + */
-    ?>
-    <!--[if lt IE 9]>
-    <script src="https://oss.maxcdn.com/libs/html5shiv/3.7.0/html5shiv.js"></script>
-    <script src="https://oss.maxcdn.com/libs/respond.js/1.4.2/respond.min.js"></script>
-    <![endif]-->
-
-    <?php
-
-
     /* + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + */
     /* page title */
     /* + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + */
