diff --git a/dwoo/templates/board_header.tpl b/dwoo/templates/board_header.tpl
index 2a60dfb..5a0779d 100644
--- a/dwoo/templates/board_header.tpl
+++ b/dwoo/templates/board_header.tpl
@@ -29,7 +29,7 @@
 	title="{$|capitalize}" 
 	{if $__.customstyle eq $}data-custom="true"{/if}/>
 {/loop}{/strip}')</script>
-<noscript><link rel="stylesheet" href="{$cwebpath}getpreferredstylesheet.php"></noscript>
+<noscript><link rel="stylesheet" href="{$cwebpath}getpreferredstylesheet.php?allowed={implode(',', $ku_styles)}&default={$__.ku_defaultstyle}&v={%KU_CSSVER}{if $__.customstyle}&custom={$__.customstyle}&cv={$__.csver}{/if}"></noscript>
 <link href="{$cwebpath}css/prettify.css" type="text/css" rel="stylesheet" />
 {if $locale eq 'ja'}
 	{literal}
diff --git a/getpreferredstylesheet.php b/getpreferredstylesheet.php
index e21928b..531e570 100644
--- a/getpreferredstylesheet.php
+++ b/getpreferredstylesheet.php
@@ -1,15 +1,22 @@
 <?php
-$_GLOBALS['skipdb'] = true;
-require 'config.php';
-
-$style = $_COOKIE['kustyle'];
-if (!$style)
-	$style = KU_DEFAULTSTYLE;
-
-redirect(KU_WEBPATH.KU_BOARDSFOLDER.'css/'.strtolower($style).'.css?v='.KU_CSSVER);
-
-function redirect($url, $statusCode = 303) {
-	header('Location: ' . $url, true, $statusCode);
-	die();
+$c = strtolower($_COOKIE['kustyle']);
+if ($c && in_array($c, explode(',', $_GET['allowed']))) {
+	$is_custom = ($c == $_GET['custom']);
+	$style = $_COOKIE['kustyle'];
 }
+elseif ($_GET['custom']) {
+	$style = $_GET['custom'];
+	$is_custom = true;
+}
+else {
+	$style = $_GET['default'];
+	$is_custom = false;
+}
+
+$url = '/css/'.
+	($is_custom ? 'custom/' : '').
+	strtolower($style).'.css?v='.
+	($is_custom ? $_GET['cv'] : $_GET['v']);
+header('Location: ' . $url, true, 303);
+die();
 ?>
\ No newline at end of file