diff --git a/wp-admin/admin-header.php b/wp-admin/admin-header.php
index 2944e7154..27c496a71 100644
--- a/wp-admin/admin-header.php
+++ b/wp-admin/admin-header.php
@@ -27,13 +27,21 @@ wp_admin_css( 'css/colors' );
 wp_admin_css( 'css/ie' );
 wp_enqueue_script('utils');
 
+$hook_suffix = '';
+if ( isset($page_hook) )
+	$hook_suffix = "$page_hook";
+else if ( isset($plugin_page) )
+	$hook_suffix = "$plugin_page";
+else if ( isset($pagenow) )
+	$hook_suffix = "$pagenow";
+
+$admin_body_class = preg_replace('/[^a-z0-9_-]+/i', '-', $hook_suffix);
 ?>
 <script type="text/javascript">
 //<![CDATA[
 addLoadEvent = function(func){if(typeof jQuery!="undefined")jQuery(document).ready(func);else if(typeof wpOnload!='function'){wpOnload=func;}else{var oldonload=wpOnload;wpOnload=function(){oldonload();func();}}};
 var userSettings = {'url':'<?php echo SITECOOKIEPATH; ?>','uid':'<?php if ( ! isset($current_user) ) $current_user = wp_get_current_user(); echo $current_user->ID; ?>','time':'<?php echo time() ?>'};
-var ajaxurl = '<?php echo admin_url('admin-ajax.php'); ?>';
-var pagenow = '<?php echo substr($pagenow, 0, -4); ?>';
+var ajaxurl = '<?php echo admin_url('admin-ajax.php'); ?>', pagenow = '<?php echo substr($pagenow, 0, -4); ?>', adminpage = '<?php echo $admin_body_class; ?>';
 //]]>
 </script>
 <?php
@@ -43,14 +51,6 @@ if ( in_array( $pagenow, array('post.php', 'post-new.php', 'page.php', 'page-new
 	wp_enqueue_script('quicktags');
 }
 
-$hook_suffix = '';
-if ( isset($page_hook) )
-	$hook_suffix = "$page_hook";
-else if ( isset($plugin_page) )
-	$hook_suffix = "$plugin_page";
-else if ( isset($pagenow) )
-	$hook_suffix = "$pagenow";
-
 do_action('admin_enqueue_scripts', $hook_suffix);
 do_action("admin_print_styles-$hook_suffix");
 do_action('admin_print_styles');
@@ -59,7 +59,6 @@ do_action('admin_print_scripts');
 do_action("admin_head-$hook_suffix");
 do_action('admin_head');
 
-$admin_body_class = preg_replace('/[^a-z0-9_-]+/i', '-', $hook_suffix);
 if ( get_user_setting('mfold') == 'f' ) {
 	$admin_body_class .= ' folded';
 }