+/**
+ * Display JavaScript on the page.
+ *
+ * @package WordPress
+ * @subpackage Reading_Settings_Screen
+ */
+function add_js() {
+?>
+<script type="text/javascript">
+//<![CDATA[
+ jQuery(document).ready(function($){
+ var section = $('#front-static-pages'),
+ staticPage = section.find('input:radio[value="page"]'),
+ selects = section.find('select'),
+ check_disabled = function(){
+ selects.attr('disabled', staticPage.is(':checked') ? '' : 'disabled');
+ };
+ check_disabled();
+ section.find('input:radio').change(check_disabled);
+ });
+//]]>
+</script>
+<?php
+}
+add_action('admin_head', 'add_js');
+