Прошу помощи! WP опции шаблона. Реакция на значение

add_action('admin_menu','add_user_options');   

function add_user_options(){
add_options_page('Theme Options','Theme settings','edit_themes','functions','edit_theme_options');
}

function edit_theme_options(){
$options_names = array('option1','option2');
if ('update'==$_REQUEST['action']){
    foreach ($options_names as $option_name){
        if (!get_option($option_name)) {add_option($option_name);}
        $checked = isset($_POST[$option_name])?1 : 0;
        update_option($option_name, $checked);
        }
}

<div class="wrap">
<h2>Theme Settings</h2>
<form method="post" action="">
<?php wp_nonce_field(); ?>
<br />
<input type="checkbox" name="option1" <?php  if(get_option('option1')>0){ echo('checked="checked"');} ?> />
Use option1
<br /><br />
<input type="checkbox" name="option2" <?php if(get_option('option2')>0){ echo('checked="checked"');} ?>  />
Use option2
</div>