function getILikeThis($arg) {
    global $wpdb;
    $post_ID = get_the_ID();
    $ip = $_SERVER['REMOTE_ADDR'];

    $liked = get_post_meta($post_ID, '_liked', true) != '' ? get_post_meta($post_ID, '_liked', true) : '0';
    $voteStatusByIp = $wpdb->get_var("SELECT COUNT(*) FROM ".$wpdb->prefix."ilikethis_votes WHERE post_id = '$post_ID' AND ip = '$ip'");

    if (!isset($_COOKIE['liked-'.$post_ID]) && $voteStatusByIp == 0) {
        if (get_option('ilt_textOrImage') == 'image') {
            $counter = '<a onclick="likeThis('.$post_ID.');" class="image">'.$liked.'</a>';
        }
        else {
            $counter = $liked.' <a onclick="likeThis('.$post_ID.');">'.get_option('ilt_text').'</a>';
        }
    }
    else {
        $counter = $liked;
    }

    $iLikeThis = '<div id="iLikeThis-'.$post_ID.'" class="iLikeThis">';
        $iLikeThis .= '<span class="counter">'.$counter.'</span>';
    $iLikeThis .= '</div>';

    if ($arg == 'put') {
        return $iLikeThis;
    }
    else {
        echo $iLikeThis;
    }
}

if (get_option('ilt_onPage') == '1') {
    function putILikeThis($content) {
        if(!is_feed() && !is_page()) {
            $content.= getILikeThis('put');
        }
        return $content;
    }

    add_filter('the_content', putILikeThis);
}

function enqueueScripts() {
    if (get_option('ilt_jquery') == '1') {
        wp_enqueue_script('iLikeThis', WP_PLUGIN_URL.'/i-like-this/js/i-like-this.js', array('jquery'));
    }
    else {
        wp_enqueue_script('iLikeThis', WP_PLUGIN_URL.'/i-like-this/js/i-like-this.js');
    }
}

function addHeaderLinks() {
    echo '<link rel="stylesheet" type="text/css" href="'.WP_PLUGIN_URL.'/i-like-this/css/i-like-this.css" media="screen" />'."\n";
    echo '<script type="text/javascript">var blogUrl = \''.get_bloginfo('wpurl').'\'</script>'."\n";
}

add_action('init', enqueueScripts);
add_action('wp_head', addHeaderLinks);
?>