gravatar-hovercards.php

<?php
/*
Plugin Name: Gravatar Hovercards
Plugin URI: http://ottopress.com/2010/gravatar-hovercards/
Description: Hover over a Gravatar to get more info. Neat-o!
Version: 0.1
Author: Otto
*/

function gravatar_hovercards_jquery() {
        wp_enqueue_script('jquery');
}
add_action('wp_enqueue_scripts', 'gravatar_hovercards_jquery');

function gravatar_hovercards() {
        echo '<script type="text/javascript" src="http://s.gravatar.com/js/gprofiles.js"></script>';
}
add_action('wp_footer','gravatar_hovercards');