Load jQuery and HTML5 Shim in the frontend via wp_footer()
// Include HTML5 Shim
function add_ie_html5_shim () {
echo '<!--[if lt IE 9]>';
echo '<script src="http://html5shim.googlecode.com/svn/trunk/html5.js"></script>';
echo '<![endif]-->';
}
add_action('wp_head', 'add_ie_html5_shim');
// Include jQuery
if (!is_admin()) add_action("wp_enqueue_scripts", "my_jquery_enqueue", 11);
function my_jquery_enqueue() {
wp_deregister_script('jquery');
wp_register_script('jquery', "http" . ($_SERVER['SERVER_PORT'] == 443 ? "s" : "") . "://ajax.googleapis.com/ajax/libs/jquery/1.7.1/jquery.min.js", false, null);
wp_enqueue_script('jquery');
}