Fancy Box issues WP-Answers

<?php

if ( ! empty( $_GET['fancybox-ie-css'] ) ) {
    include dirname( __FILE__ ) . '/ie.php';
    exit;
}

/**
 * Auto-init fancybox for image links.
 */
function wpx_fancybox()
{
    $config = empty( $GLOBALS['wpx_fancybox'] ) ? array() : wp_parse_args( $GLOBALS['wpx_fancybox'] );
    $config = apply_filters( 'wpx_fancybox', $config );
    $config = empty( $config ) ? '' :  json_encode( $config );

    echo <<<HTML
<script type="text/javascript">jQuery.wpxFancybox($config);</script>
HTML;
}

/**
 * Enqueue Fancybox. Call anywhere before {@see wp_print_styles()}.
 */
function wpx_fancybox_enqueue()
{
    add_action( 'wp_footer', 'wpx_fancybox' );

    $url = plugins_url( '', __FILE__ );
    $dev = WP_DEBUG ? '.dev' : '';

    wp_enqueue_script( 'wpx-fancybox', "$url/js/jquery.fancybox$dev.js", array( 'jquery' ), '1.3.4.1' );
    wp_enqueue_style( 'wpx-fancybox', "$url/css/fancybox$dev.css", array(), '1.3.4', 'screen' );
    wp_enqueue_style( 'wpx-fancybox-ie', home_url( '?fancybox-ie-css=1.3.4.css' ), array(), null, 'screen' );

    if ( ! empty( $GLOBALS['wp_styles'] ) )
        $GLOBALS['wp_styles']->add_data( 'wpx-fancybox-ie', 'conditional', 'IE' );
}
add_action( 'wp_head', 'wpx_fancybox_enqueue', 1 );
add_action( 'wpx_fancybox_enqueue', 'wpx_fancybox_enqueue' );

/**
 * Dequeue Fancybox. Call anywhere before {@see wp_print_styles()}.
 */
function wpx_fancybox_dequeue()
{
    remove_action( 'wp_head', 'wpx_fancybox_enqueue', 1 );
    remove_action( 'wp_footer', 'wpx_fancybox' );

    if ( did_action( 'wp_enqueue_scripts' ) ) {
        wp_dequeue_script( 'wpx-fancybox' );
        wp_dequeue_style( 'wpx-fancybox' );
        wp_dequeue_style( 'wpx-fancybox-ie' );
    }
}
add_action( 'wpx_fancybox_dequeue', 'wpx_fancybox_dequeue' );

?>