the enque php

add_action( 'admin_init', 'drfb_plugin_init' );

function drfb_plugin_init() {
    wp_enqueue_script('media-upload');
    wp_enqueue_script('jquery');
    wp_enqueue_script('thickbox',null,array('jquery','media-upload'));
    wp_enqueue_style('thickbox.css', '/'.WPINC.'/js/thickbox/thickbox.css', null, '1.0');
    wp_enqueue_script('drfb-upload', DRFB_PATH .'/drfb-script.js', false, '1.0');
}