Load child theme script

<?php
    /**
     * A safe way of removing JavaScripts to a WordPress generated page.
     */
    if (!is_admin())
        add_action('wp_enqueue_scripts', 'responsive_js');

    if (!function_exists('responsive_js')) {

        function responsive_js() {
            // JS at the bottom for fast page loading.
            // except for Modernizr which enables HTML5 elements & feature detects.
            wp_dequeue_script('modernizr', get_template_directory_uri() . '/js/responsive-modernizr.js', array('jquery'), '2.6.1', false);
            wp_dequeue_script('responsive-scripts', get_template_directory_uri() . '/js/responsive-scripts.js', array('jquery'), '1.2.1', true);
            wp_dequeue_script('responsive-plugins', get_template_directory_uri() . '/js/responsive-plugins.js', array('jquery'), '1.1.1', true);
        }

    }
?>
<?php
    /**
     * A safe way of adding JavaScripts to a WordPress generated page.
     */
    if (!is_admin())
        add_action('wp_enqueue_scripts', 'responsive_child_js');

    if (!function_exists('responsive_child_js')) {

        function responsive_child_js() {
            // JS at the bottom for fast page loading.
            // except for Modernizr which enables HTML5 elements & feature detects.
            wp_enqueue_script('modernizr-child', get_stylesheet_directory_uri() . '/js/responsive-modernizr.js', array('jquery'), '2.6.1', false);
            wp_enqueue_script('responsive-child-scripts', get_stylesheet_directory_uri() . '/js/responsive-scripts.js', array('jquery'), '1.2.1', true);
            wp_enqueue_script('responsive-child-plugins', get_stylesheet_directory_uri() . '/js/responsive-plugins.js', array('jquery'), '1.1.1', true);
        }

    }
?>