Use Conditionals with WP Enqueue Script and Genesis

gistfile1.txt

/** Load scripts on Portfolio page */
add_action('genesis_after_footer', 'child_load_portfolio');
function child_load_portfolio() {
    if(is_page('Portfolio')) { 
        wp_register_script( 'isotope', get_bloginfo('stylesheet_directory').'/lib/js/jquery.isotope.min.js' );
        wp_enqueue_script ( 'isotope' );
    }
}
 
/** Isotope vars */
add_action('genesis_after', 'child_script_portfolio');
function child_script_portfolio() {
    if(is_page('Portfolio')) { ?>
      <script type="text/javascript">
          var $container = $('#container');
          // initialize isotope
          $container.isotope({
              layoutMode: 'fitRows',
          });
 
          // filter items when filter link is clicked
          $('#filters a').click(function(){
              var selector = $(this).attr('data-filter');
              $container.isotope({ filter: selector });
              return false;
          });
 
      </script>
<?php } }