Ctools modal close breaks page JS
You should pass the context in and use the once() function to make sure your events are only bound once, and in the right context. Something like:

(function($, Drupal) {
  Drupal.behaviors.ukgproducts = {
    attach: function(context, settings) {
      $('h2', context).once('myaccordian').click(function(e) {
        e.preventDefault();
        $(this).closest('.binder').find('.product-list').toggle('slow');
      });
    }
  };
})(jQuery, Drupal);