old_contents: Blacklight.onLoad(function() {
    $(window).on('load', function(){
  
      //remove default mast search to fix duplicate IDs
      $(".blacklight-catalog-advanced_search #search-navbar").remove();
      $(".blacklight-trln-advanced_search #search-navbar").remove();
      
      // change adv search scope
    	window.location.href.indexOf('advanced_trln') != -1 ? $('#option_trln').attr('checked',true) : $('#option_catalog').attr('checked',true);
    	
    	$("input[type='radio'][name='option']").change(function() {
          var action = $(this).val();
          $(".advanced").attr("action", "/" + action);
       });
  
      // fix labeling for fields generated by Chosen jquery library (https://harvesthq.github.io/chosen/)
      $("[id$='_chosen']").each(function() {
        $the_id = $(this).attr('id');
        $aria_label = $(this).attr('id').replace('_chosen', '_label');
        $('#' + $the_id + ' .chosen-search-input').attr('aria-labelledby', $aria_label);
      });
  
    });
  });
new_contents: Blacklight.onLoad(function() {
    $(window).on('load', function(){
  
      //remove default mast search to fix duplicate IDs
      $(".blacklight-catalog-advanced_search #search-navbar").remove();
      $(".blacklight-trln-advanced_search #search-navbar").remove();
      
      // change adv search scope
    	$(".blacklight-trln-advanced_search").length > 0 ? $('#option_trln').attr('checked',true) : $('#option_catalog').attr('checked',true);
    	
    	$("input[type='radio'][name='option']").change(function() {
          var action = $(this).val();
          $(".advanced").attr("action", "/" + action);
       });
  
      // fix labeling for fields generated by Chosen jquery library (https://harvesthq.github.io/chosen/)
      $("[id$='_chosen']").each(function() {
        $the_id = $(this).attr('id');
        $aria_label = $(this).attr('id').replace('_chosen', '_label');
        $('#' + $the_id + ' .chosen-search-input').attr('aria-labelledby', $aria_label);
      });
  
    });
  });
subject: Remove window.location.href in advanced search js