(function ($) {
	Drupal.behaviors.backtotop = {
		attach: function(context) {
			var exist= jQuery('#backtotop').length;
      if(exist == 0) {
        $("body").append("<div id='backtotop'>"+Drupal.t("<span class='backtotop-wrapper'>&uarr;</span> TOP")+"</div>");
      }
			$(window).scroll(function() {
				if($(this).scrollTop() > Drupal.settings.back_to_top.back_to_top_button_trigger) {
					$('#backtotop').fadeIn();	
				} else {
					$('#backtotop').fadeOut();
				}
			});

			$('#backtotop').click(function() {
				$('body,html').animate({scrollTop:0},1200,'easeOutQuart');
			});	
		}
	};
})(jQuery);

/*
playback timings (ms):
  LoadShardBlock: 256.48 (3)
  esindex: 0.008
  captures_list: 324.22
  CDXLines.iter: 13.596 (3)
  PetaboxLoader3.datanode: 331.025 (4)
  exclusion.robots.fetch: 48.554 (4)
  exclusion.robots: 49.448
  exclusion.robots.policy: 0.396
  RedisCDXSource: 0.937
  PetaboxLoader3.resolve: 1053.883
  load_resource: 1165.525
*/