(function ($) { Drupal.behaviors.backtotop = { attach: function(context) { var exist= jQuery('#backtotop').length; if(exist == 0) { $("body").append("
"+Drupal.t("Back to Top")+"
"); } $(window).scroll(function() { if($(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);