(function() { var R = window.Resume = {}; R.PageView = Backbone.View.extend({ el: $("body")[0], initialize: function(options) { window.addEventListener("scroll", this.fixHeader); }, fixHeader: _.throttle(function(e) { var $h = $("header"); if ($(document).scrollTop() > 100) { $h.addClass("fixed"); } else $h.removeClass("fixed"); }, 100) }); })();