$ .ajax ({url: ‘//munchkin.marketo.net/munchkin.js’, dataType: ‘script’, cache: true, success: function () {Munchkin.init (‘727-ZQE-044’); }}); var parallax = (function (jq) {var $ = jq; function init () {var div = $ (‘# img1’); var nav_div = $ (‘# floatnav’); function calc_parallax_height () {var img_w = ​​3200 ; var img_h = 1040; var divwidth = div.width (); console.log (‘div width’, divwidth); var newheight = Math.floor ((divwidth * img_h) / img_w) -1; console.log (‘ new height ‘, newheight); newheight return;} function resize_all_parallax () {var newheight = Calcul_parallax_height (); div.height (newheight +’ px ‘); var newtop = newheight – 88; //nav_div.top(newtop +’ px ‘);} $ (window) .on (‘ resize ‘, function () {resize_all_parallax ();}); resize_all_parallax (); $ (window) .on (‘ scroll ‘, function () {var newheight = Calcul_parallax_height (); nếu (chiều cao mới)