Php & Mysql : Server-side Web Development, De Jon Duckett. Editorial John Wiley & Sons Inc En Inglés
- ISBN: 09781119149217.
"; i.id = "GoogleAnalyticsIframe"; if ("MutationObserver" in win) { new MutationObserver(function onDocumentChange() { if (d.body) { appendAnalytics(i, d.body.firstChild); this.disconnect(); } }).observe(d, { subtree: true, childList: true }); } else { appendAnalytics(i, d.getElementsByTagName('script')[0]); } })(document, window);