It works well on "standard" webpages, dropped a star as it only registers the page load for the initial page loaded via ajax, so jquery mobile pages loaded in the standard way will not trigger the timer, but you can refresh the page to trigger it. How to check whether an image is loaded or not ? If a visitor initiated navigation away from the page or tries to close the window, the beforeunload handler asks for additional confirmation. Here's how to do just that with MooTools 1.2. Now, I only need my confirmation of "is the time until everything loaded in miliseconds" question. Has Microsoft lowered its Windows 11 eligibility criteria? below). ,