beforeload = (new Date()).getTime();
function pageloadingtime()
{
	afterload = (new Date()).getTime();
	loadtime_in_ms = (afterload-beforeload);
    url = window.top.location;

    image = new Image();
    image.src = "http://scalemetrix.appspot.com/takemeasurement?url="+escape(url)
        +"&loadtime_in_ms="+loadtime_in_ms
        +"&user_agent="+escape(navigator.userAgent);
}

window.onload = pageloadingtime;