[vk65535]

document.documentElement.onmouseout = function() {
	var e = document.createElement('div');
	e.style.cssText = 'position: fixed; left: 5px; top: 5px; padding: 2px; background: #fff; border: 1px solid #000;'
	var hideTm, hide = function() { document.body.removeChild(e); hideTm = 0; };
	return function(ev) {
		var rt = ev ? ev.relatedTarget : event.toElement;
		e.innerHTML = 'related target: ' + (rt && rt.tagName);
		document.body.appendChild(e);
		if (hideTm) window.clearTimeout(hideTm);
		hideTm = window.setTimeout(hide, 2000);
	}
}();