function close_highlight_message() {
	var id="flashMessage";
	if (document.getElementById(id)) {
		var elemento=document.getElementById(id);
		if (elemento.innerHTML.length > 0) {
			new Effect.Fade(id, {duration: 1.5});
		}
	}
}

Event.observe(window, 'load', function() {
	var fade = setTimeout("close_highlight_message()", 3500);
});

Event.observe(window, 'click', close_highlight_message, false);