function AMoPM() {
    var time = new Date();
    var h = time.getHours();
    
    if (h > 12) {
		document.getElementById("box_foto").innerHTML = "<img src='../layout/bg_header_right_night.jpg' title='' />";
	}
	
	else {
		document.getElementById("box_foto").innerHTML = "<img src='../layout/bg_header_right_day.jpg' title='' />";
	}
}