function AvvReaded(){
	var request = null;

	var div = document.getElementById("resultdiv");
	var URL = "readed_session.php";

	div.innerHTML = "<img src='imgbox/loader.gif'> elaborazione richiesta in corso";	
	
	if(window.XMLHttpRequest){
		request = new XMLHttpRequest();
	}
	else{
		request = new ActiveXObject("Microsoft.XMLHTTP");
	}
	if(request){
		request.open("GET", URL);
		request.setRequestHeader("Content-Type", "application/x-www-form-urlencoded; charset=UTF-8"); 
		request.onreadystatechange = 
		function(){
		if(request.readyState == 4){
			window.location.reload();
		}
	}
	request.send(null);
	}
	else{
		alert("Devi aggiornare il tuo browser");
	}
}