function hideLayer(){
	document.getElementById('pleasewait').visible=false;
}


function showLayer(){
	//document.pleasewait
	document.getElementById('pleasewait').visible=true;;
}

// AJAX ------------------------------------------------------------------------------

var xmlHttp; 

function createXMLHttpRequest() {
if (window.ActiveXObject) {
xmlHttp = new ActiveXObject("Microsoft.XMLHTTP");
}
else if (window.XMLHttpRequest) {
xmlHttp = new XMLHttpRequest();
}
}

//  ------------------------------------------------------------------------------
function iscrizione_newsletter(email) {

createXMLHttpRequest();

xmlHttp.onreadystatechange = function() {

	if(xmlHttp.readyState == 4) {
		if(xmlHttp.status == 200) {
			//alert(xmlHttp.responseText);
			esito = xmlHttp.responseText;
			alert(esito);

		}
		else {
            alert("There was a problem retrieving the XML data:\n" +
                xmlHttp.statusText);
        }
	};
}
	
	
datasource = "iscrizione.php?email=" + email;

xmlHttp.open("GET", datasource, true);
xmlHttp.send(null);
}