function AjouterNewsletter(){

	if(Verifmail()){
			
		var xhr_object = null;
		if(window.XMLHttpRequest) // Firefox
			xhr_object = new XMLHttpRequest();
		else if(window.ActiveXObject) // Internet Explorer
			xhr_object = new ActiveXObject("Microsoft.XMLHTTP");
		else{ // XMLHttpRequest non supporté par le navigateur
			alert("Votre navigateur ne supporte pas les objets XMLHTTPRequest...");
			return;
		}
		xhr_object.open("POST", "../ajouter_newsletter.php", true);
		xhr_object.onreadystatechange = function() {
			   if(xhr_object.readyState == 4) eval(xhr_object.responseText);
			}
		xhr_object.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
		var data = "mail="+document.getElementById('mail').value+"&ip="+document.getElementById('ip').value;
		xhr_object.send(data);
	}else{
		document.getElementById('NL2').style.display = 'block';
		document.getElementById('NL2').innerHTML = 'Veuillez entrer un email valide !';	
	}
}
function Verifmail(){
	adresse = document.getElementById('mail').value;
	var place = adresse.indexOf("@",1);
	var point = adresse.indexOf(".",place+1);
	if ((place > -1)&&(adresse.length >2)&&(point > 1)){
		return(true);
	}else{
		return(false);
	}
}