function valider_abonnement_newsletter() {
	
	var request = new XMLHttpRequest();
	var courriel = document.getElementById("oCourriel").value;
	request.onreadystatechange = function() {
		if (request.readyState == 4) {
			if (request.status == 200) {
				alert(request.responseText);
				document.getElementById("oCourriel").value = "";
			}
		}
	};
	request.open("post", "/scripts/abonnement_newsletter.php", true);
	request.setRequestHeader("Content-Type", "application/x-www-form-urlencoded");
	request.send("courriel=" + courriel);
}