function envoyer_mot(mot, section)
{
	var xhr_object = null; // Objet XMLHttpRequest
	var valeur = document.getElementById('field' + mot).value;
	document.getElementById(mot).innerHTML = "<img src=\"/images/working.gif\" border=0/>";
	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", "index.php", true);

	xhr_object.onreadystatechange = function() {
 				if(xhr_object.readyState == 4) {
    				document.getElementById(mot).innerHTML = xhr_object.responseText;
 				}
		else
		{
			//document.getElementById(mot).innerHTML = "Erreur !";
		}
	}

	xhr_object.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
	xhr_object.send("valeur=" + valeur + "&mot=" + mot + "&section=" + section);
}