function updateMI(selectObj) {
    series = selectObj.value;
    myconn = new XHConn();
    var fnWhenDone = function(oXML) {
        miSelectDiv = document.getElementById("model_inscription_div");
        miSelectDiv.innerHTML = oXML.responseText;
    };
    myconn.connect("../inc/modelInscription.aspx", "POST", "s=" + series, fnWhenDone);
}