function fireEvent(e, t) { 
    if (!document.createEvent) {
        var n = document.createEventObject();
        return e.fireEvent("on" + t, n)
    }
    var n = document.createEvent("HTMLEvents");
    n.initEvent(t, true, true);
    return !e.dispatchEvent(n)
}
 
function forceChangeField(e, t, n) {
    function r() { fireEvent(e, "focus") }
    function i() { fireEvent(e, "change") }
    e.value = t; i.callAsync(n + 100);
}
 
Function.prototype.callAsync = function (E) {
    var t = this;
    var e = E || 1;
    setTimeout(function () { t.call(T); }, e);
    return
};
 
var loginField = document.getElementById("josso_username");
var passwordField = document.getElementById("josso_password");
forceChangeField(loginField, "$(username)"); 
forceChangeField(passwordField, "$(password)", 1000); 
var loginBtn = document.getElementById("submitLogin"); loginBtn.click();