sogo/UI/WebServerResources/SOGoRootPage.js

function initLogin() {
    var date = new Date();
    date.setTime(date.getTime() - 86400000);
    document.cookie = ("0xHIGHFLYxSOGo-0.9=discard; path=/"
                       + "; expires=" + date.toGMTString());
    var submit = $("submit");
    submit.observe("click", onLoginClick);

    var userName = $("userName");
    userName.focus();

    var image = $("preparedAnimation");
    image.parentNode.removeChild(image);
}

function onLoginClick(event) {
    var userNameField = $("userName");
    var userName = userNameField.value;
    var password = $("password").value;

    if (userName.length > 0) {
        startAnimation($("loginButton"), $("submit"));

        if (typeof(loginSuffix) != "undefined"
            && loginSuffix.length > 0
            && !userName.endsWith(loginSuffix))
            userName += loginSuffix;
        var url = $("connectForm").getAttribute("action");
        var parameters = ("userName=" + encodeURI(userName) + "&password=" + encodeURI(password));
        document.cookie = "";
        triggerAjaxRequest(url, onLoginCallback, null, parameters,
                           { "Content-type": "application/x-www-form-urlencoded",
                                   "Content-length": parameters.length,
                                   "Connection": "close" });
    }
    else
        userNameField.focus();

    preventDefault(event);
}

function onLoginCallback(http) {
    if (http.readyState == 4) {
        if (isHttpStatus204(http.status)) {
            var userName = $("userName").value;
            if (typeof(loginSuffix) != "undefined"
                && loginSuffix.length > 0
                && !userName.endsWith(loginSuffix))
                userName += loginSuffix;
            var address = "" + window.location.href;
            var baseAddress = ApplicationBaseURL + encodeURI(userName);
            var altBaseAddress;
            if (baseAddress[0] == "/") {
                var parts = address.split("/");
                var hostpart = parts[2];
                var protocol = parts[0];
                baseAddress = protocol + "//" + hostpart + baseAddress;
            }
            var altBaseAddress;
            var parts = baseAddress.split("/");
            parts.splice(3, 0);
            altBaseAddress = parts.join("/");

            var newAddress;
            if ((address.startsWith(baseAddress)
                 || address.startsWith(altBaseAddress))
                && !address.endsWith("/logoff"))
                newAddress = address;
            else
                newAddress = baseAddress;
            window.location.href = newAddress;
        }
        else {
            var message = $("loginErrorMessage");
            message.setStyle({ display: "block" });
        }
    }
}

FastInit.addOnLoad(initLogin);