var ns = document.all ? false : true;
var browserVersion = parseFloat(navigator.appVersion);

var bShowAccount = false;
var authBoxObject = null;
var accountImgObject = null;

function ToggleAccount() {
    if (authBoxObject == null) {
        InitToggle();
    }

    if (bShowAccount) {
        // hide it
        authBoxObject.display = 'none';
        bShowAccount = false;
    } else {
        // show it
        authBoxObject.display = 'block';
        bShowAccount = true;
    }
}

function InitToggle() {
    if (ns) {
        if (browserVersion >= 5) {
            authBoxObject = document.getElementById("AuthBox").style;
            accountImgObject  = document.getElementById("AccountImg").style;
        } else {
            authBoxObject = eval("document.AuthBox");
            accountImgObject  =  eval("document.AccountImg");
        }
    } else {
        authBoxObject = eval("AuthBox.style");
        accountImgObject  =  eval("AccountImg.style");
    }
}