Made some tweaks to the ajax login javascript. Cleared the inputs on failure so someone won't repeatedly try a bad login. Redirect on lockout so the page will refresh. Set focus on the username box after failure for convenience.

div.potd-details {
    text-align: center;
}
div.potd-details p.caption {
    font-weight: bold;
}
div.potd-details p.details {
    font-style: italic;
    font-size: smaller;
}