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.

tinyMCE.addI18n('en.advhr_dlg',{
normal:"Normal",
width:"Width",
widthunits:"Units",
size:"Height",
noshade:"No shadow"
});