public function postIndex()
{
$postData = $this->request()->postVariables();
$user = Auth::authByCredentials(StdLoginCredentials::make($postData['username'], $postData['password']));
if ($user && Auth::loggedIn()) {
Redirect::to('/admin')->now();
} else {
Redirect::to('/admin')->with('msg', 'Login Failed, please check username and password is correct')->now();
}
}
