function my_custom_login_logo() {
    echo '<style type="text/<a href="google.az" class="st_tag internal_tag" rel="tag" title="Posts tagged with css">css</a>">
        <a href="google.az" class="st_tag internal_tag" rel="tag" title="Posts tagged with h1">h1</a> a { background-image:url('.get_bloginfo('template_directory').'/images/logoadi.png) !important; }
    </style>';
}

add_action('login_head', 'my_custom_login_logo');