Admin and Toolbar on the bottom, how to dropup menus?

you can move admin toolbar to bottom using this function
add to functions.php in current themes:

function fb_move_admin_bar() {
    echo '
    <style type="text/css">
    body { 
    margin-top: -28px;
    padding-bottom: 28px;
    }
    body.admin-bar #wphead {
       padding-top: 0;
    }
    body.admin-bar #footer {
       padding-bottom: 28px;
    }
    #wpadminbar {
        top: auto !important;
        bottom: 0;
    }
    #wpadminbar .quicklinks .menupop ul {
        bottom: 28px;
    }
    </style>';
}
// on backend area
add_action( 'admin_head', 'fb_move_admin_bar' );
// on frontend area
add_action( 'wp_head', 'fb_move_admin_bar' );

or using this plugins: http://wordpress.org/extend/plugins/stick-admin-bar-to-bottom/