Jquery 提示信息插件

(function ($) {
    $.fn.Tips = function (options) {
        var defaults = {
            html: "",
            times: 3000
        }
        _this_ = $("#tips");
        _this_.html(options.html);
        _this_.show();
        setTimeout(function () { _this_.hide() }, options.times);
    };
})(jQuery);

.tips
{
    height: 20px;
    background-color: Green;
    padding: 5px 20px;
    color: White;
    display: none;
    margin-left: 50px;
}

<span class="tips" style="display:none" id="tips"><span>
$("#aa").Tips({html:"提示信息的内容",times:4000})