基于Jquery的简单&简陋Tabs插件代码

<div class="tab">
<li class="selected" >1</li>
<li class="hover">2</li>
<li class="hover">3</li>
</div>
<div class="tab_box">
<div class="newslist">第一个</div>
<div class="newslist">第二个</div>
<div class="newslist">第三个</div>
</div>

$().PPXTabs({ nav:.tab li,nav_txt:.tab_box div,selectedClass:selected,hoverClass:hover});

/*    ================================================================
*    Copyright 2009 PPX
*    邮箱:    Mr.cuix@Gmail.com
*    原始版本作者:PPX 创建时间:2010-2-8 10:20
*    ================================================================
*    参数说明
*    <param name="nav">导航列</param>
*    <param name="nav_txt">导航内容</param>
*    <param name="selectedClass">选中时的样式</param>
*    <param name="hoverClass">经过时的样式</param>
*
*    默认为
*    $().PPXTabs({
                nav:.news_title1 li,
                nav_txt:.news_list_box div,
                selectedClass:tab_1_A,
                hoverClass:tab_1_B
                });
    ===================================
    Demo
    -----
    <div class="tab">
        <li class="selected" >1</li>
        <li class="hover">2</li>
        <li class="hover">3</li>
    </div>
    <div class="tab_box">
        <div class="newslist">第一个</div>
        <div class="newslist">第二个</div>
        <div class="newslist">第三个</div>
    </div>
    ===================================
    css
    -----
    $().PPXTabs({ nav:.tab li,nav_txt:.tab_box div,selectedClass:selected,hoverClass:hover});
*/

$.fn.PPXTabs=function(options){
        //默认配置
        var settings={
             nav:.news_title1 li,
             nav_txt:.news_list_box div,
             selectedClass:tab_1_A,
             hoverClass:tab_1_B
        };
        //主函数
        $(function(){
            var tab_menu_li = $(settings.nav);
            $(settings.nav_txt+:gt(0)).hide();

            tab_menu_li.hover(function(){
                //鼠标移入
                $(this).removeClass(settings.hoverClass);
                $(this).siblings().find("."+settings.selectedClass).removeClass(settings.selectedClass);
                $(this).siblings("li").addClass(settings.hoverClass);
                $(this).addClass(settings.selectedClass);
                var index = tab_menu_li.index(this);
                $(settings.nav_txt).eq(index).show().siblings().hide();
            },function(){
                //鼠标移出
                $(this).removeClass(settings.selectedClass);
                $(this).siblings().find("."+settings.selectedClass).removeClass(settings.selectedClass);
                $(this).siblings("li").addClass(settings.hoverClass);
                $(this).addClass(settings.selectedClass);

            });

        });
        if(options){
            $.extend(settings,options);
        }

    
    };