<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">第一個</div>
<div class="newslist">第二個</div>
<div class="newslist">第三個</div>
</div>

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

/*    ================================================================
*    Copyright 2009 PPX
*    郵箱:    Mr.cuix@Gmail.com
*    原始版本作者:PPX 創(chuàng)建時間:2010-2-8 10:20
*    ================================================================
*    參數(shù)說明
*    <param name="nav">導航列</param>
*    <param name="nav_txt">導航內(nèi)容</param>
*    <param name="selectedClass">選中時的樣式</param>
*    <param name="hoverClass">經(jīng)過時的樣式</param>
*
*    默認為
*    $().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">第一個</div>
        <div class="newslist">第二個</div>
        <div class="newslist">第三個</div>
    </div>
    ===================================
    css
    -----
    $().PPXTabs({ nav:'.tab li',nav_txt:'.tab_box div',selectedClass:'selected',hoverClass:'hover'});
*/

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

            tab_menu_li.hover(function(){
                //鼠標移入
                $(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(){
                //鼠標移出
                $(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);
        }

    
    };