// 图片切换
function my_ads_img_auto(){
    var first = $('.center-box-ad-nav li').first();
    var next = $('.ad-nav-selected').next();
    if (next.length == 0) {
        first.click();
    } else {
        next.click();
    }
}
// 右边图片切换
function my_ads_img_left(){
    var ul = $(this).parent().parent();
    var ani = ul.attr('ani');
    if ((ani == undefined || ani == 'over') && !$(this).hasClass('selected')){
        ul.attr('ani', 'start');
        var dur = 300;
        var o = $(this).addClass('selected');
        var n = o.prev();
        var s = $('.img_box_ul .selected .img_box_img');
        s.next().removeClass('selected');
        s.animate({'height':o.height()}, dur, function(){
            s.parent().removeClass('selected').find('img').hide();
        });
        n.animate({'height':n.find('img').show().height()}, dur, function(){
            n.parent().addClass('selected');
            ul.attr('ani', 'over');
        });
    }
}
$(document).ready(function(){
    var my_ads_img_int;
    $('.center-box-ad .center-box-ad-nav > li').click(function(){
        var t = $(this);
        if (!t.hasClass('ad-nav-selected')) {
            var dur = 700;
            $('.ad-nav-selected').removeClass('ad-nav-selected');
            t.addClass('ad-nav-selected'); 
            $('.ad-img-selected').fadeOut(dur, function(){$(this).removeClass('ad-img-selected');});
            $('.'+t.attr('id')).fadeIn(dur, function(){$(this).addClass('ad-img-selected');});
        }
    });
    $('.center-box-ad').hover(function(){ clearInterval(my_ads_img_int); },
        function(){ my_ads_img_int = setInterval(my_ads_img_auto, 4000); }).mouseout();
    $('.img_box_title').click(my_ads_img_left);
});