//图片自适应
function DrawImage(ImgD, FitWidth, FitHeight) {
    var image = new Image();
    image.src = ImgD.src;
    if (image.width > 0 && image.height > 0) {
        if (image.width / image.height >= FitWidth / FitHeight) {
            if (image.width > FitWidth) {
                ImgD.width = FitWidth;
                ImgD.height = (image.height * FitWidth) / image.width;
            } else {
                ImgD.width = image.width;
                ImgD.height = image.height;
            }
        } else {
            if (image.height > FitHeight) {
                ImgD.height = FitHeight;
                ImgD.width = (image.width * FitHeight) / image.height;
            } else {
                ImgD.width = image.width;
                ImgD.height = image.height;
            }
        }
    }
}

//图片滚动 调用方法 imgscroll({speed: 30,amount: 1,dir: "up"});
$.fn.imgscroll = function (o) {
    var defaults = {
        speed: 40,
        amount: 0,
        width: 1,
        dir: "left"
    };
    o = $.extend(defaults, o);

    return this.each(function () {
        var _li = $("li", this);
        _li.parent().parent().css({ overflow: "hidden", position: "relative" }); //div
        _li.parent().css({ margin: "0", padding: "0", overflow: "hidden", position: "relative", "list-style": "none" }); //ul
        _li.css({ position: "relative", overflow: "hidden" }); //li
        if (o.dir == "left") _li.css({ float: "left" });

        //初始大小
        var _li_size = 0;
        for (var i = 0; i < _li.size(); i++)
            _li_size += o.dir == "left" ? _li.eq(i).outerWidth(true) : _li.eq(i).outerHeight(true);

        //循环所需要的元素
        if (o.dir == "left") _li.parent().css({ width: (_li_size * 3) + "px" });
        _li.parent().empty().append(_li.clone()).append(_li.clone()).append(_li.clone());
        _li = $("li", this);

        //滚动
        var _li_scroll = 0;
        function goto() {
            _li_scroll += o.width;
            if (_li_scroll > _li_size) {
                _li_scroll = 0;
                _li.parent().css(o.dir == "left" ? { left: -_li_scroll} : { top: -_li_scroll });
                _li_scroll += o.width;
            }
            _li.parent().animate(o.dir == "left" ? { left: -_li_scroll} : { top: -_li_scroll }, o.amount);
        }

        //开始
        var move = setInterval(function () { goto(); }, o.speed);
        _li.parent().hover(function () {
            clearInterval(move);
        }, function () {
            clearInterval(move);
            move = setInterval(function () { goto(); }, o.speed);
        });
    });
};

//时间
function get_time1() {

    var date = new Date();
    var year = "", month = "", day = "", week = "", hour = "", minute = "", second = "";
    year = date.getYear();
    month = add_zero1(date.getMonth() + 1);
    day = add_zero1(date.getDate());
    week = date.getDay();
    switch (date.getDay()) {
        case 0: val = "星期天"; break
        case 1: val = "星期一"; break
        case 2: val = "星期二"; break
        case 3: val = "星期三"; break
        case 4: val = "星期四"; break
        case 5: val = "星期五"; break
        case 6: val = "星期六"; break
    }
    hour = add_zero1(date.getHours());
    minute = add_zero1(date.getMinutes());
    second = add_zero1(date.getSeconds());
    document.write(year + "年" + month + "月" + day + "日 " + " " + val);
}
function add_zero1(temp) {
    if (temp < 10) return "0" + temp;
    else return temp;
}

//焦点图片
$.fn.imgtransition = function (o) {
    var defaults = {
        speed: 5000,
        animate: 1000,
        stay: 10000
    };
    o = $.extend(defaults, o);
    return this.each(function (i) {
        var arr_e = $("li", this);
        arr_e.css({ position: "absolute" });
        arr_e.parent().css({ margin: "0", padding: "0", "list-style": "none", overflow: "hidden" });
        //按钮
        for (var i = 0; i < arr_e.length; i++) {
            $(".fbtn").html($(".fbtn").html() + "<a class="fbtn_a_n" href="javascript:void(0)"></a>");
        }
        $(".fbtn a").eq(0).addClass("fbtn_a_h");
        //        $(".fbtn").offset({ "top": this.height() - $(".fbtn").height() - 20, "left": this.width() - $(".fbtn").width() - 10 });
        $(".fbtn").width($(this).width() - 20).css("margin-top", $(this).height() - $(".fbtn").height() - 20);

        var active;
        var next;
        function shownext() {
            active = arr_e.filter(".active").length ? arr_e.filter(".active") : arr_e.first();
            next = active.next().length ? active.next() : arr_e.first();
            active.css({ "z-index": 9 });
            next.css({ opacity: 0.0, "z-index": 10 }).addClass('active').animate({ opacity: 1.0 }, o.animate, function () {
                active.removeClass('active').css({ "z-index": 8 });
            });
            $(".fbtn a").removeClass('fbtn_a_h');
            $(".fbtn a").eq(next.index()).addClass("fbtn_a_h");
        }
        arr_e.first().css({ "z-index": 9 });
        var fTimer;
        fTimer = setInterval(function () {
            shownext();
        }, o.speed);
        $(".fbtn &gt; a").click(function () {
            clearInterval(fTimer);
            arr_e.removeClass('active').css({ "z-index": 8 });
            active = arr_e.eq($(this).index()).addClass('active');
            active.css({ "z-index": 10 });
            next = active.next().length ? active.next() : arr_e.first();
            next.css({ "z-index": 9 });
            $(".fbtn a").removeClass('fbtn_a_h');
            $(".fbtn a").eq(active.index()).addClass("fbtn_a_h");
            setTimeout(fTimer = setInterval(function () {
                shownext();
            }, o.speed), stay);
        });
    });
};