//导航下拉开始
$(document).ready(function() {
    $('ul.navigationlist li').mousemove(function() {
        $(this).find('ul').slideDown(280); //you can give it a speed
    });
    $('ul.navigationlist li').mouseleave(function() {
        $(this).find('ul').slideUp(280);
    });
    $("#logo_main").scrollFix({
        zIndex: 1000
    });
});
//导航下拉结束

/*====scrool插件 开始====*/
;
(function($) {
    $.fn.scrollFix = function(options) {
        return this.each(function() {
            var opts = $.extend({}, $.fn.scrollFix.defaultOptions, options);
            var obj = $(this),
                base = this,
                selfTop = 0,
                selfLeft = 0,
                toTop = 0,
                parentOffsetLeft = 0,
                parentOffsetTop = 0,
                outerHeight,
                outerWidth,
                objWidth = 0,
                placeholder = jQuery('<div>'), //创建一个jquery对象
                optsTop = opts.distanceTop, //定义到顶部的高度
                endfix = 0; //开始停止固定的位置

            var originalPosition;
            var originalOffsetTop;
            var originalZIndex;
            var lastOffsetLeft = -1;
            var isUnfixed = true;
            //如果没有找到节点，不进行处理
            if (obj.length <= 0) {
                return;
            }
            if (lastOffsetLeft == -1) {
                originalZIndex = obj.css('z-index');
                position = obj.css('position');
                originalPosition = obj.css('position');

                originalOffsetTop = obj.css('top');
            }

            var zIndex = obj.css('zIndex');
            if (opts.zIndex != 0) {
                zIndex = opts.zIndex;
            }
            //获取相对定位或者绝对定位的父类
            var parents = obj.parent();
            var Position = parents.css('position');
            while (!/^relative|absolute$/i.test(Position)) { //检测浮动元素的父类元素定位为'relative'或者'absolute',是的话退出，否则的话，执行循环，继续寻找它的父类
                parents = parents.parent();
                Position = parents.css('position');
                if (/^body|html$/i.test(parents[0].tagName)) break; //假如父类元素的标签为body或者HTML，说明没有找到父类为以上的定位，退出循环
            }

            var ie6 = !-[1, ] && !window.XMLHttpRequest; //兼容IE6
            var resizeWindow = false;

            function resetScroll() {
                setUnfixed();
                selfTop = obj.offset().top; //对象距离顶部高度
                selfLeft = obj.offset().left; //对象距离左边宽度
                outerHeight = obj.outerHeight(); //对象高度
                outerHeight = parseFloat(outerHeight) + parseFloat(obj.css('marginBottom').replace(/auto/, 0));
                outerWidth = obj.outerWidth(); //对象外宽度
                objWidth = obj.width();
                var documentHeight = $(document).height(); //文档高度
                var startTop = $(opts.startTop), //开始浮动固定对象
                    startBottom = $(opts.startBottom),
                    toBottom, //停止滚动位置距离底部的高度
                    ScrollHeight; //对象滚动的高度

                //计算父类偏移值
                if (/^body|html$/i.test(parents[0].tagName)) { //当父类元素非body或者HTML时，说明找到了一个父类为'relative'或者'absolute'的元素，得出它的偏移高度
                    parentOffsetTop = 0, parentOffsetLeft = 0;
                } else {
                    parentOffsetLeft = parents.offset().left, parentOffsetTop = parents.offset().top;
                }

                // 计算父节点的上边到顶部距离
                // 如果 body 有 top 属性, 消除这些位移
                var bodyToTop = parseInt(jQuery('body').css('top'), 10);
                if (!isNaN(bodyToTop)) {
                    optsTop += bodyToTop;
                }
                //计算停在底部的距离
                if (!isNaN(opts.endPos)) {
                    toBottom = opts.endPos;
                } else {
                    toBottom = parseFloat(documentHeight - $(opts.endPos).offset().top);
                }
                //计算需要滚动的高度以及停止滚动的高度
                ScrollHeight = parseFloat(documentHeight - toBottom - optsTop), endfix = parseFloat(ScrollHeight - outerHeight);
                //计算顶部的距离值
                if (startTop[0]) {
                    var startTopOffset = startTop.offset(),
                        startTopPos = startTopOffset.top;
                    selfTop = startTopPos;
                }
                if (startBottom[0]) {
                    var startBottomOffset = startBottom.offset(),
                        startBottomPos = startBottomOffset.top,
                        startBottomHeight = startBottom.outerHeight();
                    selfTop = parseFloat(startBottomPos + startBottomHeight);
                }

                toTop = selfTop - optsTop;
                toTop = (toTop > 0) ? toTop : 0;

                var selfBottom = documentHeight - selfTop - outerHeight;
                //如果滚动停在底部的值不为0，并且自身到底部的高度小于上面这个值，不执行浮动固定
                if ((toBottom != 0) && (selfBottom <= toBottom)) {
                    return;
                }

            }

            function setUnfixed() {
                if (!isUnfixed) {
                    lastOffsetLeft = -1;
                    placeholder.css("display", "none");
                    obj.css({
                        'z-index': originalZIndex,
                        'width': '',
                        'position': originalPosition,
                        'left': '',
                        'top': originalOffsetTop,
                        'margin-left': ''
                    });
                    obj.removeClass('scrollfixed');
                    isUnfixed = true;
                }
            }

            function onScroll() {
                lastOffsetLeft = 1;
                var ScrollTop = $(window).scrollTop();
                if (opts.bottom != -1) {
                    ScrollTop = ScrollTop + $(window).height() - outerHeight - opts.bottom;
                }
                if (ScrollTop > toTop && (ScrollTop < endfix)) {
                    if (ie6) { //IE6则使用这个样式
                        obj.addClass(opts.baseClassName).css({
                            "z-index": zIndex,
                            "position": "absolute",
                            "top": opts.bottom == -1 ? ScrollTop + optsTop - parentOffsetTop : ScrollTop - parentOffsetTop,
                            "bottom": 'auto',
                            "left": selfLeft - parentOffsetLeft,
                            'width': objWidth
                        })
                    } else {
                        obj.addClass(opts.baseClassName).css({
                            "z-index": zIndex,
                            "position": "fixed",
                            "top": opts.bottom == -1 ? optsTop : '',
                            "bottom": opts.bottom == -1 ? '' : opts.bottom,
                            "left": selfLeft,
                            "width": objWidth
                        });
                    }
                    placeholder.css({
                        'height': outerHeight,
                        'width': outerWidth,
                        'display': 'block'
                    }).insertBefore(obj);
                } else if (ScrollTop >= endfix) {
                    obj.addClass(opts.baseClassName).css({
                        "z-index": zIndex,
                        "position": "absolute",
                        "top": endfix - parentOffsetTop + optsTop,
                        'bottom': '',
                        "left": selfLeft - parentOffsetLeft,
                        "width": objWidth
                    });
                    placeholder.css({
                        'height': outerHeight,
                        'width': outerWidth,
                        'display': 'block'
                    }).insertBefore(obj)
                } else {
                    obj.removeClass(opts.baseClassName).css({
                        "z-index": originalZIndex,
                        "position": "static",
                        "top": "",
                        "bottom": "",
                        "left": ""
                    });
                    placeholder.remove()
                }
            }
            var Timer = 0;
            // if (isUnfixed) {
            resetScroll();
            // }
            $(window).on("scroll", function() {
                if (Timer) {
                    clearTimeout(Timer);
                }
                Timer = setTimeout(onScroll, 0);
            });
            // 当发现调整屏幕大小时，重新执行代码
            $(window).on("resize", function() {
                if (Timer) {
                    clearTimeout(Timer);
                }
                Timer = setTimeout(function() {
                    isUnfixed = false;
                    resetScroll();
                    onScroll();
                }, 0);
            });
        })
    }
    $.fn.scrollFix.defaultOptions = {
        startTop: null, //滑到这个位置顶部时开始浮动，默认为空
        startBottom: null, //滑到这个位置末端开始浮动，默认为空
        distanceTop: 0, //固定在顶部的高度
        endPos: 0, //停靠在底部的位置，可以为jquery对象
        bottom: -1, //底部位置
        zIndex: 0, //z-index值
        baseClassName: 'scrollfixed' //开始固定时添加的类
    };
})(jQuery);
/*====scrool插件 结束====*/

/*==! Lazy Load 1.9.1 - MIT license - Copyright 2010-2013 Mika Tuupola ==*/
! function(a, b, c, d) {
    var e = a(b);
    a.fn.lazyload = function(f) {
        function g() {
            var b = 0;
            i.each(function() {
                var c = a(this);
                if (!j.skip_invisible || c.is(":visible"))
                    if (a.abovethetop(this, j) || a.leftofbegin(this, j));
                    else if (a.belowthefold(this, j) || a.rightoffold(this, j)) {
                    if (++b > j.failure_limit) return !1
                } else c.trigger("appear"), b = 0
            })
        }
        var h, i = this,
            j = {
                threshold: 0,
                failure_limit: 0,
                event: "scroll",
                effect: "show",
                container: b,
                data_attribute: "original",
                skip_invisible: !0,
                appear: null,
                load: null,
                placeholder: "data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB/AAffA0nNPuCLAAAAAElFTkSuQmCC"
            };
        return f && (d !== f.failurelimit && (f.failure_limit = f.failurelimit, delete f.failurelimit), d !== f.effectspeed && (f.effect_speed = f.effectspeed, delete f.effectspeed), a.extend(j, f)), h = j.container === d || j.container === b ? e : a(j.container), 0 === j.event.indexOf("scroll") && h.bind(j.event, function() {
            return g()
        }), this.each(function() {
            var b = this,
                c = a(b);
            b.loaded = !1, (c.attr("src") === d || c.attr("src") === !1) && c.is("img") && c.attr("src", j.placeholder), c.one("appear", function() {
                if (!this.loaded) {
                    if (j.appear) {
                        var d = i.length;
                        j.appear.call(b, d, j)
                    }
                    a("<img />").bind("load", function() {
                        var d = c.attr("data-" + j.data_attribute);
                        c.hide(), c.is("img") ? c.attr("src", d) : c.css("background-image", "url('" + d + "')"), c[j.effect](j.effect_speed), b.loaded = !0;
                        var e = a.grep(i, function(a) {
                            return !a.loaded
                        });
                        if (i = a(e), j.load) {
                            var f = i.length;
                            j.load.call(b, f, j)
                        }
                    }).attr("src", c.attr("data-" + j.data_attribute))
                }
            }), 0 !== j.event.indexOf("scroll") && c.bind(j.event, function() {
                b.loaded || c.trigger("appear")
            })
        }), e.bind("resize", function() {
            g()
        }), /(?:iphone|ipod|ipad).*os 5/gi.test(navigator.appVersion) && e.bind("pageshow", function(b) {
            b.originalEvent && b.originalEvent.persisted && i.each(function() {
                a(this).trigger("appear")
            })
        }), a(c).ready(function() {
            g()
        }), this
    }, a.belowthefold = function(c, f) {
        var g;
        return g = f.container === d || f.container === b ? (b.innerHeight ? b.innerHeight : e.height()) + e.scrollTop() : a(f.container).offset().top + a(f.container).height(), g <= a(c).offset().top - f.threshold
    }, a.rightoffold = function(c, f) {
        var g;
        return g = f.container === d || f.container === b ? e.width() + e.scrollLeft() : a(f.container).offset().left + a(f.container).width(), g <= a(c).offset().left - f.threshold
    }, a.abovethetop = function(c, f) {
        var g;
        return g = f.container === d || f.container === b ? e.scrollTop() : a(f.container).offset().top, g >= a(c).offset().top + f.threshold + a(c).height()
    }, a.leftofbegin = function(c, f) {
        var g;
        return g = f.container === d || f.container === b ? e.scrollLeft() : a(f.container).offset().left, g >= a(c).offset().left + f.threshold + a(c).width()
    }, a.inviewport = function(b, c) {
        return !(a.rightoffold(b, c) || a.leftofbegin(b, c) || a.belowthefold(b, c) || a.abovethetop(b, c))
    }, a.extend(a.expr[":"], {
        "below-the-fold": function(b) {
            return a.belowthefold(b, {
                threshold: 0
            })
        },
        "above-the-top": function(b) {
            return !a.belowthefold(b, {
                threshold: 0
            })
        },
        "right-of-screen": function(b) {
            return a.rightoffold(b, {
                threshold: 0
            })
        },
        "left-of-screen": function(b) {
            return !a.rightoffold(b, {
                threshold: 0
            })
        },
        "in-viewport": function(b) {
            return a.inviewport(b, {
                threshold: 0
            })
        },
        "above-the-fold": function(b) {
            return !a.belowthefold(b, {
                threshold: 0
            })
        },
        "right-of-fold": function(b) {
            return a.rightoffold(b, {
                threshold: 0
            })
        },
        "left-of-fold": function(b) {
            return !a.rightoffold(b, {
                threshold: 0
            })
        }
    })
}(jQuery, window, document);
/*==Lazy Load 1.9.1 结束==*/