Jquery动画效果（混合）

1.图片随滚动条滚动

代码：

var menuYloc = $("#right").offset().top;
              $(window).scroll(function () {
                  var offsetTop = menuYloc + $(window).scrollTop() + "px";
                  $("#right").animate({ top: offsetTop }, { duration: 600, queue: false });
              }); 

2.鼠标悬浮到图片放大，移出图片变回原来大小

代码：

    //要悬浮的图片
   //鼠标移入
 $(".book ul li img").mouseenter(function(){
               var wValue=1.5 * $(this).width();
               var hValue=1.5 * $(this).height();
               $(this).animate({width: wValue,
                               height: hValue,
                               left:("-"+(0.5 * $(this).width())/2),
                               top:("-"+(0.5 * $(this).height())/2)}, 1000);
     //鼠标移除
   }).mouseleave(function(){
               $(this).animate({width: "200",
                                            height: "200",
                                            left:"0px",
                                            top:"0px"}, 1000 );
           });  

3.向Select option下拉框赋值（两级数据）

图1：

图2：

代码：

    var pro = ["北京","天津","上海","重庆","河北","山西","辽宁","吉林","黑龙江","江苏","浙江","安徽","福建","江西","山东","河南","湖北","湖南","广东","海南","四川","贵州","云南","陕西","甘肃","青海","内蒙古","广西","西藏","宁夏","新疆维吾尔自治区","香港","澳门","台湾"];
       var city = {北京:["东城区","西城区","崇文区","宣武区","朝阳区","海淀区","丰台区","石景山区","房山区","通州区","顺义区","昌平区","大兴区","怀柔区","平谷区","门头沟区","密云县","延庆县"],天津:["和平区","河东区","河西区","南开区","河北区","红桥区","东丽区","西青区","北辰区","津南区","武清区","宝坻区","滨海新区","静海县","宁河县","蓟县"],上海:["黄浦区","卢湾区","徐汇区","长宁区","静安区","普陀区","闸北区","虹口区","杨浦区","闵行区","宝山区","嘉定区","浦东新区","金山区","松江区","青浦区","奉贤区","崇明县"],重庆:["渝中区","大渡口区","江北区","南岸区","北碚区","渝北区","巴南区","长寿区","双桥区","沙坪坝区","万盛区","万州区","涪陵区","黔江区","永川区","合川区","江津区","九龙坡区","南川区","綦江县","潼南县","荣昌县","璧山县","大足县","铜梁县","梁平县","开县","忠县","城口县","垫江县","武隆县","丰都县","奉节县","云阳县","巫溪县","巫山县","石柱土家族自治县","秀山土家族苗族自治县","酉阳土家族苗族自治县","彭水苗族土家族自治县"],河北:["石家庄","唐山","秦皇岛","邯郸","邢台","保定","张家口","承德","沧州","廊坊","衡水"],山西:["太原","大同","阳泉","长治","晋城","朔州","晋中","运城","忻州","临汾","吕梁"],辽宁:["沈阳","大连","鞍山","抚顺","本溪","丹东","锦州","营口","阜新","辽阳","盘锦","铁岭","朝阳","葫芦岛"],吉林:["长春","吉林","四平","辽源","通化","白山","松原","白城","延边朝鲜族自治州"],黑龙江:["哈尔滨","齐齐哈尔","鹤岗","双鸭山","鸡西","大庆","伊春","牡丹江","佳木斯","七台河","黑河","绥化","大兴安岭"],江苏:["南京","苏州","无锡","常州","镇江","南通","泰州","扬州","盐城","连云港","徐州","淮安","宿迁"],浙江:["杭州","宁波","温州","嘉兴","湖州","绍兴","金华","衢州","舟山","台州","丽水"],安徽:["合肥","芜湖","蚌埠","淮南","马鞍山","淮北","铜陵","安庆","黄山","滁州","阜阳","宿州","巢湖","六安","亳州","池州","宣城"],福建:["福州","厦门","莆田","三明","泉州","漳州","南平","龙岩","宁德"],江西:["南昌","景德镇","萍乡","九江","新余","鹰潭","赣州","吉安","宜春","抚州","上饶"],山东:["济南","青岛","淄博","枣庄","东营","烟台","潍坊","济宁","泰安","威海","日照","莱芜","临沂","德州","聊城","滨州","菏泽"],河南:["郑州","开封","洛阳","平顶山","安阳","鹤壁","新乡","焦作","濮阳","许昌","漯河","三门峡","南阳","商丘","信阳","周口","驻马店"],湖北:["武汉","黄石","十堰","荆州","宜昌","襄樊","鄂州","荆门","孝感","黄冈","咸宁","随州","恩施"],湖南:["长沙","株洲","湘潭","衡阳","邵阳","岳阳","常德","张家界","益阳","郴州","永州","怀化","娄底","湘西"],广东:["广州","深圳","珠海","汕头","韶关","佛山","江门","湛江","茂名","肇庆","惠州","梅州","汕尾","河源","阳江","清远","东莞","中山","潮州","揭阳","云浮"],海南:["海口","三亚"],四川:["成都","自贡","攀枝花","泸州","德阳","绵阳","广元","遂宁","内江","乐山","南充","眉山","宜宾","广安","达州","雅安","巴中","资阳","阿坝","甘孜","凉山"],贵州:["贵阳","六盘水","遵义","安顺","铜仁","毕节","黔西南","黔东南","黔南"],云南:["昆明","曲靖","玉溪","保山","昭通","丽江","普洱","临沧","德宏","怒江","迪庆","大理","楚雄","红河","文山","西双版纳"],陕西:["西安","铜川","宝鸡","咸阳","渭南","延安","汉中","榆林","安康","商洛"],甘肃:["兰州","嘉峪关","金昌","白银","天水","武威","酒泉","张掖","庆阳","平凉","定西","陇南","临夏","甘南"],青海:["西宁","海东","海北","海南","黄南","果洛","玉树","海西"],内蒙古:["呼和浩特","包头","乌海","赤峰","通辽","鄂尔多斯","呼伦贝尔","巴彦淖尔","乌兰察布","锡林郭勒盟","兴安盟","阿拉善盟"],广西:["南宁","柳州","桂林","梧州","北海","防城港","钦州","贵港","玉林","百色","贺州","河池","来宾","崇左"],西藏:["拉萨","那曲","昌都","林芝","山南","日喀则","阿里"],宁夏:["银川","石嘴山","吴忠","固原","中卫"],新疆维吾尔自治区:["乌鲁木齐","克拉玛依","吐鲁番","哈密","和田","阿克苏","喀什","克孜勒苏","巴音郭楞","昌吉","博尔塔拉","伊犁","塔城","阿勒泰"],香港:["香港岛","九龙东","九龙西","新界东","新界西"],澳门:["澳门半岛","离岛"],台湾:["台北","高雄","基隆","新竹","台中","嘉义","台南市"]};

       //向所在地区添加数据（图1）
        for(var i=0;i<pro.length;i++){
            $option=$("<option/>");
            $option.attr("value",pro[i]);
            $option.text(pro[i]);
            $("#province").append($option);
        }
        //选择的地区出现城市（图2）
        $("#province").click(function(){
            var citys=city[$(this).val()];
              $(this).parent().parent().find("#city").empty();
             for(var i=0;i<citys.length;i++){
                 $option=$("<option/>");
                 $option.attr("value",citys[i]);
                 $option.text(citys[i]);
                 $(this).parent().parent().find("#city").append($option);
             }
        })