.net和javascript 结合 ,生成三级联动无刷新下拉菜单【修改版】1

这个是修改版本：
首先修改了area.js

// 国家列表
var nation = new Array();
nation[ 0 ] = new Array(' 0 ',' 1 ','阿尔巴尼亚');
nation[ 1 ] = new Array(' 0 ',' 2 ','阿尔及利亚');
nation[ 2 ] = new Array(' 0 ',' 3 ','阿富汗');
nation[ 3 ] = new Array(' 0 ',' 4 ','阿根廷');
nation[ 4 ] = new Array(' 0 ',' 5 ','阿拉伯联合酋长国');
nation[ 5 ] = new Array(' 0 ',' 6 ','阿鲁巴');
nation[ 6 ] = new Array(' 0 ',' 7 ','阿曼');
nation[ 7 ] = new Array(' 0 ',' 8 ','阿塞拜疆');
nation[ 8 ] = new Array(' 0 ',' 9 ','埃及');
nation[ 9 ] = new Array(' 0 ',' 10 ','埃塞俄比亚');
nation[ 10 ] = new Array(' 0 ',' 11 ','爱尔兰');
nation[ 11 ] = new Array(' 0 ',' 12 ','爱沙尼亚');
nation[ 12 ] = new Array(' 0 ',' 13 ','安道尔');
nation[ 13 ] = new Array(' 0 ',' 14 ','安哥拉');
nation[ 14 ] = new Array(' 0 ',' 15 ','安圭拉岛');
nation[ 15 ] = new Array(' 0 ',' 16 ','安提瓜和巴布达');
nation[ 16 ] = new Array(' 0 ',' 17 ','奥地利');
nation[ 17 ] = new Array(' 0 ',' 18 ','澳大利亚');
nation[ 18 ] = new Array(' 0 ',' 19 ','澳门特别行政区');
nation[ 19 ] = new Array(' 0 ',' 20 ','巴巴多斯');
nation[ 20 ] = new Array(' 0 ',' 21 ','巴布亚新几内亚');
nation[ 21 ] = new Array(' 0 ',' 22 ','巴哈马');
nation[ 22 ] = new Array(' 0 ',' 23 ','巴基斯坦');
nation[ 23 ] = new Array(' 0 ',' 24 ','巴拉圭');
nation[ 24 ] = new Array(' 0 ',' 25 ','巴林');
nation[ 25 ] = new Array(' 0 ',' 26 ','巴拿马');
nation[ 26 ] = new Array(' 0 ',' 27 ','巴西');
nation[ 27 ] = new Array(' 0 ',' 28 ','白俄罗斯');
nation[ 28 ] = new Array(' 0 ',' 29 ','百慕大群岛');
nation[ 29 ] = new Array(' 0 ',' 30 ','保加利亚');
nation[ 30 ] = new Array(' 0 ',' 31 ','北马里亚纳群岛');
nation[ 31 ] = new Array(' 0 ',' 32 ','贝宁');
nation[ 32 ] = new Array(' 0 ',' 33 ','比利时');
nation[ 33 ] = new Array(' 0 ',' 34 ','冰岛');
nation[ 34 ] = new Array(' 0 ',' 35 ','波多黎各');
nation[ 35 ] = new Array(' 0 ',' 36 ','波兰');
nation[ 36 ] = new Array(' 0 ',' 37 ','波斯尼亚和黑塞哥维那');
nation[ 37 ] = new Array(' 0 ',' 38 ','玻利维亚');
nation[ 38 ] = new Array(' 0 ',' 39 ','伯利兹');
nation[ 39 ] = new Array(' 0 ',' 40 ','博茨瓦纳');
nation[ 40 ] = new Array(' 0 ',' 41 ','不丹');

// 省份列表
var province = new Array();
province[ 0 ] = new Array(' 236 ',' 238 ','安徽');
province[ 1 ] = new Array(' 236 ',' 2948 ','澳门');
province[ 2 ] = new Array(' 236 ',' 239 ','北京');
province[ 3 ] = new Array(' 236 ',' 241 ','福建');
province[ 4 ] = new Array(' 236 ',' 242 ','甘肃');
province[ 5 ] = new Array(' 236 ',' 243 ','广东');
province[ 6 ] = new Array(' 236 ',' 244 ','广西');
province[ 7 ] = new Array(' 236 ',' 245 ','贵州');
province[ 8 ] = new Array(' 236 ',' 246 ','海南');
province[ 9 ] = new Array(' 236 ',' 247 ','河北');
province[ 10 ] = new Array(' 236 ',' 248 ','河南');
province[ 11 ] = new Array(' 236 ',' 249 ','黑龙江');
province[ 12 ] = new Array(' 236 ',' 250 ','湖北');
province[ 13 ] = new Array(' 236 ',' 251 ','湖南');
province[ 14 ] = new Array(' 236 ',' 252 ','吉林');
province[ 15 ] = new Array(' 236 ',' 253 ','江苏');
province[ 16 ] = new Array(' 236 ',' 254 ','江西');
province[ 17 ] = new Array(' 236 ',' 255 ','辽宁');
province[ 18 ] = new Array(' 236 ',' 256 ','内蒙古');
province[ 19 ] = new Array(' 236 ',' 257 ','宁夏');
province[ 20 ] = new Array(' 236 ',' 258 ','青海');
province[ 21 ] = new Array(' 236 ',' 259 ','山东');
province[ 22 ] = new Array(' 236 ',' 260 ','山西');
province[ 23 ] = new Array(' 236 ',' 261 ','陕西');
province[ 24 ] = new Array(' 236 ',' 262 ','上海');
province[ 25 ] = new Array(' 236 ',' 263 ','四川');
province[ 26 ] = new Array(' 236 ',' 2949 ','台湾');
province[ 27 ] = new Array(' 236 ',' 264 ','天津');
province[ 28 ] = new Array(' 236 ',' 265 ','西藏');
province[ 29 ] = new Array(' 236 ',' 2947 ','香港');
province[ 30 ] = new Array(' 236 ',' 266 ','新疆');
province[ 31 ] = new Array(' 236 ',' 267 ','云南');
province[ 32 ] = new Array(' 236 ',' 268 ','浙江');
province[ 33 ] = new Array(' 236 ',' 240 ','重庆');

// 市级列表
var city = new Array();
city[ 0 ] = new Array(' 251 ',' 1645 ','永州',' 425000 ',' 0746 ');
city[ 1 ] = new Array(' 263 ',' 2468 ','广元',' 628000 ',' 0839 ');
city[ 2 ] = new Array(' 240 ',' 2946 ','万州区',' 401420 ',' 023 ');
city[ 3 ] = new Array(' 2947 ',' 2950 ','湾仔区','',' 00852 ');
city[ 4 ] = new Array(' 2947 ',' 2951 ','东区','',' 00852 ');
city[ 5 ] = new Array(' 2947 ',' 2952 ','中西区','',' 00852 ');
city[ 6 ] = new Array(' 2947 ',' 2953 ','南 区','',' 00852 ');
city[ 7 ] = new Array(' 2947 ',' 2954 ','北 区','',' 00852 ');
city[ 8 ] = new Array(' 2947 ',' 2955 ','九龙城区','',' 00852 ');
city[ 9 ] = new Array(' 2949 ',' 2956 ','台北市',' 222 ',' 2 ');
city[ 10 ] = new Array(' 2949 ',' 2957 ','高雄市',' 800 ',' 7 ');
city[ 11 ] = new Array(' 2949 ',' 2958 ','台中市',' 400 ',' 42 ');
city[ 12 ] = new Array(' 2949 ',' 2959 ','台南市',' 700 ',' 62 ');
city[ 13 ] = new Array(' 2949 ',' 2960 ','基隆市',' 200 ',' 32 ');
city[ 14 ] = new Array(' 2949 ',' 2961 ','新竹市',' 300 ',' 35 ');
city[ 15 ] = new Array(' 2949 ',' 2962 ','嘉义市',' 600 ',' 52 ');
city[ 16 ] = new Array(' 2949 ',' 2963 ','台北县',' 222 ',' 2 ');
city[ 17 ] = new Array(' 2949 ',' 2964 ','宜兰县','','');
city[ 18 ] = new Array(' 2949 ',' 2965 ','桃园县','','');
city[ 19 ] = new Array(' 2949 ',' 2966 ','新竹县',' 300 ',' 35 ');
city[ 20 ] = new Array(' 2949 ',' 2967 ','苗栗县','','');
city[ 21 ] = new Array(' 2949 ',' 2968 ','台中县',' 400 ',' 42 ');
city[ 22 ] = new Array(' 2949 ',' 2975 ','高雄县',' 800 ',' 7 ');
city[ 23 ] = new Array(' 2949 ',' 2970 ','彰化县','','');
city[ 24 ] = new Array(' 2949 ',' 2971 ','南投县','','');
city[ 25 ] = new Array(' 2949 ',' 2972 ','云林县','','');
city[ 26 ] = new Array(' 2949 ',' 2973 ','嘉义县',' 600 ',' 52 ');
city[ 27 ] = new Array(' 2949 ',' 2974 ','台南县',' 700 ',' 62 ');
city[ 28 ] = new Array(' 2949 ',' 2976 ','屏东县','','');
city[ 29 ] = new Array(' 2949 ',' 2977 ','台东县','','');
city[ 30 ] = new Array(' 2949 ',' 2978 ','花莲县','','');
city[ 31 ] = new Array(' 2949 ',' 2979 ','澎湖县','','');
city[ 32 ] = new Array(' 2947 ',' 2982 ','观塘区','',' 00852 ');
city[ 33 ] = new Array(' 2947 ',' 2983 ','油尖旺区','',' 00852 ');
city[ 34 ] = new Array(' 2947 ',' 2984 ','深水埗区','',' 00852 ');
city[ 35 ] = new Array(' 2947 ',' 2985 ','葵青区','',' 00852 ');
city[ 36 ] = new Array(' 2947 ',' 2986 ','沙田区','',' 00852 ');
city[ 37 ] = new Array(' 2947 ',' 2987 ','黄大仙区','',' 00852 ');
city[ 38 ] = new Array(' 2947 ',' 2988 ','荃湾区','',' 00852 ');
city[ 39 ] = new Array(' 2947 ',' 2989 ','元朗区','',' 00852 ');
city[ 40 ] = new Array(' 2947 ',' 2990 ','屯门区','',' 00852 ');
city[ 41 ] = new Array(' 2947 ',' 2991 ','离岛区','',' 00852 ');
city[ 42 ] = new Array(' 2947 ',' 2992 ','西贡区','',' 00852 ');
city[ 43 ] = new Array(' 2947 ',' 2993 ','大埔区','',' 00852 ');
city[ 44 ] = new Array(' 2948 ',' 2994 ','澳门半岛','',' 00853 ');
city[ 45 ] = new Array(' 2948 ',' 2995 ','凼仔','',' 00853 ');
city[ 46 ] = new Array(' 2948 ',' 2996 ','路环','',' 00853 ');
city[ 47 ] = new Array(' 238 ',' 272 ','安庆',' 246000 ',' 0556 ');
city[ 48 ] = new Array(' 238 ',' 273 ','蚌埠',' 233000 ',' 0552 ');
city[ 49 ] = new Array(' 238 ',' 274 ','巢湖',' 238000 ',' 0565 ');
city[ 50 ] = new Array(' 238 ',' 275 ','池州','','');
city[ 51 ] = new Array(' 238 ',' 276 ','滁州',' 239000 ',' 0550 ');
city[ 52 ] = new Array(' 238 ',' 277 ','阜阳',' 236000 ',' 0558 ');
city[ 53 ] = new Array(' 238 ',' 278 ','合肥',' 230000 ',' 0551 ');
city[ 54 ] = new Array(' 238 ',' 279 ','淮北',' 235000 ',' 0561 ');
city[ 55 ] = new Array(' 238 ',' 280 ','淮南',' 232000 ',' 0554 ');
city[ 56 ] = new Array(' 238 ',' 281 ','黄山',' 245000 ',' 0559 ');
city[ 57 ] = new Array(' 238 ',' 282 ','六安',' 237000 ',' 0564 ');
city[ 58 ] = new Array(' 238 ',' 283 ','马鞍山',' 243000 ',' 0555 ');
city[ 59 ] = new Array(' 238 ',' 284 ','宿州',' 234000 ',' 0557 ');
city[ 60 ] = new Array(' 238 ',' 285 ','铜陵',' 244000 ',' 0562 ');
city[ 61 ] = new Array(' 238 ',' 286 ','芜湖',' 241000 ',' 0553 ');
city[ 62 ] = new Array(' 238 ',' 287 ','宣城',' 242000 ',' 0563 ');
city[ 63 ] = new Array(' 238 ',' 288 ','亳州',' 236802 ','');
city[ 64 ] = new Array(' 239 ',' 289 ','东城区',' 100007 ',' 010 ');
city[ 65 ] = new Array(' 241 ',' 290 ','福州',' 350000 ',' 0591 ');
city[ 66 ] = new Array(' 241 ',' 291 ','龙岩',' 364000 ',' 0597 ');
city[ 67 ] = new Array(' 241 ',' 292 ','南平',' 353000 ',' 0599 ');
city[ 68 ] = new Array(' 241 ',' 293 ','宁德',' 352100 ',' 0593 ');
city[ 69 ] = new Array(' 241 ',' 294 ','莆田',' 351100 ',' 0594 ');
city[ 70 ] = new Array(' 241 ',' 295 ','泉州',' 362000 ',' 0595 ');
city[ 71 ] = new Array(' 241 ',' 296 ','三明',' 365000 ',' 0598 ');
city[ 72 ] = new Array(' 241 ',' 297 ','厦门',' 361000 ',' 0592 ');
city[ 73 ] = new Array(' 241 ',' 298 ','漳州',' 363000 ',' 0596 ');
city[ 74 ] = new Array(' 242 ',' 299 ','白银',' 730900 ',' 0943 ');
city[ 75 ] = new Array(' 242 ',' 300 ','定西',' 743000 ',' 0932 ');
city[ 76 ] = new Array(' 242 ',' 301 ','甘南藏族自治州',' 747000 ',' 09411 ');
city[ 77 ] = new Array(' 242 ',' 302 ','嘉峪关',' 735100 ',' 0937 ');
city[ 78 ] = new Array(' 242 ',' 303 ','金昌',' 733000 ',' 0935 ');
city[ 79 ] = new Array(' 242 ',' 304 ','酒泉',' 735000 ',' 0937 ');
city[ 80 ] = new Array(' 242 ',' 305 ','兰州',' 730000 ',' 0931 ');
city[ 81 ] = new Array(' 242 ',' 306 ','临夏回族自治州',' 731800 ',' 09401 ');
city[ 82 ] = new Array(' 242 ',' 307 ','陇南','','');
city[ 83 ] = new Array(' 242 ',' 308 ','平凉',' 744000 ',' 0943 ');
city[ 84 ] = new Array(' 242 ',' 309 ','庆阳',' 745100 ',' 09441 ');
city[ 85 ] = new Array(' 242 ',' 310 ','天水',' 741000 ',' 0938 ');
city[ 86 ] = new Array(' 242 ',' 311 ','武威',' 733000 ','');
city[ 87 ] = new Array(' 242 ',' 312 ','张掖',' 734000 ',' 0936 ');
city[ 88 ] = new Array(' 243 ',' 313 ','潮州',' 515600 ',' 0768 ');
city[ 89 ] = new Array(' 243 ',' 314 ','东莞',' 511700 ',' 0769 ');
city[ 90 ] = new Array(' 243 ',' 315 ','佛山',' 528000 ',' 0757 ');
city[ 91 ] = new Array(' 243 ',' 316 ','广州',' 510000 ',' 020 ');
city[ 92 ] = new Array(' 243 ',' 317 ','河源',' 517000 ',' 0762 ');
city[ 93 ] = new Array(' 243 ',' 318 ','惠州',' 516000 ',' 0752 ');
city[ 94 ] = new Array(' 243 ',' 319 ','江门',' 529000 ',' 0750 ');
city[ 95 ] = new Array(' 243 ',' 320 ','揭阳',' 515500 ',' 0663 ');
city[ 96 ] = new Array(' 243 ',' 321 ','茂名',' 525000 ',' 0668 ');
city[ 97 ] = new Array(' 243 ',' 322 ','梅州',' 514000 ',' 0753 ');
city[ 98 ] = new Array(' 243 ',' 323 ','清远',' 511500 ',' 0763 ');
city[ 99 ] = new Array(' 243 ',' 324 ','汕头',' 515000 ',' 0754 ');
city[ 100 ] = new Array(' 243 ',' 325 ','汕尾',' 516600 ',' 0660 ');
city[ 101 ] = new Array(' 253 ',' 25353 ','南京',' 2262626 ',' 025 ');
city[ 102 ] = new Array(' 253 ',' 25354 ','苏州',' 215100 ',' 0512 ');
city[ 103 ] = new Array(' 253 ',' 25355 ','无锡',' 215000 ',' 0510 ');
city[ 104 ] = new Array(' 253 ',' 25356 ','南通',' 226262 ',' 0513 ');
city[ 105 ] = new Array(' 253 ',' 25357 ','扬州',' 222222 ',' 025 ');
city[ 106 ] = new Array(' 253 ',' 25358 ','泰州',' 2262626 ',' 025 ');
city[ 107 ] = new Array(' 253 ',' 25359 ','淮阴',' 2262626 ',' 025 ');
city[ 108 ] = new Array(' 253 ',' 25360 ','连云港',' 2262626 ',' 025 ');

var region = new Array();
region[ 0 ] = new Array(' 1645 ',' 164545 ','汕尾1',' 516600 ',' 0660 ');
region[ 1 ] = new Array(' 2468 ',' 246868 ','汕尾2',' 516600 ',' 0660 ');
region[ 2 ] = new Array(' 2946 ',' 294646 ','汕尾3',' 516600 ',' 0660 ');
region[ 3 ] = new Array(' 316 ',' 31616 ','汕尾4',' 516600 ',' 0660 ');
region[ 4 ] = new Array(' 325 ',' 32525 ','汕尾5',' 516600 ',' 0660 ');

region[ 5 ] = new Array(' 25356 ',' 295852 ','南通',' 516600 ',' 0660 ');
region[ 6 ] = new Array(' 25356 ',' 295853 ','启东',' 516600 ',' 0660 ');
region[ 7 ] = new Array(' 25356 ',' 295854 ','海门',' 516600 ',' 0660 ');
region[ 8 ] = new Array(' 25356 ',' 295855 ','海安',' 516600 ',' 0660 ');
region[ 9 ] = new Array(' 25356 ',' 295856 ','通州',' 516600 ',' 0660 ');
region[ 10 ] = new Array(' 25356 ',' 295857 ','如皋',' 516600 ',' 0660 ');

var PostCode,TelCode;
PostCode = '';
TelCode = '';
function CreateNationID(targForm){ // 生成国家级分类
var targ = targForm.NationID;
targ.length = 0 ;
targ.options[targ.length] = new Option('选择国家',' 0 ');
for (i = 0 ; i < nation.length; i ++ ){
targ.options[targ.length] = new Option(nation[i][ 2 ], nation[i][ 1 ]);
}
targ.selectedIndex = 236 // 选定中国
}

function CreateProvinceID(targForm){ // 生成省级分类 targForm为目标表单
var parent = targForm.NationID;
var subfield = targForm.ProvinceID;
var classid;
if (parent.length > 0 )
classid = parent.options[parent.selectedIndex].value
else
classid = parent.value;
subfield.length = 0 ;
subfield.options[subfield.length] = new Option('选择省份',' 0 ');
for (i = 0 ; i < province.length; i ++ ){
if (province[i][ 0 ] == classid){
subfield.options[subfield.length] = new Option(province[i][ 2 ], province[i][ 1 ]);
}
}
}

function CreateCityID(targForm){ // 生成市级分类
var subfield = targForm.CityID;
var classid = targForm.ProvinceID.options[targForm.ProvinceID.selectedIndex].value;
subfield.length = 0 ;
subfield.options[subfield.length] = new Option('选择城市',' 0 ');
for (i = 0 ; i < city.length; i ++ ){
if (city[i][ 0 ] == classid){
subfield.options[subfield.length] = new Option(city[i][ 2 ], city[i][ 1 ]);
}
}
}

function CreateCountyID(targForm){ // 生成区县级分类
var subfield = targForm.CountyID;
var classid = targForm.CityID.options[targForm.CityID.selectedIndex].value;
subfield.length = 0 ;
subfield.options[subfield.length] = new Option('选择区县',' 0 ');
for (i = 0 ; i < county.length; i ++ ){
if (county[i][ 0 ] == classid){
subfield.options[subfield.length] = new Option(county[i][ 2 ], county[i][ 1 ]);
}
}
}

function CreatePostTelCode(targForm) { // 生成邮编、区号
var classid = targForm.CityID.options[targForm.CityID.selectedIndex].value;
for (i = 0 ; i < city.length; i ++ ){
if (city[i][ 1 ] == classid){
PostCode = city[i][ 3 ];
TelCode = city[i][ 4 ];
break ;
}
}
}

添加了一个叫region的数组