JS如下：
<script>
provinceArray = new Array("北京市","上海市","天津市","重庆市","河北省","山西省","内蒙古自治区","辽宁省","吉林省","黑龙江省","江苏省","浙江省","安徽省","福建省","江西省","山东省","河南省","湖北省","湖南省","广东省","广西壮族自治区","海南省","四川省","贵州省","云南省","西藏自治区","陕西省","甘肃省","宁夏回族自治区","青海省","新疆维吾尔族自治区","香港特别行政区","澳门特别行政区","台湾省","其它");
//定义 城市 数据数组
cityArray = new Array();
cityArray[0] = new Array("北京市","东城|西城|崇文|宣武|朝阳|丰台|石景山|海淀|门头沟|房山|通州|顺义|昌平|大兴|平谷|怀柔|密云|延庆");
cityArray[1] = new Array("上海市","黄浦|卢湾|徐汇|长宁|静安|普陀|闸北|虹口|杨浦|闵行|宝山|嘉定|浦东|金山|松江|青浦|南汇|奉贤|崇明");
cityArray[2] = new Array("天津市","和平|东丽|河东|西青|河西|津南|南开|北辰|河北|武清|红挢|塘沽|汉沽|大港|宁河|静海|宝坻|蓟县");
cityArray[3] = new Array("重庆市","万州|涪陵|渝中|大渡口|江北|沙坪坝|九龙坡|南岸|北碚|万盛|双挢|渝北|巴南|黔江|长寿|綦江|潼南|铜梁 |大足|荣昌|壁山|梁平|城口|丰都|垫江|武隆|忠县|开县|云阳|奉节|巫山|巫溪|石柱|秀山|酉阳|彭水|江津|合川|永川|南川");
cityArray[4] = new Array("河北省","石家庄|邯郸|邢台|保定|张家口|承德|廊坊|唐山|秦皇岛|沧州|衡水");
cityArray[5] = new Array("山西省","太原|大同|阳泉|长治|晋城|朔州|吕梁|忻州|晋中|临汾|运城");
cityArray[6] = new Array("内蒙古自治区","呼和浩特|包头|乌海|赤峰|呼伦贝尔盟|阿拉善盟|哲里木盟|兴安盟|乌兰察布盟|锡林郭勒盟|巴彦淖尔盟|伊克昭盟");
cityArray[7] = new Array("辽宁省","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");
cityArray[8] = new Array("吉林省","长春|吉林|四平|辽源|通化|白山|松原|白城|延边");
cityArray[9] = new Array("黑龙江省","哈尔滨|齐齐哈尔|牡丹江|佳木斯|大庆|绥化|鹤岗|鸡西|黑河|双鸭山|伊春|七台河|大兴安岭");
cityArray[10] = new Array("江苏省","南京|镇江|苏州|南通|扬州|盐城|徐州|连云港|常州|无锡|宿迁|泰州|淮安");
cityArray[11] = new Array("浙江省","杭州|宁波|温州|嘉兴|湖州|绍兴|金华|衢州|舟山|台州|丽水");
cityArray[12] = new Array("安徽省","合肥|芜湖|蚌埠|马鞍山|淮北|铜陵|安庆|黄山|滁州|宿州|池州|淮南|巢湖|阜阳|六安|宣城|亳州");
cityArray[13] = new Array("福建省","福州|厦门|莆田|三明|泉州|漳州|南平|龙岩|宁德");
cityArray[14] = new Array("江西省","南昌市|景德镇|九江|鹰潭|萍乡|新馀|赣州|吉安|宜春|抚州|上饶");
cityArray[15] = new Array("山东省","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");
cityArray[16] = new Array("河南省","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|济源");
cityArray[17] = new Array("湖北省","武汉|宜昌|荆州|襄樊|黄石|荆门|黄冈|十堰|恩施|潜江|天门|仙桃|随州|咸宁|孝感|鄂州");
cityArray[18] = new Array("湖南省","长沙|常德|株洲|湘潭|衡阳|岳阳|邵阳|益阳|娄底|怀化|郴州|永州|湘西|张家界");
cityArray[19] = new Array("广东省","广州|深圳|珠海|汕头|东莞|中山|佛山|韶关|江门|湛江|茂名|肇庆|惠州|梅州|汕尾|河源|阳江|清远|潮州|揭阳|云浮");
cityArray[20] = new Array("广西壮族自治区","南宁|柳州|桂林|梧州|北海|防城港|钦州|贵港|玉林|南宁地区|柳州地区|贺州|百色|河池");
cityArray[21] = new Array("海南省","海口|三亚");
cityArray[22] = new Array("四川省","成都|绵阳|德阳|自贡|攀枝花|广元|内江|乐山|南充|宜宾|广安|达川|雅安|眉山|甘孜|凉山|泸州");
cityArray[23] = new Array("贵州省","贵阳|六盘水|遵义|安顺|铜仁|黔西南|毕节|黔东南|黔南");
cityArray[24] = new Array("云南省","昆明|大理|曲靖|玉溪|昭通|楚雄|红河|文山|思茅|西双版纳|保山|德宏|丽江|怒江|迪庆|临沧");
cityArray[25] = new Array("西藏自治区","拉萨|日喀则|山南|林芝|昌都|阿里|那曲");
cityArray[26] = new Array("陕西省","西安|宝鸡|咸阳|铜川|渭南|延安|榆林|汉中|安康|商洛");
cityArray[27] = new Array("甘肃省","兰州|嘉峪关|金昌|白银|天水|酒泉|张掖|武威|定西|陇南|平凉|庆阳|临夏|甘南");
cityArray[28] = new Array("宁夏回族自治区","银川|石嘴山|吴忠|固原");
cityArray[29] = new Array("青海省","西宁|海东|海南|海北|黄南|玉树|果洛|海西");
cityArray[30] = new Array("新疆维吾尔族自治区","乌鲁木齐|石河子|克拉玛依|伊犁|巴音郭勒|昌吉|克孜勒苏柯尔克孜|博尔塔拉|吐鲁番|哈密|喀什|和田|阿克苏");
cityArray[31] = new Array("香港特别行政区","香港特别行政区");
cityArray[32] = new Array("澳门特别行政区","澳门特别行政区");
cityArray[33] = new Array("台湾省","台北|高雄|台中|台南|屏东|南投|云林|新竹|彰化|苗栗|嘉义|花莲|桃园|宜兰|基隆|台东|金门|马祖|澎湖");
cityArray[34] = new Array("其它","北美洲|南美洲|亚洲|非洲|欧洲|大洋洲");
function initProvince(){
document.all.selProvince.length = 0 ;
for(i=0; i<provinceArray.length; i++){
document.all.selProvince.options[i] = new Option(provinceArray[i],provinceArray[i]);
}
getCity(document.all.selProvince.options[0].value)
}
function getCity(currProvince)
{
//当前 所选择 的 省
var currProvincecurrProvince = currProvince;
var i,j,k;
//清空 城市 下拉选单
document.all.selCity.length = 0 ;
for (i = 0 ;i <cityArray.length;i++)
{
//得到 当前省 在 城市数组中的位置
if(cityArray[i][0]==currProvince)
{
//得到 当前省 所辖制的 地市
tmpcityArray = cityArray[i][1].split("|")
for(j=0;j<tmpcityArray.length;j++)
{
//填充 城市 下拉选单
document.all.selCity.options[document.all.selCity.length] = new Option(tmpcityArray[j],tmpcityArray[j]);
}
}
}
}
</script>