function changeCountyForCity(_element, _county) {
    var cities = new Array();
    cities[0] = new Option("地區", "");
    
    if (_county == "台北市") {
        cities[ 1] = new Option("中正區", "中正區");
        cities[ 2] = new Option("大同區", "大同區");
        cities[ 3] = new Option("中山區", "中山區");
        cities[ 4] = new Option("松山區", "松山區");
        cities[ 5] = new Option("大安區", "大安區");
        cities[ 6] = new Option("萬華區", "萬華區");
        cities[ 7] = new Option("信義區", "信義區");
        cities[ 8] = new Option("士林區", "士林區");
        cities[ 9] = new Option("北投區", "北投區");
        cities[10] = new Option("內湖區", "內湖區");
        cities[11] = new Option("南港區", "南港區");
        cities[12] = new Option("文山區", "文山區");
    } else if (_county == "基隆市") {
        cities[ 1] = new Option("仁愛區", "仁愛區");
        cities[ 2] = new Option("信義區", "信義區");
        cities[ 3] = new Option("中正區", "中正區");
        cities[ 4] = new Option("中山區", "中山區");
        cities[ 5] = new Option("安樂區", "安樂區");
        cities[ 6] = new Option("暖暖區", "暖暖區");
        cities[ 7] = new Option("七堵區", "七堵區");
    } else if (_county == "台北縣") {
        cities[ 1] = new Option("萬里鄉", "萬里鄉");
        cities[ 2] = new Option("金山鄉", "金山鄉");
        cities[ 3] = new Option("板橋市", "板橋市");
        cities[ 4] = new Option("汐止市", "汐止市");
        cities[ 5] = new Option("深坑鄉", "深坑鄉");
        cities[ 6] = new Option("石碇鄉", "石碇鄉");
        cities[ 7] = new Option("瑞芳鎮", "瑞芳鎮");
        cities[ 8] = new Option("平溪鄉", "平溪鄉");
        cities[ 9] = new Option("雙溪鄉", "雙溪鄉");
        cities[10] = new Option("貢寮鄉", "貢寮鄉");
        cities[11] = new Option("新店市", "新店市");
        cities[12] = new Option("坪林鄉", "坪林鄉");
        cities[13] = new Option("烏來鄉", "烏來鄉");
        cities[14] = new Option("永和市", "永和市");
        cities[15] = new Option("中和市", "中和市");
        cities[16] = new Option("土城市", "土城市");
        cities[17] = new Option("三峽鎮", "三峽鎮");
        cities[18] = new Option("樹林市", "樹林市");
        cities[19] = new Option("鶯歌鎮", "鶯歌鎮");
        cities[20] = new Option("三重市", "三重市");
        cities[21] = new Option("新莊市", "新莊市");
        cities[22] = new Option("泰山鄉", "泰山鄉");
        cities[23] = new Option("林口鄉", "林口鄉");
        cities[24] = new Option("蘆洲市", "蘆洲市");
        cities[25] = new Option("五股鄉", "五股鄉");
        cities[26] = new Option("八里鄉", "八里鄉");
        cities[27] = new Option("淡水鎮", "淡水鎮");
        cities[28] = new Option("三芝鄉", "三芝鄉");
        cities[29] = new Option("石門鄉", "石門鄉");
    } else if (_county == "宜蘭縣") {
        cities[ 1] = new Option("宜蘭市", "宜蘭市");
        cities[ 2] = new Option("頭城鎮", "頭城鎮");
        cities[ 3] = new Option("礁溪鄉", "礁溪鄉");
        cities[ 4] = new Option("狀圍鄉", "狀圍鄉");
        cities[ 5] = new Option("員山鄉", "員山鄉");
        cities[ 6] = new Option("羅東鎮", "羅東鎮");
        cities[ 7] = new Option("三星鄉", "三星鄉");
        cities[ 8] = new Option("大同鄉", "大同鄉");
        cities[ 9] = new Option("五結鄉", "五結鄉");
        cities[10] = new Option("冬山鄉", "冬山鄉");
        cities[11] = new Option("蘇澳鄉", "蘇澳鄉");
        cities[12] = new Option("南澳鄉", "南澳鄉");
    } else if (_county == "桃園縣") {
        cities[ 1] = new Option("中壢市", "中壢市");
        cities[ 2] = new Option("平鎮市", "平鎮市");
        cities[ 3] = new Option("龍潭鄉", "龍潭鄉");
        cities[ 4] = new Option("楊梅鎮", "楊梅鎮");
        cities[ 5] = new Option("新屋鄉", "新屋鄉");
        cities[ 6] = new Option("觀音鄉", "觀音鄉");
        cities[ 7] = new Option("桃園市", "桃園市");
        cities[ 8] = new Option("龜山鄉", "龜山鄉");
        cities[ 9] = new Option("八德市", "八德市");
        cities[10] = new Option("大溪鎮", "大溪鎮");
        cities[11] = new Option("復興鄉", "復興鄉");
        cities[12] = new Option("大園鄉", "大園鄉");
        cities[13] = new Option("蘆竹鄉", "蘆竹鄉");
    } else if (_county == "新竹市") {
        cities[ 1] = new Option("新竹市", "新竹市");
    } else if (_county == "新竹縣") {
        cities[ 1] = new Option("竹北市", "竹北市");
        cities[ 2] = new Option("湖口鄉", "湖口鄉");
        cities[ 3] = new Option("新豐鄉", "新豐鄉");
        cities[ 4] = new Option("新埔鎮", "新埔鎮");
        cities[ 5] = new Option("關西鎮", "關西鎮");
        cities[ 6] = new Option("芎林鄉", "芎林鄉");
        cities[ 7] = new Option("寶山鄉", "寶山鄉");
        cities[ 8] = new Option("竹東鎮", "竹東鎮");
        cities[ 9] = new Option("五峰鄉", "五峰鄉");
        cities[10] = new Option("橫山鄉", "橫山鄉");
        cities[11] = new Option("尖石鄉", "尖石鄉");
        cities[12] = new Option("北埔鄉", "北埔鄉");
        cities[13] = new Option("峨眉鄉", "峨眉鄉");
    } else if (_county == "苗栗縣") {
        cities[ 1] = new Option("竹南鎮", "竹南鎮");
        cities[ 2] = new Option("頭份鎮", "頭份鎮");
        cities[ 3] = new Option("三灣鄉", "三灣鄉");
        cities[ 4] = new Option("南庄鄉", "南庄鄉");
        cities[ 5] = new Option("獅潭鄉", "獅潭鄉");
        cities[ 6] = new Option("後龍鎮", "後龍鎮");
        cities[ 7] = new Option("通宵鎮", "通宵鎮");
        cities[ 8] = new Option("苑裡鎮", "苑裡鎮");
        cities[ 9] = new Option("苗栗市", "苗栗市");
        cities[10] = new Option("造橋鄉", "造橋鄉");
        cities[11] = new Option("頭屋鄉", "頭屋鄉");
        cities[12] = new Option("公館鄉", "公館鄉");
        cities[13] = new Option("大湖鄉", "大湖鄉");
        cities[14] = new Option("泰安鄉", "泰安鄉");
        cities[15] = new Option("銅鑼鄉", "銅鑼鄉");
        cities[16] = new Option("三義鄉", "三義鄉");
        cities[17] = new Option("西湖鄉", "西湖鄉");
        cities[18] = new Option("卓蘭鎮", "卓蘭鎮");
    } else if (_county == "台中市") {
        cities[ 1] = new Option("中區", "中區");
        cities[ 2] = new Option("東區", "東區");
        cities[ 3] = new Option("南區", "南區");
        cities[ 4] = new Option("西區", "西區");
        cities[ 5] = new Option("北區", "北區");
        cities[ 6] = new Option("北屯區", "北屯區"); 
        cities[ 7] = new Option("西屯區", "西屯區"); 
        cities[ 8] = new Option("南屯區", "南屯區"); 
    } else if (_county == "台中縣") {
        cities[ 1] = new Option("太平市", "太平市");
        cities[ 2] = new Option("大里市", "大里市");
        cities[ 3] = new Option("霧峰鄉", "霧峰鄉");
        cities[ 4] = new Option("烏日鄉", "烏日鄉");
        cities[ 5] = new Option("豐原市", "豐原市");
        cities[ 6] = new Option("后里鄉", "后里鄉");
        cities[ 7] = new Option("石岡鄉", "石岡鄉");
        cities[ 8] = new Option("東勢鎮", "東勢鎮");
        cities[ 9] = new Option("和平鄉", "和平鄉");
        cities[10] = new Option("新社鄉", "新社鄉");
        cities[11] = new Option("潭子鄉", "潭子鄉");
        cities[12] = new Option("大雅鄉", "大雅鄉");
        cities[13] = new Option("神岡鄉", "神岡鄉");
        cities[14] = new Option("大肚鄉", "大肚鄉");
        cities[15] = new Option("沙鹿鎮", "沙鹿鎮");
        cities[16] = new Option("龍井鄉", "龍井鄉");
        cities[17] = new Option("梧棲鎮", "梧棲鎮");
        cities[18] = new Option("清水鎮", "清水鎮");
        cities[19] = new Option("大甲鎮", "大甲鎮");
        cities[20] = new Option("外埔鄉", "外埔鄉");
        cities[21] = new Option("大安鄉", "大安鄉");
    } else if (_county == "彰化縣") {
        cities[ 1] = new Option("彰化市", "彰化市");
        cities[ 2] = new Option("芬園鄉", "芬園鄉");
        cities[ 3] = new Option("花壇鄉", "花壇鄉");
        cities[ 4] = new Option("秀水鄉", "秀水鄉");
        cities[ 5] = new Option("鹿港鎮", "鹿港鎮");
        cities[ 6] = new Option("福興鄉", "福興鄉");
        cities[ 7] = new Option("線西鄉", "線西鄉");
        cities[ 8] = new Option("和美鎮", "和美鎮");
        cities[ 9] = new Option("伸港鄉", "伸港鄉");
        cities[10] = new Option("員林鎮", "員林鎮");
        cities[11] = new Option("社頭鄉", "社頭鄉");
        cities[12] = new Option("永靖鄉", "永靖鄉");
        cities[13] = new Option("埔心鄉", "埔心鄉");
        cities[14] = new Option("溪湖鎮", "溪湖鎮");
        cities[15] = new Option("大村鄉", "大村鄉");
        cities[16] = new Option("埔鹽鄉", "埔鹽鄉");
        cities[17] = new Option("田中鎮", "田中鎮");
        cities[18] = new Option("北斗鎮", "北斗鎮");
        cities[19] = new Option("田尾鄉", "田尾鄉");
        cities[20] = new Option("埤頭鄉", "埤頭鄉");
        cities[21] = new Option("溪州鄉", "溪州鄉");
        cities[22] = new Option("竹塘鄉", "竹塘鄉");
        cities[23] = new Option("二林鎮", "二林鎮");
        cities[24] = new Option("大城鄉", "大城鄉");
        cities[25] = new Option("芳苑鄉", "芳苑鄉");
        cities[26] = new Option("二水鄉", "二水鄉");
    } else if (_county == "南投縣") {
        cities[ 1] = new Option("南投市", "南投市");
        cities[ 2] = new Option("中寮鄉", "中寮鄉");
        cities[ 3] = new Option("草屯鎮", "草屯鎮");
        cities[ 4] = new Option("國姓鄉", "國姓鄉");
        cities[ 5] = new Option("埔里鎮", "埔里鎮");
        cities[ 6] = new Option("仁愛鄉", "仁愛鄉");
        cities[ 7] = new Option("名間鄉", "名間鄉");
        cities[ 8] = new Option("集集鎮", "集集鎮");
        cities[ 9] = new Option("水里鄉", "水里鄉");
        cities[10] = new Option("魚池鄉", "魚池鄉");
        cities[11] = new Option("信義鄉", "信義鄉");
        cities[12] = new Option("竹山鎮", "竹山鎮");
        cities[13] = new Option("鹿谷鄉", "鹿谷鄉");
    } else if (_county == "嘉義市") {
        cities[ 1] = new Option("嘉義市", "嘉義市");
    } else if (_county == "嘉義縣") {
        cities[ 1]=new Option("番路鄉", "番路鄉");
        cities[ 2]=new Option("梅山鄉", "梅山鄉");
        cities[ 3]=new Option("竹崎鄉", "竹崎鄉");
        cities[ 4]=new Option("阿里山鄉", "阿里山鄉");
        cities[ 5]=new Option("中埔鄉", "中埔鄉");
        cities[ 6]=new Option("大埔鄉", "大埔鄉");
        cities[ 7]=new Option("水上鄉", "水上鄉");
        cities[ 8]=new Option("鹿草鄉", "鹿草鄉");
        cities[ 9]=new Option("太保市", "太保市");
        cities[10]=new Option("朴子市", "朴子市");
        cities[11]=new Option("東石鄉", "東石鄉");
        cities[12]=new Option("六腳鄉", "六腳鄉");
        cities[13]=new Option("新港鄉", "新港鄉");
        cities[14]=new Option("民雄鄉", "民雄鄉");
        cities[15]=new Option("大林鎮", "大林鎮");
        cities[16]=new Option("溪口鄉", "溪口鄉");
        cities[17]=new Option("義竹鄉", "義竹鄉");
        cities[18]=new Option("布袋鎮", "布袋鎮");
    } else if (_county == "雲林縣") {
        cities[ 1] = new Option("斗南鎮", "斗南鎮");
        cities[ 2] = new Option("大埤鄉", "大埤鄉");
        cities[ 3] = new Option("虎尾鎮", "虎尾鎮");
        cities[ 4] = new Option("土庫鎮", "土庫鎮");
        cities[ 5] = new Option("褒忠鄉", "褒忠鄉");
        cities[ 6] = new Option("東勢鄉", "東勢鄉");
        cities[ 7] = new Option("臺西鄉", "臺西鄉");
        cities[ 8] = new Option("崙背鄉", "崙背鄉");
        cities[ 9] = new Option("麥寮鄉", "麥寮鄉");
        cities[10] = new Option("斗六市", "斗六市");
        cities[11] = new Option("林內鄉", "林內鄉");
        cities[12] = new Option("古坑鄉", "古坑鄉");
        cities[13] = new Option("薊桐鄉", "薊桐鄉");
        cities[14] = new Option("西螺鎮", "西螺鎮");
        cities[15] = new Option("二崙鄉", "二崙鄉");
        cities[16] = new Option("北港鎮", "北港鎮");
        cities[17] = new Option("水林鄉", "水林鄉");
        cities[18] = new Option("口湖鄉", "口湖鄉");
        cities[19] = new Option("四湖鄉", "四湖鄉");
        cities[20] = new Option("元長鄉", "元長鄉");
    } else if (_county == "台南市") {
        cities[ 1] = new Option("中區", "中區");
        cities[ 2] = new Option("東區", "東區");
        cities[ 3] = new Option("南區", "南區");
        cities[ 4] = new Option("西區", "西區");
        cities[ 5] = new Option("北區", "北區");
        cities[ 6] = new Option("安平區", "安平區");
        cities[ 7] = new Option("安南區", "安南區");
    } else if (_county == "台南縣") {
        cities[ 1] = new Option("永康市", "永康市");
        cities[ 2] = new Option("歸仁鄉", "歸仁鄉");
        cities[ 3] = new Option("新化鎮", "新化鎮");
        cities[ 4] = new Option("左鎮鄉", "左鎮鄉");
        cities[ 5] = new Option("玉井鄉", "玉井鄉");
        cities[ 6] = new Option("楠西鄉", "楠西鄉");
        cities[ 7] = new Option("南化鄉", "南化鄉");
        cities[ 8] = new Option("仁德鄉", "仁德鄉");
        cities[ 9] = new Option("關廟鄉", "關廟鄉");
        cities[10] = new Option("龍崎鄉", "龍崎鄉");
        cities[11] = new Option("官田鄉", "官田鄉");
        cities[12] = new Option("麻豆鎮", "麻豆鎮");
        cities[13] = new Option("佳里鎮", "佳里鎮");
        cities[14] = new Option("西港鄉", "西港鄉");
        cities[15] = new Option("七股鄉", "七股鄉");
        cities[16] = new Option("將軍鄉", "將軍鄉");
        cities[17] = new Option("學甲鎮", "學甲鎮");
        cities[18] = new Option("北門鄉", "北門鄉");
        cities[19] = new Option("新營市", "新營市");
        cities[20] = new Option("後壁鄉", "後壁鄉");
        cities[21] = new Option("白河鎮", "白河鎮");
        cities[22] = new Option("東山鄉", "東山鄉");
        cities[23] = new Option("六甲鄉", "六甲鄉");
        cities[24] = new Option("下營鄉", "下營鄉");
        cities[25] = new Option("柳營鄉", "柳營鄉");
        cities[26] = new Option("鹽水鎮", "鹽水鎮");
        cities[27] = new Option("善化鎮", "善化鎮");
        cities[28] = new Option("大內鄉", "大內鄉");
        cities[29] = new Option("山上鄉", "山上鄉");
        cities[30] = new Option("新市鄉", "新市鄉");
        cities[31] = new Option("安定鄉", "安定鄉");
    } else if (_county == "高雄市") {
        cities[ 1] = new Option("新興區", "新興區");
        cities[ 2] = new Option("前金區", "前金區");
        cities[ 3] = new Option("苓雅區", "苓雅區");
        cities[ 4] = new Option("鹽埕區", "鹽埕區");
        cities[ 5] = new Option("鼓山區", "鼓山區");
        cities[ 6] = new Option("旗津區", "旗津區");
        cities[ 7] = new Option("前鎮區", "前鎮區");
        cities[ 8] = new Option("三民區", "三民區");
        cities[ 9] = new Option("楠梓區", "楠梓區");
        cities[10] = new Option("小港區", "小港區");
        cities[11] = new Option("左營區", "左營區");
    } else if (_county == "高雄縣") {
        cities[ 1] = new Option("仁武鄉", "仁武鄉");
        cities[ 2] = new Option("大社鄉", "大社鄉");
        cities[ 3] = new Option("岡山鎮", "岡山鎮");
        cities[ 4] = new Option("路竹鄉", "路竹鄉");
        cities[ 5] = new Option("阿蓮鄉", "阿蓮鄉");
        cities[ 6] = new Option("田寮鄉", "田寮鄉");
        cities[ 7] = new Option("燕巢鄉", "燕巢鄉");
        cities[ 8] = new Option("橋頭鄉", "橋頭鄉");
        cities[ 9] = new Option("梓官鄉", "梓官鄉");
        cities[10] = new Option("彌陀鄉", "彌陀鄉");
        cities[11] = new Option("永安鄉", "永安鄉");
        cities[12] = new Option("湖內鄉", "湖內鄉");
        cities[13] = new Option("鳳山市", "鳳山市");
        cities[14] = new Option("大寮鄉", "大寮鄉");
        cities[15] = new Option("林園鄉", "林園鄉");
        cities[16] = new Option("鳥松鄉", "鳥松鄉");
        cities[17] = new Option("大樹鄉", "大樹鄉");
        cities[18] = new Option("旗山鎮", "旗山鎮");
        cities[19] = new Option("美濃鎮", "美濃鎮");
        cities[20] = new Option("六龜鄉", "六龜鄉");
        cities[21] = new Option("內門鄉", "內門鄉");
        cities[22] = new Option("杉林鄉", "杉林鄉");
        cities[23] = new Option("甲仙鄉", "甲仙鄉");
        cities[24] = new Option("桃源鄉", "桃源鄉");
        cities[25] = new Option("三民鄉", "三民鄉");
        cities[26] = new Option("茂林鄉", "茂林鄉");
        cities[27] = new Option("茄萣鄉", "茄萣鄉");
    } else if (_county == "澎湖縣") {
        cities[ 1] = new Option("馬公市", "馬公市");
        cities[ 2] = new Option("西嶼鄉", "西嶼鄉");
        cities[ 3] = new Option("望安鄉", "望安鄉");
        cities[ 4] = new Option("七美鄉", "七美鄉");
        cities[ 5] = new Option("白沙鄉", "白沙鄉");
        cities[ 6] = new Option("湖西鄉", "湖西鄉");
    } else if (_county == "屏東縣") {
        cities[ 1] = new Option("屏東市", "屏東市");
        cities[ 2] = new Option("三地門鄉", "三地門鄉");
        cities[ 3] = new Option("霧臺鄉", "霧臺鄉");
        cities[ 4] = new Option("瑪家鄉", "瑪家鄉");
        cities[ 5] = new Option("九如鄉", "九如鄉");
        cities[ 6] = new Option("里港鄉", "里港鄉");
        cities[ 7] = new Option("高樹鄉", "高樹鄉");
        cities[ 8] = new Option("鹽埔鄉", "鹽埔鄉");
        cities[ 9] = new Option("長治鄉", "長治鄉");
        cities[10] = new Option("麟洛鄉", "麟洛鄉");
        cities[11] = new Option("竹田鄉", "竹田鄉");
        cities[12] = new Option("內埔鄉", "內埔鄉");
        cities[13] = new Option("萬丹鄉", "萬丹鄉");
        cities[14] = new Option("潮州鎮", "潮州鎮");
        cities[15] = new Option("泰武鄉", "泰武鄉");
        cities[16] = new Option("來義鄉", "來義鄉");
        cities[17] = new Option("萬巒鄉", "萬巒鄉");
        cities[18] = new Option("崁頂鄉", "崁頂鄉");
        cities[19] = new Option("新埤鄉", "新埤鄉");
        cities[20] = new Option("南州鄉", "南州鄉");
        cities[21] = new Option("林邊鄉", "林邊鄉");
        cities[22] = new Option("東港鎮", "東港鎮");
        cities[23] = new Option("琉球鄉", "琉球鄉");
        cities[24] = new Option("佳冬鄉", "佳冬鄉");
        cities[25] = new Option("新園鄉", "新園鄉");
        cities[26] = new Option("枋寮鄉", "枋寮鄉");
        cities[27] = new Option("枋山鄉", "枋山鄉");
        cities[28] = new Option("春日鄉", "春日鄉");
        cities[29] = new Option("獅子鄉", "獅子鄉");
        cities[30] = new Option("車城鄉", "車城鄉");
        cities[31] = new Option("牡丹鄉", "牡丹鄉");
        cities[32] = new Option("恆春鎮", "恆春鎮");
        cities[33] = new Option("滿州鄉", "滿州鄉");
    } else if (_county == "台東縣") {
        cities[ 1] = new Option("臺東市", "臺東市");
        cities[ 2] = new Option("綠島鄉", "綠島鄉");
        cities[ 3] = new Option("蘭嶼鄉", "蘭嶼鄉");
        cities[ 4] = new Option("延平鄉", "延平鄉");
        cities[ 5] = new Option("卑南鄉", "卑南鄉");
        cities[ 6] = new Option("鹿野鄉", "鹿野鄉");
        cities[ 7] = new Option("關山鎮", "關山鎮");
        cities[ 8] = new Option("海端鄉", "海端鄉");
        cities[ 9] = new Option("池上鄉", "池上鄉");
        cities[10] = new Option("東河鄉", "東河鄉");
        cities[11] = new Option("成功鎮", "成功鎮");
        cities[12] = new Option("長濱鄉", "長濱鄉");
        cities[13] = new Option("太麻里鄉", "太麻里鄉");
        cities[14] = new Option("金峰鄉", "金峰鄉");
        cities[15] = new Option("大武鄉", "大武鄉");
        cities[16] = new Option("達仁鄉", "達仁鄉");
    } else if (_county == "花蓮縣") {
        cities[ 1] = new Option("花蓮市", "花蓮市");
        cities[ 2] = new Option("新城鄉", "新城鄉");
        cities[ 3] = new Option("秀林鄉", "秀林鄉");
        cities[ 4] = new Option("吉安鄉", "吉安鄉");
        cities[ 5] = new Option("壽豐鄉", "壽豐鄉");
        cities[ 6] = new Option("鳳林鎮", "鳳林鎮");
        cities[ 7] = new Option("光復鄉", "光復鄉");
        cities[ 8] = new Option("豐濱鄉", "豐濱鄉");
        cities[ 9] = new Option("瑞穗鄉", "瑞穗鄉");
        cities[10] = new Option("萬榮鄉", "萬榮鄉");
        cities[11] = new Option("玉里鎮", "玉里鎮");
        cities[12] = new Option("卓溪鄉", "卓溪鄉");
        cities[13] = new Option("富里鄉", "富里鄉");
    } else if (_county == "金門縣") {
        cities[ 1] = new Option("金湖鎮", "金湖鎮");
        cities[ 2] = new Option("金寧鄉", "金寧鄉");
        cities[ 3] = new Option("金城鎮", "金城鎮");
        cities[ 4] = new Option("烈嶼鄉", "烈嶼鄉");
        cities[ 5] = new Option("烏坵鄉", "烏坵鄉");
    } else if (_county == "連江縣") {
        cities[ 1] = new Option("南竿", "南竿");
        cities[ 2] = new Option("北竿", "北竿");
        cities[ 3] = new Option("莒光", "莒光");
        cities[ 4] = new Option("東引", "東引");
    } else if (_county == "南海諸島") {
        cities[ 1] = new Option("東沙", "東沙");
        cities[ 2] = new Option("南沙", "南沙");
        cities[ 3] = new Option("釣魚台", "釣魚台");
    } else if (_county == "其他地區") {
        cities[ 1] = new Option("-----", "");
    }

    _element.length = 0;
    
    for (i = 0; i < cities.length; i++) {
        _element.options[i] = cities[i];
    }
}

function changeCityForPostCode(_county, _city) {

    if (_county == "台北市") {
        if (_city == "中正區") {
            return "100";
        } else if (_city == "大同區") {
            return "103";
        } else if (_city == "中山區") {
            return "104";
        } else if (_city == "松山區") {
            return "105";
        } else if (_city == "大安區") {
            return "106";
        } else if (_city == "萬華區") {
            return "108";
        } else if (_city == "信義區") {
            return "110";
        } else if (_city == "士林區") {
            return "111";
        } else if (_city == "北投區") {
            return "112";
        } else if (_city == "內湖區") {
            return "114";
        } else if (_city == "南港區") {
            return "115";
        } else if (_city == "文山區") {
            return "116";
        }
    } else if (_county == "基隆市") {
        if (_city == "仁愛區") {
            return "200";
        } else if (_city == "信義區") {
            return "201";
        } else if (_city == "中正區") {
            return "202";
        } else if (_city == "中山區") {
            return "203";
        } else if (_city == "安樂區") {
            return "204";
        } else if (_city == "暖暖區") {
            return "205";
        } else if (_city == "七堵區") {
            return "206";
        }
    } else if(_county == "台北縣") {
        if (_city == "萬里鄉") {
            return "207";
        } else if (_city == "金山鄉") {
            return "208";
        } else if (_city == "板橋市") {
            return "220";
        } else if (_city == "汐止市") {
            return "221";
        } else if (_city == "深坑鄉") {
            return "222";
        } else if (_city == "石碇鄉") {
            return "223";
        } else if (_city == "瑞芳鎮") {
            return "224";
        } else if (_city == "平溪鄉") {
            return "226";
        } else if (_city == "雙溪鄉") {
            return "227";
        } else if (_city == "貢寮鄉") {
            return "228";
        } else if (_city == "新店市") {
            return "231";
        } else if (_city == "坪林鄉") {
            return "232";
        } else if (_city == "烏來鄉") {
            return "233";
        } else if (_city == "永和市") {
            return "234";
        } else if (_city == "中和市") {
            return "235";
        } else if (_city == "土城市") {
            return "236";
        } else if (_city == "三峽鎮") {
            return "237";
        } else if (_city == "樹林市") {
            return "238";
        } else if (_city == "鶯歌鎮") {
            return "239";
        } else if (_city == "三重市") {
            return "241";
        } else if (_city == "新莊市") {
            return "242";
        } else if (_city == "泰山鄉") {
            return "243";
        } else if (_city == "林口鄉") {
            return "244";
        } else if (_city == "蘆洲市") {
            return "247";
        } else if (_city == "五股鄉") {
            return "248";
        } else if (_city == "八里鄉") {
            return "249";
        } else if (_city == "淡水鎮") {
            return "251";
        } else if (_city == "三芝鄉") {
            return "252";
        } else if (_city == "石門鄉") {
            return "253";
        }
    } else if (_county == "宜蘭縣") {
        if (_city == "宜蘭市") {
            return "260";
        } else if (_city == "頭城鎮") {
            return "261";
        } else if (_city == "礁溪鄉") {
            return "262";
        } else if (_city == "狀圍鄉") {
            return "263";
        } else if (_city == "員山鄉") {
            return "264";
        } else if (_city == "羅東鎮") {
            return "265";
        } else if (_city == "三星鄉") {
            return "266";
        } else if (_city == "大同鄉") {
            return "267";
        } else if (_city == "五結鄉") {
            return "268";
        } else if (_city == "冬山鄉") {
            return "269";
        } else if (_city == "蘇澳鄉") {
            return "270";
        } else if (_city == "南澳鄉") {
            return "272";
        }
    } else if (_county == "桃園縣") {
        if (_city == "中壢市") {
            return "320";
        } else if (_city == "平鎮市") {
            return "324";
        } else if (_city == "龍潭鄉") {
            return "325";
        } else if (_city == "楊梅鎮") {
            return "326";
        } else if (_city == "新屋鄉") {
            return "327";
        } else if (_city == "觀音鄉") {
            return "328";
        } else if (_city == "桃園市") {
            return "330";
        } else if (_city == "龜山鄉") {
            return "333";
        } else if (_city == "八德市") {
            return "334";
        } else if (_city == "大溪鎮") {
            return "335";
        } else if (_city == "復興鄉") {
            return "336";
        } else if (_city == "大園鄉") {
            return "337";
        } else if (_city == "蘆竹鄉") {
            return "338";
        }
    } else if (_county == "新竹市") {
        if (_city == "新竹市") {
            return "300";
        }
    } else if (_county == "新竹縣") {
        if (_city == "竹北市") {
            return "302";
        } else if (_city == "湖口鄉") {
            return "303";
        } else if (_city == "新豐鄉") {
            return "304";
        } else if (_city == "新埔鎮") {
            return "305";
        } else if (_city == "關西鎮") {
            return "306";
        } else if (_city == "芎林鄉") {
            return "307";
        } else if (_city == "寶山鄉") {
            return "308";
        } else if (_city == "竹東鎮") {
            return "310";
        } else if (_city == "五峰鄉") {
            return "311";
        } else if (_city == "橫山鄉") {
            return "312";
        } else if (_city == "尖石鄉") {
            return "313";
        } else if (_city == "北埔鄉") {
            return "314";
        } else if (_city == "峨眉鄉") {
            return "315";
        }
    } else if (_county == "苗栗縣") {
        if (_city == "竹南鎮") {
            return "350";
        } else if (_city == "頭份鎮") {
            return "351";
        } else if (_city == "三灣鄉") {
            return "352";
        } else if (_city == "南庄鄉") {
            return "353";
        } else if (_city == "獅潭鄉") {
            return "354";
        } else if (_city == "後龍鎮") {
            return "356";
        } else if (_city == "通宵鎮") {
            return "357";
        } else if (_city == "苑裡鎮") {
            return "358";
        } else if (_city == "苗栗市") {
            return "360";
        } else if (_city == "造橋鄉") {
            return "361";
        } else if (_city == "頭屋鄉") {
            return "362";
        } else if (_city == "公館鄉") {
            return "363";
        } else if (_city == "大湖鄉") {
            return "364";
        } else if (_city == "泰安鄉") {
            return "365";
        } else if (_city == "銅鑼鄉") {
            return "366";
        } else if (_city == "三義鄉") {
            return "367";
        } else if (_city == "西湖鄉") {
            return "368";
        } else if (_city == "卓蘭鎮") {
            return "369";
        }
    } else if (_county == "台中市") {
        if (_city == "中區") {
            return "400";
        } else if (_city == "東區") {
            return "401";
        } else if (_city == "南區") {
            return "402";
        } else if (_city == "西區") {
            return "403";
        } else if (_city == "北區") {
            return "404";
        } else if (_city == "北屯區") {
            return "406"; 
        } else if (_city == "西屯區") {
            return "407"; 
        } else if (_city == "南屯區") {
            return "408";
        } 
    } else if (_county == "台中縣") {
        if (_city == "太平市") {
            return "411";
        } else if (_city == "大里市") {
            return "412";
        } else if (_city == "霧峰鄉") {
            return "413";
        } else if (_city == "烏日鄉") {
            return "414";
        } else if (_city == "豐原市") {
            return "420";
        } else if (_city == "后里鄉") {
            return "421";
        } else if (_city == "石岡鄉") {
            return "422";
        } else if (_city == "東勢鎮") {
            return "423";
        } else if (_city == "和平鄉") {
            return "424";
        } else if (_city == "新社鄉") {
            return "426";
        } else if (_city == "潭子鄉") {
            return "427";
        } else if (_city == "大雅鄉") {
            return "428";
        } else if (_city == "神岡鄉") {
            return "429";
        } else if (_city == "大肚鄉") {
            return "432";
        } else if (_city == "沙鹿鎮") {
            return "433";
        } else if (_city == "龍井鄉") {
            return "434";
        } else if (_city == "梧棲鎮") {
            return "435";
        } else if (_city == "清水鎮") {
            return "436";
        } else if (_city == "大甲鎮") {
            return "437";
        } else if (_city == "外埔鄉") {
            return "438";
        } else if (_city == "大安鄉") {
            return "439";
        }
    } else if (_county == "彰化縣") {
        if (_city == "彰化市") {
            return "500";
        } else if (_city == "芬園鄉") {
            return "502";
        } else if (_city == "花壇鄉") {
            return "503";
        } else if (_city == "秀水鄉") {
            return "504";
        } else if (_city == "鹿港鎮") {
            return "505";
        } else if (_city == "福興鄉") {
            return "506";
        } else if (_city == "線西鄉") {
            return "507";
        } else if (_city == "和美鎮") {
            return "508";
        } else if (_city == "伸港鄉") {
            return "509";
        } else if (_city == "員林鎮") {
            return "510";
        } else if (_city == "社頭鄉") {
            return "511";
        } else if (_city == "永靖鄉") {
            return "512";
        } else if (_city == "埔心鄉") {
            return "513";
        } else if (_city == "溪湖鎮") {
            return "514";
        } else if (_city == "大村鄉") {
            return "515";
        } else if (_city == "埔鹽鄉") {
            return "516";
        } else if (_city == "田中鎮") {
            return "520";
        } else if (_city == "北斗鎮") {
            return "521";
        } else if (_city == "田尾鄉") {
            return "522";
        } else if (_city == "埤頭鄉") {
            return "523";
        } else if (_city == "溪州鄉") {
            return "524";
        } else if (_city == "竹塘鄉") {
            return "525";
        } else if (_city == "二林鎮") {
            return "526";
        } else if (_city == "大城鄉") {
            return "527";
        } else if (_city == "芳苑鄉") {
            return "528";
        } else if (_city == "二水鄉") {
            return "600";
        }
    } else if (_county == "南投縣") {
        if (_city == "南投市") {
            return "540";
        } else if (_city == "中寮鄉") {
            return "541";
        } else if (_city == "草屯鎮") {
            return "542";
        } else if (_city == "國姓鄉") {
            return "544";
        } else if (_city == "埔里鎮") {
            return "545";
        } else if (_city == "仁愛鄉") {
            return "546";
        } else if (_city == "名間鄉") {
            return "551";
        } else if (_city == "集集鎮") {
            return "552";
        } else if (_city == "水里鄉") {
            return "553";
        } else if (_city == "魚池鄉") {
            return "555";
        } else if (_city == "信義鄉") {
            return "556";
        } else if (_city == "竹山鎮") {
            return "557";
        } else if (_city == "鹿谷鄉") {
            return "558";
        }
    } else if (_county == "嘉義市") {
        if (_city == "嘉義市") {
            return "600";
        }
    } else if (_county == "嘉義縣") {
        if (_city == "番路鄉") {
            return "602";
        } else if (_city == "梅山鄉") {
            return "603";
        } else if (_city == "竹崎鄉") {
            return "604";
        } else if (_city == "阿里山鄉") {
            return "605";
        } else if (_city == "中埔鄉") {
            return "606";
        } else if (_city == "大埔鄉") {
            return "607";
        } else if (_city == "水上鄉") {
            return "608";
        } else if (_city == "鹿草鄉") {
            return "611";
        } else if (_city == "太保市") {
            return "612";
        } else if (_city == "朴子市") {
            return "613";
        } else if (_city == "東石鄉") {
            return "614";
        } else if (_city == "六腳鄉") {
            return "615";
        } else if (_city == "新港鄉") {
            return "616";
        } else if (_city == "民雄鄉") {
            return "621";
        } else if (_city == "大林鎮") {
            return "622";
        } else if (_city == "溪口鄉") {
            return "623";
        } else if (_city == "義竹鄉") {
            return "624";
        } else if (_city == "布袋鎮") {
            return "625";
        }
    } else if (_county == "雲林縣") {
        if (_city == "斗南鎮") {
            return "630";
        } else if (_city == "大埤鄉") {
            return "631";
        } else if (_city == "虎尾鎮") {
            return "632";
        } else if (_city == "土庫鎮") {
            return "633";
        } else if (_city == "褒忠鄉") {
            return "634";
        } else if (_city == "東勢鄉") {
            return "635";
        } else if (_city == "臺西鄉") {
            return "636";
        } else if (_city == "崙背鄉") {
            return "637";
        } else if (_city == "麥寮鄉") {
            return "638";
        } else if (_city == "斗六市") {
            return "640";
        } else if (_city == "林內鄉") {
            return "643";
        } else if (_city == "古坑鄉") {
            return "646";
        } else if (_city == "薊桐鄉") {
            return "647";
        } else if (_city == "西螺鎮") {
            return "648";
        } else if (_city == "二崙鄉") {
            return "649";
        } else if (_city == "北港鎮") {
            return "651";
        } else if (_city == "水林鄉") {
            return "652";
        } else if (_city == "口湖鄉") {
            return "653";
        } else if (_city == "四湖鄉") {
            return "654";
        } else if (_city == "元長鄉") {
            return "655";
        }
    } else if (_county == "台南市") {
        if (_city == "中區") {
            return "700";
        } else if (_city == "東區") {
            return "701";
        } else if (_city == "南區") {
            return "702";
        } else if (_city == "西區") {
            return "703";
        } else if (_city == "北區") {
            return "704";
        } else if (_city == "安平區") {
            return "708";
        } else if (_city == "安南區") {
            return "709";
        }
    } else if (_county == "台南縣") {
        if (_city == "永康市") {
            return "710";
        } else if (_city == "歸仁鄉") {
            return "711";
        } else if (_city == "新化鎮") {
            return "712";
        } else if (_city == "左鎮鄉") {
            return "713";
        } else if (_city == "玉井鄉") {
            return "714";
        } else if (_city == "楠西鄉") {
            return "715";
        } else if (_city == "南化鄉") {
            return "716";
        } else if (_city == "仁德鄉") {
            return "717";
        } else if (_city == "關廟鄉") {
            return "718";
        } else if (_city == "龍崎鄉") {
            return "719";
        } else if (_city == "官田鄉") {
            return "720";
        } else if (_city == "麻豆鎮") {
            return "721";
        } else if (_city == "佳里鎮") {
            return "722";
        } else if (_city == "西港鄉") {
            return "723";
        } else if (_city == "七股鄉") {
            return "724";
        } else if (_city == "將軍鄉") {
            return "725";
        } else if (_city == "學甲鎮") {
            return "726";
        } else if (_city == "北門鄉") {
            return "727";
        } else if (_city == "新營市") {
            return "730";
        } else if (_city == "後壁鄉") {
            return "731";
        } else if (_city == "白河鎮") {
            return "732";
        } else if (_city == "東山鄉") {
            return "733";
        } else if (_city == "六甲鄉") {
            return "734";
        } else if (_city == "下營鄉") {
            return "735";
        } else if (_city == "柳營鄉") {
            return "736";
        } else if (_city == "鹽水鎮") {
            return "737";
        } else if (_city == "善化鎮") {
            return "741";
        } else if (_city == "大內鄉") {
            return "742";
        } else if (_city == "山上鄉") {
            return "743";
        } else if (_city == "新市鄉") {
            return "744";
        } else if (_city == "安定鄉") {
            return "745";
        }
    } else if (_county == "高雄市") {
        if (_city == "新興區") {
            return "800";
        } else if (_city == "前金區") {
            return "801";
        } else if (_city == "苓雅區") {
            return "802";
        } else if (_city == "鹽埕區") {
            return "803";
        } else if (_city == "鼓山區") {
            return "804";
        } else if (_city == "旗津區") {
            return "805";
        } else if (_city == "前鎮區") {
            return "806";
        } else if (_city == "三民區") {
            return "807";
        } else if (_city == "楠梓區") {
            return "811";
        } else if (_city == "小港區") {
            return "812";
        } else if (_city == "左營區") {
            return "813";
        }
    } else if (_county == "高雄縣") {
        if (_city == "仁武鄉") {
            return "814";
        } else if (_city == "大社鄉") {
            return "815";
        } else if (_city == "岡山鎮") {
            return "820";
        } else if (_city == "路竹鄉") {
            return "821";
        } else if (_city == "阿蓮鄉") {
            return "822";
        } else if (_city == "田寮鄉") {
            return "823";
        } else if (_city == "燕巢鄉") {
            return "824";
        } else if (_city == "橋頭鄉") {
            return "825";
        } else if (_city == "梓官鄉") {
            return "826";
        } else if (_city == "彌陀鄉") {
            return "827";
        } else if (_city == "永安鄉") {
            return "828";
        } else if (_city == "湖內鄉") {
            return "829";
        } else if (_city == "鳳山市") {
            return "830";
        } else if (_city == "大寮鄉") {
            return "831";
        } else if (_city == "林園鄉") {
            return "832";
        } else if (_city == "鳥松鄉") {
            return "833";
        } else if (_city == "大樹鄉") {
            return "840";
        } else if (_city == "旗山鎮") {
            return "842";
        } else if (_city == "美濃鎮") {
            return "843";
        } else if (_city == "六龜鄉") {
            return "844";
        } else if (_city == "內門鄉") {
            return "845";
        } else if (_city == "杉林鄉") {
            return "846";
        } else if (_city == "甲仙鄉") {
            return "847";
        } else if (_city == "桃源鄉") {
            return "848";
        } else if (_city == "三民鄉") {
            return "849";
        } else if (_city == "茂林鄉") {
            return "851";
        } else if (_city == "茄萣鄉") {
            return "852";
        }
    } else if (_county == "澎湖縣") {
        if (_city == "馬公市") {
            return "880";
        } else if (_city == "西嶼鄉") {
            return "881";
        } else if (_city == "望安鄉") {
            return "882";
        } else if (_city == "七美鄉") {
            return "883";
        } else if (_city == "白沙鄉") {
            return "884";
        } else if (_city == "湖西鄉") {
            return "885";
        }
    } else if (_county == "屏東縣") {
        if (_city == "屏東市") {
            return "900";
        } else if (_city == "三地門鄉") {
            return "901";
        } else if (_city == "霧臺鄉") {
            return "902";
        } else if (_city == "瑪家鄉") {
            return "903";
        } else if (_city == "九如鄉") {
            return "904";
        } else if (_city == "里港鄉") {
            return "905";
        } else if (_city == "高樹鄉") {
            return "906";
        } else if (_city == "鹽埔鄉") {
            return "907";
        } else if (_city == "長治鄉") {
            return "908";
        } else if (_city == "麟洛鄉") {
            return "909";
        } else if (_city == "竹田鄉") {
            return "911";
        } else if (_city == "內埔鄉") {
            return "912";
        } else if (_city == "萬丹鄉") {
            return "913";
        } else if (_city == "潮州鎮") {
            return "920";
        } else if (_city == "泰武鄉") {
            return "921";
        } else if (_city == "來義鄉") {
            return "922";
        } else if (_city == "萬巒鄉") {
            return "923";
        } else if (_city == "崁頂鄉") {
            return "924";
        } else if (_city == "新埤鄉") {
            return "925";
        } else if (_city == "南州鄉") {
            return "926";
        } else if (_city == "林邊鄉") {
            return "927";
        } else if (_city == "東港鎮") {
            return "928";
        } else if (_city == "琉球鄉") {
            return "929";
        } else if (_city == "佳冬鄉") {
            return "931";
        } else if (_city == "新園鄉") {
            return "932";
        } else if (_city == "枋寮鄉") {
            return "940";
        } else if (_city == "枋山鄉") {
            return "941";
        } else if (_city == "春日鄉") {
            return "942";
        } else if (_city == "獅子鄉") {
            return "943";
        } else if (_city == "車城鄉") {
            return "944";
        } else if (_city == "牡丹鄉") {
            return "945";
        } else if (_city == "恆春鎮") {
            return "946";
        } else if (_city == "滿州鄉") {
            return "947";
        }
    } else if (_county == "台東縣") {
        if (_city == "臺東市") {
            return "950";
        } else if (_city == "綠島鄉") {
            return "951";
        } else if (_city == "蘭嶼鄉") {
            return "952";
        } else if (_city == "延平鄉") {
            return "953";
        } else if (_city == "卑南鄉") {
            return "954";
        } else if (_city == "鹿野鄉") {
            return "955";
        } else if (_city == "關山鎮") {
            return "956";
        } else if (_city == "海端鄉") {
            return "957";
        } else if (_city == "池上鄉") {
            return "958";
        } else if (_city == "東河鄉") {
            return "959";
        } else if (_city == "成功鎮") {
            return "961";
        } else if (_city == "長濱鄉") {
            return "962";
        } else if (_city == "太麻里鄉") {
            return "963";
        } else if (_city == "金峰鄉") {
            return "964";
        } else if (_city == "大武鄉") {
            return "965";
        } else if (_city == "達仁鄉") {
            return "966";
        }
    } else if (_county == "花蓮縣") {
        if (_city == "花蓮市") {
            return "970";
        } else if (_city == "新城鄉") {
            return "971";
        } else if (_city == "秀林鄉") {
            return "972";
        } else if (_city == "吉安鄉") {
            return "973";
        } else if (_city == "壽豐鄉") {
            return "974";
        } else if (_city == "鳳林鎮") {
            return "975";
        } else if (_city == "光復鄉") {
            return "976";
        } else if (_city == "豐濱鄉") {
            return "977";
        } else if (_city == "瑞穗鄉") {
            return "978";
        } else if (_city == "萬榮鄉") {
            return "979";
        } else if (_city == "玉里鎮") {
            return "981";
        } else if (_city == "卓溪鄉") {
            return "982";
        } else if (_city == "富里鄉") {
            return "983";
        }
    } else if (_county == "金門縣") {
        if (_city == "金湖鎮") {
            return "891";
        } else if (_city == "金寧鄉") {
            return "892";
        } else if (_city == "金城鎮") {
            return "893";
        } else if (_city == "烈嶼鄉") {
            return "894";
        } else if (_city == "烏坵鄉") {
            return "896";
        }
    } else if (_county == "連江縣") {
        if (_city == "南竿") {
            return "209";
        } else if (_city == "北竿") {
            return "210";
        } else if (_city == "莒光") {
            return "211";
        } else if (_city == "東引") {
            return "212";
        }
    } else if (_county == "南海諸島") {
        if (_city == "東沙") {
            return "817";
        } else if (_city == "南沙") {
            return "819";
        } else if (_city == "釣魚台") {
            return "290";
        }
    } else if (_county == "其他地區") {
        return "";
    }
    
    return "";
}