var TwPostcode = {
    
    Cities:["臺北市", "基隆市", "臺北縣", "宜蘭縣", "新竹市", "新竹縣", "桃園縣", "苗栗縣", "臺中市", "臺中縣", "彰化縣","南投縣", "嘉義市", "嘉義縣", "雲林縣", "臺南市", "臺南縣","高雄市", "高雄縣", "澎湖縣", "屏東縣", "臺東縣", "花蓮縣","金門縣", "連江縣", "南海諸島", "釣魚台列嶼"],
    
    Towns:{
        c0:["中正區","大同區","中山區","松山區","大安區","萬華區","信義區","士林區","北投區","內湖區","南港區","文山區(木柵)","文山區(景美)"],
        c1:["仁愛區","信義區","中正區","中山區","安樂區","暖暖區","七堵區"],
        c2:["萬里鄉","金山鄉","板橋市","汐止鎮","深坑鄉","石碇鄉","瑞芳鎮","平溪鄉","雙溪鄉","貢寮鄉","新店市","坪林鄉","烏來鄉","永和市","中和市","土城市","三峽鎮","樹林市","鶯歌鎮","三重市","新莊市","泰山鄉","林口鄉","蘆洲市","五股鄉","八里鄉","淡水鎮","三芝鄉","石門鄉"],
        c3:["宜蘭市","頭城鎮","礁溪鄉","壯圍鄉","員山鄉","羅東鎮","三星鄉","大同鄉","五結鄉","冬山鄉","蘇澳鎮","南澳鄉"],
        c4:["　"],
        c5:["竹北市","湖口鄉","新豐鄉","新埔鄉","關西鎮","芎林鄉","寶山鄉","竹東鎮","五峰鄉","橫山鄉","尖石鄉","北埔鄉","峨嵋鄉"],
        c6:["中壢市","平鎮","龍潭鄉","楊梅鎮","新屋鄉","觀音鄉","桃園市","龜山鄉","八德市","大溪鎮","復興鄉","大園鄉","蘆竹鄉"],
        c7:["竹南鎮","頭份鎮","三灣鄉","南庄鄉","獅潭鄉","後龍鎮","通霄鎮","苑裡鎮","苗栗市","造橋鄉","頭屋鄉","公館鄉","大湖鄉","泰安鄉","鉰鑼鄉","三義鄉","西湖鄉","卓蘭鄉"],
        c8:["中區","東區","南區","西區","北區","北屯區","西屯區","南屯區"],
        c9:["太平市","大里市","霧峰鄉","烏日鄉","豐原市","后里鄉","石岡鄉","東勢鎮","和平鄉","新社鄉","潭子鄉","大雅鄉","神岡鄉","大肚鄉","沙鹿鎮","龍井鄉","梧棲鎮","清水鎮","大甲鎮","外埔鄉","大安鄉"],
        c10:["彰化市","芬園鄉","花壇鄉","秀水鄉","鹿港鎮","福興鄉","線西鄉","和美鎮","伸港鄉","員林鎮","社頭鄉","永靖鄉","埔心鄉","溪湖鎮","大村鄉","埔鹽鄉","田中鎮","北斗鎮","田尾鄉","埤頭鄉","溪州鄉","竹塘鄉","二林鎮","大城鄉","芳苑鄉","二水鄉"],
        c11:["南投市","中寮鄉","草屯鎮","國姓鄉","埔里鎮","仁愛鄉","名間鄉","集集鄉","水里鄉","魚池鄉","信義鄉","竹山鎮","鹿谷鄉"],
        c12:["　　"],
        c13:["番路鄉","梅山鄉","竹崎鄉","阿里山鄉","中埔鄉","大埔鄉","水上鄉","鹿草鄉","太保市","朴子市","東石鄉","六腳鄉","新港鄉","民雄鄉","大林鎮","漢口鄉","義竹鄉","布袋鎮"],
        c14:["斗南市","大埤鄉","虎尾鎮","土庫鎮","褒忠鄉","東勢鄉","臺西鄉","崙背鄉","麥寮鄉","斗六市","林內鄉","古坑鄉","莿桐鄉","西螺鎮","二崙鄉","北港鎮","水林鄉","口湖鄉","四湖鄉","元長鄉"],
        c15:["中區","東區","南區","西區","北區","安平區","安南區"],
        c16:["永康市","歸仁鄉","新化鎮","左鎮鄉","玉井鄉","楠西鄉","南化鄉","仁德鄉","關廟鄉","龍崎鄉","官田鄉","麻豆鎮","佳里鎮","西港鄉","七股鄉","將軍鄉",	"學甲鎮","北門鄉","新營市","後壁鄉","白河鎮","東山鄉","六甲鄉","下營鄉","柳營鄉",	"鹽水鎮","善化鎮","大內鄉","山上鄉","新市鄉","安定鄉"],
        c17:["新興區","前金區","苓雅區","鹽埕區","鼓山區","旗津區","前鎮區","三民區","楠梓區","小港區","左營區"],
        c18:["仁武鄉","大社鄉","岡山鎮","路竹鄉","阿蓮鄉","田寮鄉","燕巢鄉","橋頭鄉","梓官鄉","彌陀鄉","永安鄉","湖內鄉","鳳山市","大寮鄉","林園鄉","鳥松鄉",	"大樹鄉","旗山鎮","美濃鎮","六龜鄉","內門鄉","杉林鄉","甲仙鄉","桃源鄉","三民鄉","茂林鄉","茄萣鄉"],
        c19:["馬公市","西嶼鄉","望安鄉","七美鄉","白沙鄉","湖西鄉"],
        c20:["屏東市","三地門鄉","霧臺鄉","瑪家鄉","九如鄉","里港鄉","高樹鄉","鹽埔鄉","長治鄉","麟洛鄉","竹田鄉","內埔鄉","萬丹鄉","潮州鎮","泰武鄉","來義鄉","萬巒鄉","嵌頂鄉","新埤鄉","南州鄉","林邊鄉","東港鎮","琉球鄉","佳冬鄉","新園鄉","枋寮鄉", "枋山鄉","春日鄉","獅子鄉","車城鄉","牡丹鄉","恆春鎮","滿州鄉"],
        c21:["臺東市","綠島鄉","蘭嶼鄉","延平鄉","卑南鄉","鹿野鄉","關山鎮","海端鄉","池上鄉","東河鄉","成功鎮","長濱鄉","太麻里鄉","金峰鄉","大武鄉","達仁鄉"],
        c22:["花蓮市","新城鄉","秀林鄉","吉安鄉","壽豐鄉","鳳林鎮","光復鄉","豐濱鄉","瑞穗鄉","萬榮鄉","玉里鎮","卓溪鄉","富里鄉"],
        c23:["金沙鎮","金湖鎮","金寧鄉","金城鎮","烈嶼鄉","烏坵鄉"],
        c24:["南竿鄉","北竿鄉","莒光鄉","東引"],
        c25:["東沙","西沙"],
        c26:["　　　"]
    },
    
    Codes:{
        c0:["100","103","104","105","106","108","110","111","112","114","115","116","117"],
        c1:["200","201","202","203","204","205","206"],
        c2:["207","208","220","221","222","223","224","226","227","228","231","232","233","234","235","236","237","238","239","241","242","243","244","247","248","249","251","252","253"],
        c3:["260","261","262","263","264","265","266","267","268","269","270","272"],
        c4:["300"],
        c5:["302","303","304","305","306","307","308","310","311","312","313","314","315"],
        c6:["320","324","325","326","327","328","330","333","334","335","336","337","338"],
        c7:["350","351","352","353","354","356","357","358","360","361","362","363","364","365","366","367","368","369"],
        c8:["400","401","402","403","404","406","407","408"],
        c9:["411","412","413","414","420","421","422","423","424","426","427","428","429","432","433","434","435","436","437","438","439"],
        c10:["500","502","503","504","505","506","507","508","509","510","511","5112","513","514","515","516","520","521","522","523","524","525","526","527","528","530"],
        c11:["540","541","542","544","545","546","551","552","553","555","556","557","558"],
        c12:["600"],
        c13:["602","603","604","605","606","607","608","611","612","613","614","615","616","621","622","623","624","625"],
        c14:["630","631","632","633","634","635","636","637","638","640","643","646","647","648","649","651","652","653","654","655"],
        c15:["700","701","702","703","704","708","709"],
        c16:["710","711","712","713","714","715","716","717","718","719","720","721","722","723","724","725","726","727","730","731","732","733","734","735","736","737","741","742","743","744","745"],
        c17:["800","801","802","803","804","805","806","807","811","812","813"],
        c18:["814","815","820","821","822","823","824","825","826","827","828","829","830","831","832","833","840","842","843","844","845","846","847","848","849","851","852"],
        c19:["880","881","882","883","884","885"],
        c20:["900","901","902","903","904","905","906","907","908","909","911","912","913","920","921","922","923","924","925","926","927","928","929","931","932","940","941","942","943","944","945","946","947"],
        c21:["950","951","952","953","954","955","956","957","958","959","961","962","963","964","965","966"],
        c22:["970","971","972","973","974","975","976","977","978","979","981","982","983"],
        c23:["890","891","892","893","894","896"],
        c24:["209","210","211","212"],
        c25:["817","819","290"],
        c26:["290"]
    },
    
    Init:function( citySel, townSel, postcodeTxt, city, town ){
        if( !citySel || !townSel || !postcodeTxt || citySel.type != 'select-one' || townSel.type != 'select-one' || postcodeTxt.type != 'text' )
        { alert("無法啟用 TwPostcode"+citySel.type+':'+townSel.type+':'+postcodeTxt.type); return; }
        for( var i=0; i<TwPostcode.Cities.length; i++ )
        { citySel.options[i] = new Option(TwPostcode.Cities[i],TwPostcode.Cities[i],( ( typeof(city)=='string'&&city!=""&&city==TwPostcode.Cities[i] ) ? true:false ) ); }
        citySel.onchange=function(){TwPostcode.ChangeCity(this,townSel,postcodeTxt)}
        TwPostcode.ChangeCity( citySel, townSel, postcodeTxt );
        townSel.onchange=function(){TwPostcode.ChangeTown(citySel,this,postcodeTxt)}
    },
    
    ChangeCity:function(citySel, townSel, postcodeTxt, town ){
        //alert( "City:"+citySel.name+", Town:"+townSel.name+", Code:"+postcodeTxt.name );
        for( var j=(townSel.options.length-1); j>=0; j-- ) townSel.options[j] = null;
        for( var i=0; i<TwPostcode.Towns['c'+citySel.selectedIndex].length; i++ )
        {
            var t = TwPostcode.Towns['c'+citySel.selectedIndex][i];
            townSel.options[i] = new Option( t, t, ( ( typeof(town)=='string' && town!='' && t==town ) ? true:false ) );
        }
        TwPostcode.ChangeTown(citySel, townSel, postcodeTxt);
    },
    
    ChangeTown:function(citySel, townSel, postcodeTxt){
        postcodeTxt.value = TwPostcode.Codes['c'+citySel.selectedIndex][townSel.selectedIndex];
    },
    
    EOS:0
};