js修改二地址下拉框

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//根市var city_x = new Array();city_x[''] = [""];city_x['基隆市'] = ["仁","信","中正","中山","安","暖暖","七堵"];city_x['台北市'] = ["中正","大同","中山","松山","大安","","信","士林","北投","湖","南港","文山"];city_x['台北'] = ["里","金山","板市","汐止市","深坑","石碇","瑞芳","平溪","溪","寮","新店市","坪林","","永和市","中和市","土城市","三","林市","歌","三重市","新市","泰山","林口","洲市","五股","八里","淡水","三芝","石"];city_x['桃'] = ["中市","平市","潭","梅","新屋","音","桃市","山","八德市","大溪","","大","竹"];city_x['新竹市'] = ["新竹市"];city_x['新竹'] = ["竹北市","湖口","新","新埔","西","芎林","山","竹","五峰","山","尖石","北埔","峨眉"];city_x['苗栗'] = ["竹南","份","三","南庄","潭","後","通霄","苑","栗市","造","屋","公","大湖","泰安","","三","西湖","卓"];city_x['台中市'] = ["中","","南","西","北","北屯","西屯","南屯"];city_x['台中'] = ["太平市","大里市","峰","日","原市","后里","石","","和平","新社","潭子","大雅","神","大肚","沙鹿","井","梧","清水","大甲","外埔","大安"];city_x['彰化'] = ["彰化市","芬","花","秀水","鹿港","福","西","和美","伸港","林","社","永靖","埔心","溪湖","大村","埔","田中","北斗","田尾","埤","溪州","竹塘","二林","大城","芳苑","二水"];city_x['南投'] = ["南投市","中寮","草屯","姓","埔里","仁","名","集集","水里","池","信","竹山","鹿谷"];city_x['林'] = ["斗南","大埤","虎尾","土","褒忠","","西","背","寮","斗六市","林","古坑","桐","西螺","二","北港","水林","口湖","四湖","元"];city_x['嘉市'] = ["嘉市"];city_x['嘉'] = ["番路","梅山","竹崎","阿里山","中埔","大埔","水上","鹿草","太保市","朴子市","石","六","新港","民雄","大林","溪口","竹","布袋"];city_x['台南市'] = ["中","","南","西","北","安平","安南"];city_x['台南'] = ["永康市","仁","新化","左","玉井","楠西","南化","仁德","","崎","官田","麻豆","佳里","西港","七股","","甲","北","新市","後壁","白河","山","六甲","下","柳","水","善化","大","山上","新市","安定"];city_x['高雄市'] = ["新","前金","苓雅","埕","鼓山","旗津","前","三民","楠梓","小港","左"];city_x['高雄'] = ["仁武","大社","山","路竹","阿","田寮","燕巢","","梓官","陀","永安","湖","山市","大寮","林","松","大","旗山","美","六","","杉林","甲仙","桃源","三民","茂林","茄"];city_x['屏'] = ["屏市","三地","","家","九如","里港","高","埔","治","麟洛","竹田","埔","丹","潮州","泰武","","","","新埤","南州","林","港","琉球","佳冬","新","枋寮","枋山","春日","子","城","牡丹","春","州"];city_x['宜'] = ["宜市","城","礁溪","","山","","三星","大同","五","冬山","澳","南澳"];city_x['花'] = ["花市","新城","秀林","吉安","","林","光","","瑞穗","","玉里","卓溪","富里"];city_x[''] = ["市","","","延平","卑南","鹿野","山","海端","池上","河","成功","","太麻里","金峰","大武","仁"];city_x['澎湖'] = ["公市","西","望安","七美","白沙","湖西"];city_x['金'] = ["金沙","金湖","金","金城","烈",""];city_x['江'] = ["南竿","北竿","莒光","引"];function cityChange( city_id , county_id ){var city = document.getElementById(city_id);var county = document.getElementById(county_id) ;county.length = 1 ;if(typeof(city_x[city.value])=='undefined') return;for( var i = 0 ; i < city_x[city.value].length ; i++ ){county.options[i] = new Option(city_x[city.value][i], city_x[city.value][i]);}}
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    1 楼    spp_1987    2010-07-16               要是js里面写错的，还不是很难查到？？？