function ChangeProvince(obj){

	selProvince=$("#selProvince");
	selCity=$("#selCity");
	
	selCity[0].options.length=0;
	selCity[0].options.add(new Option("請選擇",""));
	id=($(obj).val() == "")?$(obj).val():"4";
	province=getProvinceCodesName(id);
  selProvince[0].options.length=0;       
  selProvince[0].options.add(new Option("請選擇",""));
	
	ResetSpan("#selCitySpan");

	if(province != null){
		for(var i=0;i<province.length;i++){
			var infos=province[i].split('_');
			selProvince[0].options.add(new Option(infos[1],infos[0]));
		}
	}
}

function getProvinceCodesName(idx){
	switch(idx){
		case"":
			return null;
		case"1":
			return new Array('393_北京','402_上海','412_天津','423_重慶','2914_內蒙古','2916_河北','2917_遼寧','2918_黑龍江','2919_江蘇','2920_安徽','2921_山東','2922_浙江','2923_江西','2924_福建','2925_湖南','2926_湖北','2927_河南','2928_廣東','2929_海南','2930_廣西','2931_貴州','2932_四川','2933_雲南','2934_陝西','2935_甘肅','2936_寧夏','2937_山西','2938_西藏','2939_新疆','2940_青海','2941_吉林','2944_香港','2830_澳門')
		case"2":
			return null
		case"3":
			return null
		case"4":
			return new Array('1_台北市','14_基隆市','22_台北縣','52_宜蘭縣','65_新竹市','66_新竹縣','80_桃園縣','94_苗栗縣','113_台中市','144_彰化縣','171_南投縣','185_嘉義市','186_嘉義縣','205_雲林縣','226_台南市','233_台南縣','265_高雄市','277_高雄縣','305_澎湖縣','312_屏東縣','346_台東縣','363_花蓮縣','384_連江縣','389_南海諸島')
		case"5":
			return null
	}
}

function ChangeCity(url,obj){
	ResetSpan("#selCitySpan");
	$.ajax({ 
		url: url,
		type:"get",          
    success:function(Res){
			$(obj)[0].options.length = 0;
			$(obj)[0].options.add(new Option("請選擇",""));
			if(Res.length > 0){
				infos = Res.split(",");
			}
			for(var i=0;i<infos.length;i++){
				var citys=infos[i].split('_');
				$(obj)[0].options.add(new Option(citys[1],citys[0]));
			}
		}
  });
}

function ResetSpan(obj){
	$(obj).removeAttr("class");
	$(obj).html("");
}