// JavaScript Document
var city=[
	["北海道"],
	["青森","秋田","宮城","岩手","山形","福島"],
	["群馬","栃木","茨城"],
	["東京","神奈川","埼玉","千葉"],
	["新潟","長野","山梨"],
	["富山","石川","福井"],
	["静岡","岐阜","愛知","三重"],
	["大阪","兵庫","京都","滋賀","奈良","和歌山"],
	["鳥取","島根","岡山","広島","山口"],
	["徳島","香川","愛媛","高知"],
	["福岡","佐賀","長崎","熊本","大分","宮崎"],
	["沖縄"],
	["香港","上海","北京","大连","韩国","台湾","广州"]
	
];

function get_city(){
	
	//获得省份下拉框的对象
	var sltProvince=document.web_form.w_area;
	//获得城市下拉框的对象
	var sltCity=document.web_form.w_county;

	//得到对应省份的城市数组
	var provinceCity=city[sltProvince.selectedIndex - 1];

	//清空城市下拉框，仅留提示选项
	sltCity.length=1;

	//将城市数组中的值填充到城市下拉框中
	for(var i=0;i<provinceCity.length;i++){
		sltCity[i+1]=new Option(provinceCity[i],provinceCity[i]);
	}
}