function setcity(provinceid, cityid) {

	var province = document.getElementById(provinceid).value;

    switch (province) {

        case "美国" :

            var cityOptions = new Array(

            "纽约(*)", "纽约",

            "洛杉矶", "洛杉矶",

            "芝加哥", "芝加哥",

            "波士顿", "波士顿",

            "伯明翰", "伯明翰",

            "迈阿密", "迈阿密",

            "西雅图", "西雅图",

            "丹佛", "丹佛",

            "亚特兰大", "亚特兰大",
			
            "华盛顿", "华盛顿",

            "凤凰城", "凤凰城",

            "休斯敦", "休斯敦");

             break;

        case "中国" :

            var cityOptions = new Array(

            "港澳台", "港澳台",

            "北京", "北京",

            "上海", "上海",

            "天津", "天津",

            "重庆", "重庆",

            "江浙", "江浙",

            "江西", "江西",

            "东北三省", "东北三省",

            "湖南湖北", "湖南湖北",

            "河南河北", "河南河北",

            "山东", "山东",

            "山西", "山西",

            "陕西", "陕西",

            "广东", "广东",

            "广西", "广西",

            "海南", "海南",

            "福建", "福建",

            "云贵", "云贵",

            "四川", "四川",

            "西藏新疆内蒙", "西藏新疆内蒙",

            "安徽", "安徽",

            "青海甘肃宁夏", "青海甘肃宁夏");

            break;

        case "亚洲" :

            var cityOptions = new Array(

            "新加坡", "新加坡",

            "日本", "日本",

            "韩国", "韩国");

            break;

        case "其他" :

            var cityOptions = new Array(

            "欧洲", "欧洲",

            "北美其他", "北美其他",

            "南美", "南美",

            "非洲", "非洲",

            "大洋洲", "大洋洲");

            break;

        default:

            var cityOptions = new Array("选择城市", "");

            break;

    }

	

	var cityObject = document.getElementById(cityid);

	cityObject.options.length = 0;

	cityObject.options[0] = new Option("选择城市", "");

	var j = 0;

	for(var i = 0; i < cityOptions.length/2; i++) {

		j = i + 1;

	    cityObject.options[j] = new Option(cityOptions[i*2],cityOptions[i*2+1]);

	}

}



function initprovcity(provinceid, province) {

	var provObject = document.getElementById(provinceid);

    for(var i = 0; i < provObject.options.length; i++) {

        if (provObject.options[i].value == province) {

        	provObject.selectedIndex = i;

			break;

        }

    }

    //setcity(provinceid, cityid);

}



function showprovince(provinceid, cityid, province) {

	var provinces = new Array(

		"美国", "亚洲", "中国", "其他"

	);



	var html = "<select name=\"" + provinceid + "\" id=\"" + provinceid + "\" onchange=\"setcity('" + provinceid + "', '" + cityid + "');\">";

	html = html + "<option value=\"\">选择国家地区</option>";

	for(var i = 0; i < provinces.length; i++) {

		html = html + "<option value=\"" + provinces[i] + "\">" + provinces[i] + "</option>";

	}

	html = html + "</select>";

	document.write(html);



	initprovcity(provinceid, province);



}



function showcity(cityid, city) {





	var html = "&nbsp;<select name=\"" + cityid + "\" id=\"" + cityid + "\">";

	if(city == "") {

		html = html + "<option value=\"\">选择城市</option>";

	} else {

		html = html + "<option value=\"" + city + "\">" + city + "</option>";

	}

	html = html + "</select>";

	document.write(html);

}