<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title></title>
<script>
var shenArr = new Array(5);
shenArr["广东"] = ["广州","深圳","韶关","汕头","茂名"];
shenArr["湖南"] = ["长沙","张家界","株洲","岳阳","吉首"];
shenArr["湖北"] = ["武汉","宜昌","荆州","黄冈","仙桃"];
shenArr["安徽"] = ["合肥","黄山"];
shenArr["河南"] = ["郑州","开封","洛阳","信阳"];
function getShen(){
var s = document.getElementById("shen");
for(var v in shenArr){
s.add(new Option(v,v),null);
}
}
function getCity(){
var s = document.getElementById("shen");
var c = document.getElementById("city");
var v = s.value;
c.options.length = 0;
for(var i in shenArr[v] ){
c.add(new Option(shenArr[v][i],shenArr[v][i]),null);
}
}
</script>
</head>
<body onload="getShen()">
省:
<select id="shen" onchange="getCity()">
<option value="0">--请选择--
</option>
</select>
市:
<select id="city"></select>
</body>
</html>
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