JSON省市联动

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<script src="Area_mini.js" type="text/javascript"></script>
<script src="jquery.js" type="text/javascript"></script>
<script type="text/javascript">
$(document).ready(function() {
    $("#areaProvince").change(function() {
        LoadCity2();
        //LoadCounty();
    });
     LoadArea2('辽宁', '沈阳');
});

function LoadArea2(prov, city) {
    LoadProvince(prov);
    LoadCity2(city);
}
function LoadArea3(prov, city, County) {
    LoadProvince(prov);
    LoadCity3(city);
    LoadCounty(County);
}
function LoadProvince(values) {
    $("#areaProvince").empty();
    for (var id in countryAreaData) {
        $("#areaProvince").append(" <option value='" + id + "'>" + id + "</option>");
    }
    if (typeof(values) == "string") {
        $("#areaProvince option[value=" + values + "]").attr("selected", true)
    }
}
function LoadCity3(values) {
    $("#areaCity").empty();
    $("#areaCounty").empty();
    var s1 = $("#areaProvince option:selected").val();
    for (var id2 in countryAreaData[s1]) {

        $("#areaCity").append(" <option value='" + id2 + "'>" + id2 + "</option>");
    }
    if (typeof(values) == "string") {
        $("#areaCity option[value=" + values + "]").attr("selected", true)
    }
}
function LoadCity2(values) {
    $("#areaCity").empty();
    var s1 = $("#areaProvince option:selected").val();
    for (var id2 in countryAreaData[s1]) {
        $("#areaCity").append(" <option value='" + id2 + "'>" + id2 + "</option>");
    }
    if (typeof(values) == "string") {
        $("#areaCity option[value=" + values + "]").attr("selected", true)
    }
}

function LoadCounty(values) {
    $("#areaCounty").empty();
    var str1 = $("#areaProvince option:selected").val();
    var str2 = $("#areaCity option:selected").val();

    for (i = 0; i < countryAreaData[str1][str2].length; i++) {
        str = countryAreaData[str1][str2][i];
        $("#areaCounty").append(" <option value='" + str + "'>" + str + "</option>");
    }
    if (typeof(values) == "string") {
        $("#areaCounty option[value=" + values + "]").attr("selected", true)

    }
}
</script>
<title>无标题文档</title>
</head>

<body>
<select id="areaProvince" name="areaProvince" style=" 100px">
    <option value="0">省份</option>
</select>
<select id="areaCity" name="areaCity" style=" 120px">
    <option value="0">地级市</option>
</select>

</body>
</html>

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