dsy.add("0_30",["重庆"]);
dsy.add("0_30_0",["城口县","大足县","垫江县","丰都县","奉节县","合川市","江津市","开县","梁平县","南川市","彭水苗族土家族自治县","荣昌县","石柱土家族自治县","铜梁县","巫山县","巫溪县","武隆县","秀山土家族苗族自治县","永川市","酉阳土家族苗族自治县","云阳县","忠县","重庆市","潼南县","璧山县","綦江县"]);
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</script>
<script language = javascript>
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var opt0 = ["省份","地级市","市、县级市、县"];
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</head>
<body bgcolor="#e0e0e0" onload="setup()">
多级关联菜单:
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<select id="s1"><option>省份</option></select>
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<select id="s3"><option>市、县级市、县</option></select>
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</body>
</html>