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HTML/XHTML教程
W3C教程(9):W3C XPath 活动
W3C教程(10):W3C XQuery 活动
W3C教程(8):W3C XML Schema 活动
W3C教程(5):W3C XML 活动
W3C教程(7):W3C XSL 活动
W3C教程(4):W3C XHTML 活动
W3C教程(3):W3C HTML 活动
W3C教程(2):W3C 程序
W3C教程(6):W3C CSS 活动
W3C教程(1):认识W3C
XHTML CSS网站设计的优势和问题
英文:A链接标记ie下会自动补全href
如何通过W3C验证?
XHTML标签在CSS中对应的属性及用法
网页前端开发CSS相关团队协作
网页制作初学者:学用HTML的超链接A标记
UTF-8和GB2312网页编码
让访客记住网站的三段实用代码
网易博客中用到的简单网页代码
HTML教程:title属性与alt属性

HTML/XHTML教程 中的 连动下拉菜单


出处:互联网   整理: 软晨网(RuanChen.com)   发布: 2009-11-04   浏览: 58 ::
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<html>
<head>
<title>List</title>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
<script LANGUAGE="javascript">
<!--
var onecount;
onecount=0;
   
subcat = new Array();
subcat[0] = new Array("徐汇区","01","001");
subcat = new Array("嘉定区","01","002");
subcat = new Array("黄浦区","01","003");
subcat = new Array("南昌市","02","004");
subcat = new Array("九江市","02","005");
subcat = new Array("上饶市","02","006");

onecount=6;

function changelocation(locationid)
    {
    document.myform.smalllocation.length = 0;

    var locationid=locationid;
    var i;
    document.myform.smalllocation.options[0] = new Option('====所有地区====','');
    for (i=0;i < onecount; i++)
        {
            if (subcat[i] == locationid)
            {
            document.myform.smalllocation.options[document.myform.smalllocation.length] = new Option(subcat[i][0], subcat[i]);
            }       
        }
       
    }   

//-->
</script>
</head>
<body>
<form name="myform" method="post">
    <select name="biglocation" onChange="changelocation(document.myform.biglocation.options[document.myform.biglocation.selectedIndex].value)">
        <option value="01" selected>上海</option>
        <option value="02">江西</option>
    </select>
    <select name="smalllocation">
        <option selected value="">==所有地区==</option>
    </select>
</form>
<script LANGUAGE="javascript">
<!--
    changelocation(document.myform.biglocation.options[document.myform.biglocation.selectedIndex].value);

//-->
</script>
</body>
</html>