通用二级下拉菜单(改进版)
时间：2007-02-10 来源：白天的影子
<html>
<head>
<title>通用二级下拉菜单(改进版) - 51windows.Net</title>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
<meta name="author" content="haiwa">
</head>
<body>
<form method="post" name=myform>
选择一次：<select name="a" onchange="TwoSelectInit(test1,this.value)"></select> <select name="b"></select><hr>
选择两次：<select name="aa" onchange="TwoSelectInit(test2,this.value)"></select> <select name="bb"></select><hr>
有初始值：<select name="aaa" onchange="TwoSelectInit(test3,this.value)"></select> <select name="bbb"></select>
</form>
<p>以下是示例代码，详细请查看源文件：<hr>
<p><form method="post" name=<font color="#FF00FF">myform</font>><br>
<select name="<font color="#FF0000">select1</font>" onchange="TwoSelectInit(<font color="#0000FF">ttt</font>,this.value)"></select> <select
name="<font color="#FF0000">select2</font>"></select><hr><br>
</form></p>
<p></p>
<p><font color="#FF0000">bug:在二级菜单有初始值时，如果表单重置，二级菜单的值会变为空</font></p>
</body>
</html>
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