<script LANGUAGE='JavaScript'>
function MenuChange(){
if (document.form.lbid.options[0].selected) { with (document.form.xlbid) { for (var i = options.length; i > 0; i--) options[i] = null;
options[0] = new Option('服装名品');options[0].value='2';
options[1] = new Option('饰品季风');options[1].value='7';
options[2] = new Option('都市丽人');options[2].value='8';
options[0].selected = true; }}
if (document.form.lbid.options[1].selected) { with (document.form.xlbid) { for (var i = options.length; i > 0; i--) options[i] = null;
options[0] = new Option('飘逸秀发');options[0].value='9';
options[1] = new Option('香体美颜');options[1].value='3';
options[2] = new Option('窈窕淑女');options[2].value='10';
options[0].selected = true; }}
if (document.form.lbid.options[2].selected) { with (document.form.xlbid) { for (var i = options.length; i > 0; i--) options[i] = null;
options[0] = new Option('男装文化');options[0].value='11';
options[1] = new Option('财富人生');options[1].value='12';
options[2] = new Option('名人访谈');options[2].value='13';
options[0].selected = true; }}
if (document.form.lbid.options[3].selected) { with (document.form.xlbid) { for (var i = options.length; i > 0; i--) options[i] = null;
options[0] = new Option('office故事');options[0].value='14';
options[1] = new Option('巾帼谋略');options[1].value='15';
options[2] = new Option('涉世之初');options[2].value='16';
options[0].selected = true; }}
if (document.form.lbid.options[4].selected) { with (document.form.xlbid) { for (var i = options.length; i > 0; i--) options[i] = null;
options[0] = new Option('美容常识');options[0].value='17';
options[1] = new Option('美容中心');options[1].value='18';
options[2] = new Option('美容机构');options[2].value='19';
options[0].selected = true; }}
if (document.form.lbid.options[5].selected) { with (document.form.xlbid) { for (var i = options.length; i > 0; i--) options[i] = null;
options[0] = new Option('服饰搭配');options[0].value='4';
options[1] = new Option('裁剪DIY');options[1].value='5';
options[2] = new Option('靓装DIY');options[2].value='6';
options[0].selected = true; }}
if (document.form.lbid.options[6].selected) { with (document.form.xlbid) { for (var i = options.length; i > 0; i--) options[i] = null;
options[0] = new Option('奥迪');options[0].value='20';
options[0].selected = true; }}}</script>
<form action="save.asp" method="post" name="form">
<table width="650" align="center" cellpadding="2">
<tr valign="middle" bgcolor="#f1f1f1">
<td width="122" height="25" align="center">文章归类 </td>
<td width="508" height="25">
<select name="lbid" onChange="MenuChange(this)">
<option>选择大类</option>
<option value="1">服饰名品</option><option value="2">伊人地带</option><option value="4">名士品味</option><option value="7">职场丽人</option><option value="8">美容美体</option><option value="9">个性DIY</option>
</select> <select name="xlbid">
<option>选择子类</option>
</select>
</td>
</tr>
</table>
</form>
function MenuChange(){
if (document.form.lbid.options[0].selected) { with (document.form.xlbid) { for (var i = options.length; i > 0; i--) options[i] = null;
options[0] = new Option('服装名品');options[0].value='2';
options[1] = new Option('饰品季风');options[1].value='7';
options[2] = new Option('都市丽人');options[2].value='8';
options[0].selected = true; }}
if (document.form.lbid.options[1].selected) { with (document.form.xlbid) { for (var i = options.length; i > 0; i--) options[i] = null;
options[0] = new Option('飘逸秀发');options[0].value='9';
options[1] = new Option('香体美颜');options[1].value='3';
options[2] = new Option('窈窕淑女');options[2].value='10';
options[0].selected = true; }}
if (document.form.lbid.options[2].selected) { with (document.form.xlbid) { for (var i = options.length; i > 0; i--) options[i] = null;
options[0] = new Option('男装文化');options[0].value='11';
options[1] = new Option('财富人生');options[1].value='12';
options[2] = new Option('名人访谈');options[2].value='13';
options[0].selected = true; }}
if (document.form.lbid.options[3].selected) { with (document.form.xlbid) { for (var i = options.length; i > 0; i--) options[i] = null;
options[0] = new Option('office故事');options[0].value='14';
options[1] = new Option('巾帼谋略');options[1].value='15';
options[2] = new Option('涉世之初');options[2].value='16';
options[0].selected = true; }}
if (document.form.lbid.options[4].selected) { with (document.form.xlbid) { for (var i = options.length; i > 0; i--) options[i] = null;
options[0] = new Option('美容常识');options[0].value='17';
options[1] = new Option('美容中心');options[1].value='18';
options[2] = new Option('美容机构');options[2].value='19';
options[0].selected = true; }}
if (document.form.lbid.options[5].selected) { with (document.form.xlbid) { for (var i = options.length; i > 0; i--) options[i] = null;
options[0] = new Option('服饰搭配');options[0].value='4';
options[1] = new Option('裁剪DIY');options[1].value='5';
options[2] = new Option('靓装DIY');options[2].value='6';
options[0].selected = true; }}
if (document.form.lbid.options[6].selected) { with (document.form.xlbid) { for (var i = options.length; i > 0; i--) options[i] = null;
options[0] = new Option('奥迪');options[0].value='20';
options[0].selected = true; }}}</script>
<form action="save.asp" method="post" name="form">
<table width="650" align="center" cellpadding="2">
<tr valign="middle" bgcolor="#f1f1f1">
<td width="122" height="25" align="center">文章归类 </td>
<td width="508" height="25">
<select name="lbid" onChange="MenuChange(this)">
<option>选择大类</option>
<option value="1">服饰名品</option><option value="2">伊人地带</option><option value="4">名士品味</option><option value="7">职场丽人</option><option value="8">美容美体</option><option value="9">个性DIY</option>
</select> <select name="xlbid">
<option>选择子类</option>
</select>
</td>
</tr>
</table>
</form>
第一个索引是0,第二个是1 ,依次类推。