<%@ page contentType="text/html;charset=gb2312"%>
<html>
<head>
</head>
<body>
<form name="doublecombo">
<p>
<select name="example" size="1" onChange="redirect
(this.options.selectedIndex)">
<option>javascript</option>
<option>vbscript</option>
<option>java</option>
</select>
<select name="stage2" size="1">
<option value="http://wsabstract.com">Website
Abstraction</option>
<option
value="http://www.dynamicdrive.com">Dynamicdrive.com</option
>
<option value="http://javascript.internet.com">javascript</option>
</select>
<input type="button" name="test" value="Go!"
onClick="go()">
</p>
<script>
<!--
/*
Double Combo Script Credit
By Website Abstraction (www.wsabstract.com)
Over 200+ free javascripts here!
*/
var groups=document.doublecombo.example.options.length
var group=new Array(groups)
for (i=0; i<groups; i++)
group[i]=new Array()
group[0][0]=new Option("Website
Abstraction","http://wsabstract.com")
group[0][1]=new Option
("Dynamicdrive.com","http://www.dynamicdrive.com")
group[0][2]=new Option
("javascript","http://javascript.internet.com")
group[1][0]=new Option("萬旭javascript倉
庫","http://www.wanxu.com")
group[1][1]=new Option
("javascript2000","http://www.javascript2000.com")
group[1][2]=new Option("無憂腳本","http://www.51js.com")
group[2][0]=new Option("Hotbot","http://www.hotbot.com")
group[2][1]=new Option("Infoseek","http://www.infoseek.com")
group[2][2]=new Option("Excite","http://www.excite.com")
group[2][3]=new Option("Lycos","http://www.lycos.com")
var temp=document.doublecombo.stage2
function redirect(x){
for (m=temp.options.length-1;m>0;m--)
temp.options[m]=null
for (i=0;i<group[x].length;i++){
temp.options[i]=new Option(group[x][i].text,group[x][i].value)
}
temp.options[0].selected=true
}
function go(){
location=temp.options[temp.selectedIndex].value
}
//-->
</script>
</form>
</body>
</html>
<html>
<head>
<title>簡單級聯菜單</title>
</head>
<body>
<!— group 的下拉列表-------------->
<select name="sltGroupID"
onChange="javascript:change_select(this.options[this.selectedIndex].value)">
<option value="0">用戶組0</option>
<option value="1">用戶組1</option>
<option value="2">用戶組2</option>
<option value="3">用戶組3</option>
</select>
<!— user 的下拉列表-------------->
<select name="sltUserID">
<option value="0">用戶……a1</option>
</select>
<script language = "JavaScript">
//讀入 rsUser的數據
arrSelect=new Array();
arrSelect[0] = new Array("用戶……a0",0,0);
arrSelect[1] = new Array("用戶……b1",1,1);
arrSelect[2] = new Array("用戶……c2",2,2);
arrSelect[3] = new Array("用戶……d1",3,3);
arrSelect[4] = new Array("用戶……d2",3,2);
//更新 user 下拉列表的函數
function change_select(selvalue)
{
document.all.sltUserID.length=0; //清除
var i;
for(i=0;i<arrSelect.length;i++)
{
if(arrSelect[i][1]==selvalue)
{
var newOption=new Option(arrSelect[i][0],arrSelect[i][2]);
document.all.sltUserID.add(newOption);
}
}
}
</script>
</body>
</html>