一个表单连动的问题大家帮我看看谢谢：）（（（+分！）））

asprobin 2005-01-26 08:48:13

我这里有个表单有一个select ftype 一个select searchType
----------------------------------------
<select name="ftype" class="kuang">
<option value="2">搜索电影</option>
<option value="0">音乐</option>
</select>
--------------------------------------
我想当我select ftype 选择搜索电影时
select searchType 显示为
<select name="searchType" class="kuang">
<option value="0">按影片名</option>
<option value="1">演员名</option>
</select>
当我select ftype 选择音乐时
select searchType 显示为
<select name="searchType" class="kuang">
<option value="0">歌手</option>
<option value="1">歌名</option>
</select>
---------------------------
怎么做呢帮我看看吧谢谢！

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hqcsx 2005-01-26

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'三级下拉框连动
'
'数据库：
'location
'表1 loaction 所在地表
' 字段
' loactionid
' loactionname 名字
'表2 district 所在的地区表
' 字段
' locationid
' districtid
' districtname
'表3 village 所在的县区表
' 字段
' districtid
' villageid
' villagename

<%Option Explicit%>
<html>
<head>
<title>List</title>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
<%
dim conn
dim rs
dim sql
dim count
dim rs1
dim sql1
dim rs2
dim sql2
dim count2

set conn=server.createobject("adodb.connection")
conn.open"provider=sqloledb;data source=192.168.0.33;uid=sa;pwd=;database=location;"

sql = "select * from district order by locationid asc"
set rs = conn.execute(sql)
%>
<script language = "JavaScript">
var onecount;
onecount=0;
subcat = new Array();
<%
count = 0
do while not rs.eof
%>
subcat[<%=count%>] = new Array("<%= trim(rs("districtname"))%>","<%= trim(rs("locationid"))%>","<%= trim(rs("districtid"))%>");
<%
count = count + 1
rs.movenext
loop
rs.close
set rs=nothing
%>
onecount=<%=count%>;

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

var locationid=locationid;
var i;
document.myform.smalllocation.options[0] = new Option('==所选城市的地区==','');
for (i=0;i < onecount; i++)
{
if (subcat[i][1] == locationid)
{
document.myform.smalllocation.options[document.myform.smalllocation.length] = new Option(subcat[i][0], subcat[i][2]);
}
}

}
</script>

<%sql2 = "select * from village order by districtid asc"
set rs2 = conn.execute(sql2)
%>
<script language = "JavaScript">
var onecount2;
onecount2=0;
subcat2 = new Array();
<%
count2 = 0
do while not rs2.eof
%>
subcat2[<%=count2%>] = new Array("<%= trim(rs2("villagename"))%>","<%= trim(rs2("districtid"))%>","<%= trim(rs2("villageid"))%>");
<%
count2 = count2 + 1
rs2.movenext
loop
rs2.close
set rs2=nothing
%>
onecount2=<%=count2%>;

function changelocation2(villageid)
{
document.myform.village.length = 0;

var villageid=villageid;
var j;
document.myform.village.options[0] = new Option('==所选地区的县区==','');
for (j=0;j < onecount2; j++)
{
if (subcat2[j][1] == villageid)
{
document.myform.village.options[document.myform.village.length] = new Option(subcat2[j][0], subcat2[j][2]);
}
}

}
</script>

</head>
<body>
<form name="myform" method="post">
题目：<input type="text" name="T2" size="20">

来源：<input type="text" name="T3" size="20">

分类：<select name="biglocation" onChange="changelocation(document.myform.biglocation.options[document.myform.biglocation.selectedIndex].value)" size="1">
<option selected>请选择你所在的省份</option>
<%

sql1 = "select * from location order by locationname asc"
set rs1 = conn.Execute (sql1)
do while not rs1.eof
%>
<option value="<%=trim(rs1("locationid"))%>"><%=trim(rs1("locationname"))%></option>

<%
rs1.movenext
loop
rs1.close
set rs1 = nothing
conn.Close
set conn = nothing
%>
</select><select name="smalllocation" onChange="changelocation2(document.myform.smalllocation.options[document.myform.smalllocation.selectedIndex].value)">
<option selected value="">==所有地区==</option>
</select><select name="village" size="1">
<option selected>==所有县区==</option>
</select>

关键词：<input type="text" name="T4" size="20">

内容：<textarea rows="9" name="S1" cols="51"></textarea>
</form>

</body>
</html>

梅雪香 2005-01-26

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<html>
<head>
<script language=javascript>
var arr="浙江|江苏|安徽|江西";

var arr0 = "杭州|宁波|温州|绍兴"; //这些数据可以从数据库中取得
var arr1 = "南京|苏州|无锡|常州";
var arr2 = "合肥|翕县|黄山|祁门";
var arr3 = "南昌|九江|赣州|上饶";

var arr00 = "杭州A区|杭州B区";
var arr01 = "宁波A区|宁波B区";
var arr02 = "温州A区|温州B区";
var arr03 = "绍兴A区|绍兴B区";

var arr10 = "南京A区|南京B区";
var arr11 = "苏州A区|苏州B区";
var arr12 = "无锡A区|无锡B区";
var arr13 = "常州A区|常州B区";

var arr20 = "合肥A区|合肥B区";
var arr21 = "翕县A区|翕县B区";
var arr22 = "黄山A区|黄山B区";
var arr23 = "祁门A区|祁门B区";

var arr30 = "南昌A区|南昌B区";
var arr31 = "九江A区|九江B区";
var arr32 = "赣州A区|赣州B区";
var arr33 = "上饶A区|上饶B区";

//alert(eval("arr"+2+1));
function AddOptions(dltObj,arrObj)
{
dltObj.innerHTML="";
var arrLocation=arrObj.split("|");
for(var i=0;i<arrLocation.length;i++){
var opt=document.createElement("OPTION");
dltObj.add(opt);
opt.value=i;
opt.text=arrLocation[i];
}
}
function init(){
AddOptions(dltProvince,eval('arr'));
AddOptions(dltCity,eval('arr'+dltProvince.selectedIndex));
AddOptions(dltArea,eval('arr'+dltProvince.selectedIndex+dltCity.selectedIndex));
}
</script>
</head>
<body onLoad="init();">
<table width="300" cellpading="0" cellspacing="0" border="0">
<tr>
<td width="100"><select id="dltProvince" onchange="AddOptions(dltCity,eval('arr'+dltProvince.selectedIndex));AddOptions(dltArea,eval('arr'+dltProvince.selectedIndex+dltCity.selectedIndex));" style="width:100%"></select>
</td>
<td width="100"><select id="dltCity" onchange="AddOptions(dltArea,eval('arr'+dltProvince.selectedIndex+dltCity.selectedIndex));" style="width:100%"></select>
</td>
<td width="100"><select id="dltArea" style="width:100%"></select>
</td>
</tr>
</table>
</body>
</html>

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