是不是连动下拉菜单?
<form method=post>
<select onchange=chg() name=a>
<option>1
<option>2
<option>3
</select>
<select name=b>
<option>1
<option>2
<option>3
</select>
</form>
<script>
var arr=[["1","2","3"],["a","b","c"],["m","n","k"]]
function chg(){
var i=document.all.a.selectedIndex
with(document.all.b){
length=0;
for(j=0;j<arr[i].length;j++)
options.add(new Option(arr[i][j],arr[i][j]))
}
}
</script>
<form method=post>
<select onchange=chg() name=a>
<option>1
<option>2
<option>3
</select>
<select name=b>
<option>1
<option>2
<option>3
</select>
</form>
<script>
var arr=[["1","2","3"],["a","b","c"],["m","n","k"]]
function chg(){
var i=document.all.a.selectedIndex
with(document.all.b){
length=0;
for(j=0;j<arr[i].length;j++)
options.add(new Option(arr[i][j],arr[i][j]))
}
}
</script>
<OPTION VALUE= "one" >a</option >
<OPTION VALUE= "two" >b</option >
</SELECT >
<input id=input>
<OPTION VALUE= "one" >a</option >
<OPTION VALUE= "two" >b</option >
</select>
<input type="text" name="aa" size="10">就是选一个列表项时。文本框输出相应数据库里的信息。
在同一个页面中。
<OPTION VALUE="index.asp?v=a">a</option >
<OPTION VALUE="index.asp?v=b">b</option >
</select>
<input type="text" name="aa" size="10" value=<%=rs("v")%>>