<title>无标题文档</title>
<script language=JAVAscript>
function ChangeItem(){
var tindex,tid
tindex = document.form1.slt.selectedIndex;
tid = document.form1.slt.options[tindex].value;
location.href = "select.asp?b_classid="+tid;
}
</Script>
</head>
<body>
<form name="form1" method="post" action="">
<select name="slt" onChange="ChangeItem()">
<option value="0">请选择</option>
<%
set rs=server.createobject("adodb.recordset")
rs.open "select * from big_class",conn,1,3
do while not rs.eof%>
<option value="<%=rs("id")%>"><%=rs("b_class")%></option>
<%rs.movenext
loop
'rs.close
%>
</select>
<iframe ID="1" src="select.asp" frameborder="0" scrolling="no" width="100%" HEIGHT="30"></iframe>
</form>
</body>
</html>
怎么让个只刷新iframe里面的页面,而不刷新父页面
再哪里加代码啊??
