我想完成一个这样的功能，当鼠标放在大类上的时候，大类下方小时小类

如何完成这个效果呢...

<script type="text/javascript">
function g(o) {return document.getElementById(o);}
function Li(n) {for(var i=1;i<2;i++){if(n==i){g("2_"+i).style.display="block";}else{g("2_"+i).style.display="none";}}}
</script>
                   <%
              dim sql,rs
            sql="select * from content where user='zhuzhu' and BigClassName='心情日志'"
            set rs=server.CreateObject("adodb.recordset")
            rs.open sql,conn,1,1
          %>
          <TD class=blog align=middle>
          <div id="1_1">
          <a href="#" onmouseover="Li(1);">心情日志</a>
          </div>
          </TD>
          <div id="2_1" style="display:none;">
              <%
                if not rs.eof then
                do while not rs.eof
            %>
                <%=rs("SmallClassName")%>|
            <%
                rs.movenext
                loop
                end if%>
          </div>



我按照你的方法改了一下不行呀