新手上路,各位老师请指教
一个页面上有Button1,Button2,Panel1,Panel2,启动页面的时候有一个Panel1显示,Panel2不显示  
        当鼠标移动到Button1时,Panel1.Visible = true;Panel2.Visible = false;  
       当鼠标移动到Button2时,Panel2.Visible = true;Panel1.Visible = false;  
小弟是新手刚刚学.net想好好和各位大大学习,请说清楚点,急急急
------解决方案--------------------  <style type="text/css">
     .panel { display:none }  
   </style>
<div style="padding-top:20px;padding-left:10px;border:solid 1px #CCC">
     <input type="button" id="btn1" title="1" value="Button1" onmouseover="btn_over(this);" onmouseout="btn_out(this);" />   
     <input type="button" id="btn2" title="2" value="Button2" onmouseover="btn_over(this);" onmouseout="btn_out(this);"; />
     <div>
       <asp:Panel ID="panel1" runat="server" CssClass="panel" > aaaaaa</asp:Panel>   
       <asp:Panel ID="panel2" runat="server" CssClass="panel" >bbbb</asp:Panel>
     </div>
   </div>
   </form>
   <script type="text/javascript">
     function btn_over(obj)
      {
        var s=obj.title;
        document.getElementById("panel"+s).style.display="block";
      }
     function btn_out(obj)
      {
        var s=obj.title;
        document.getElementById("panel"+s).style.display="none";
      }  
   </script>
------解决方案--------------------在button1上 加上  onmouseover= "PanelN.Visible = 'true'"
                onmouseout = "PanelN.Visible = 'false'"
看看效果吧
------解决方案--------------------更正:
<div>
       <asp:Panel ID="panel1" runat="server"  > aaaaaa</asp:Panel>   
       <asp:Panel ID="panel2" runat="server" CssClass="panel" >bbbb</asp:Panel>
     </div>
------解决方案--------------------HTML code
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default4.aspx.cs" Inherits="Default4" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
    <title>Untitled Page</title>
    <script type="text/javascript"> 
      function over(obj) 
       { 
         var s=obj.id; 
         document.getElementById("panel"+s).style.display="block"; 
       } 
      function out(obj) 
       { 
         var s=obj.id; 
         document.getElementById("panel"+s).style.display="none"; 
       } 
     
    </script>
</head>
<body>
    <form id="form1" runat="server">
        <input type="button" id="1" value="Button1" onmouseover="over(this);"
            onmouseout="out(this);" />
        <input type="button" id="2" value="Button2" onmouseover="over(this);"
            onmouseout="out(this);" />
        <br />
        <br />
            <br />
        <asp:Panel ID="panel1" runat="server" >
            panel1
        </asp:Panel>
        <b