登陆前后的变化

    <%
    if (Session["id"] != null && Session["id"].ToString() != "")
    {
     %>     <table style="width: 980px;font-size: 12px; height: 24px;" border="0" cellpadding="0" cellspacing="0">
            <tr>
                <td align="right" style="background-image: url(images/menu_bottom_bj.gif);">
                    <span style="color: skyblue">&nbsp;<span style="color: tomato"><strong>&nbsp;欢迎您:</strong></span></span><a href="/hr/member/PersonalMain.aspx?id=<%=Session["id"]%>" target="_self"><%=Session["username"].ToString() %><span
                            style="color: tomato"><strong>&nbsp;&nbsp;&nbsp;进入管理页</strong></span></a>
                   
</td>
               
            </tr>
        </table>
        
    <%
    }
    else
    {
     %>
                   </td>
            </tr>
                        
                        <tr>
                            <td align="right" style="width: 980px; height: 24px; background-image: url(images/menu_bottom_bj.gif);">
                                &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;
                                用户名：<asp:TextBox ID="UserName" runat="server" Height="15px" Width="65px"></asp:TextBox>&nbsp;
                                密码：<asp:TextBox ID="Password"
                                    runat="server" TextMode="Password" Height="15px" Width="67px"></asp:TextBox>
                                &nbsp; &nbsp; &nbsp;<asp:ImageButton ID="Button3" runat="server" ImageUrl="~/hr/images/login.gif" OnClick="Button3_Click" />
                                &nbsp; &nbsp; &nbsp;&nbsp;
                            </td>
                        </tr>
    <%} %>