轻松实现页面提交时，显示“提交中..” (转)

原文http://www.cnblogs.com/tintown/archive/2005/03/08/114963.html
上次我在文章“

<div id="doing" runat="server" style="Z-INDEX: 12000; LEFT: 0px; WIDTH: 100%; CURSOR: wait; POSITION: absolute; TOP: 0px; HEIGHT: 100%">
            <table width="100%" height="100%">
                <tr align="center" valign="middle">
                    <td>
                        <table width="169" height="62" bgcolor="#99cccc" style="FILTER: Alpha(Opacity=75); WIDTH: 169px; HEIGHT: 62px">
                            <tr align="center" valign="middle">
                                <td>页面提交中.<br>
                                    Loading.</td>
                            </tr>
                        </table>
                    </td>
                </tr>
            </table>
        </div>