1，新建一名为login.htm的静态网页文件，作为登录页面，如图
body标签代码
<body onkeydown ="enterLogin()"> <!--添加按下键盘事件-->
<div style="text-align: center" mce_style="text-align: center">
<table border="1" cellpadding="1">
<tr>
<td align="center" style="width: 100px; height: 20px; background-color: #99cccc"
valign="middle">
用户名：</td>
<td align="center" style="width: 74px; height: 20px; background-color: #99cccc" valign="middle">
<input id="txtusername" style="width: 111px; height: 19px" type="text" onblur ="checkuser()" /></td>
<td align="center" style="width: 199px; height: 20px; background-color: #99cccc"
valign="middle"><img src="" id ="imgCheck" style = "visibility :hidden; "/ ><span id ="unMessage">
</span></td>
</tr>
<tr>
<td align="center" style="width: 100px; height: 29px; background-color: #99cccc"
valign="middle">
密码：</td>
<td align="center" style="width: 74px; height: 29px; background-color: #99cccc" valign="middle">
<input id="txtpwd" style="width: 107px; height: 17px" type="password" /></td>
<td align="center" style="width: 199px; height: 29px; background-color: #99cccc"
valign="middle"><span id ="pwdMessage"></span>
</td>
</tr>
<tr>
<td align="center" colspan="3" style="background-color: #99cccc" mce_style="background-color: #99cccc" valign="middle">
<input id="cbRememberPwd" type="checkbox" />记住密码一个月</td>
</tr>
<tr>
<td align="center" colspan="3" style="background-color: #99cccc" mce_style="background-color: #99cccc" valign="middle">
<input id="btnOK" type="button" value="登录" onclick ="login()" />
<input id="btnReset" type="button" value="重置" onclick ="reset()" /></td>
</tr>
</table>
</div>
</body>
2，在login.h
