I added this to my webpage and the customers can log in directly from there without seeing the Mikrotik logo. It only shows if they have the wrong username or password and when they logout.
This is good enough for me for now!
<h3>Wireless Internet Usage (Worcester)</h3>
<div class="right_articles">
<form name="login" action="
http://ip-address/user/" method="post">
<input type="hidden" name="process" value="login">
<input type="hidden" name="page" value="start">
<input type="hidden" name="subs" value="">
<table id="table3">
<tr>
<td>
<table id="table4">
<tr>
<td align="right">
login
</td>
<td>
<input type="text" name="user" value="" />
</td>
</tr>
<tr>
<td align="right">
password
</td>
<td>
<input type="password" name="password" />
</td>
</tr>
<tr>
<td colspan="2" align="right">
<input type="submit" name="btn_login"
value="Login">
</td>
</tr>
</table>
</td>
</tr>
</table>
</form>
</div>