<p>username: <input type="text" name="u" value="<?=isset($i_u)?$i_u:''?>"></p>
<p>password: <input type="password" name="p"></p>
<p>username: <input type="text" name="u" value="<?=isset($i_u)?$i_u:''?>"></p>
<p>password: <input type="password" name="p"></p>