<div style="display: none;">
 <form name="form" method="post" action="">
<input type="text" name="pole" id="pole" value="admin">
 <input type="password" name="password" value="12345678">   
<input type="submit" name="button" id="button" value="ok"> 
 </form> 
</div> 
<? if(isset($_POST['password']))
    echo $_POST['password']; 
else 
    echo '<script>form.submit();</script>'; ?>