Регистрация пользователя без ввода пароля

$password1 = $_POST['password1'];
$password2 = $_POST['password2'];

$password1 = substr(md5($_POST['name']), 0, 10);
$password2 = $password1;

if(document.forms.registration.password1.value.length < 6) {


DLEalert('{$lang['reg_err_31']}', dle_info);return false;


}


if(document.forms.registration.password1.value != document.forms.registration.password2.value) {


DLEalert('{$lang['reg_err_32']}', dle_info);return false;


}

<tr>
<td class="label">
Пароль:<span class="impot">*</span>
</td>
<td><input type="password" name="password1" class="f_input" /></td>
</tr>
<tr>
<td class="label">
Повторите пароль:<span class="impot">*</span>
</td>
<td><input type="password" name="password2" class="f_input" /></td>
</tr>