<form name="form1" id="form1" method="post" action="?step=3">
<input type="hidden" name="service" value="2" >
<input type="hidden" name="id" value="<?=$id?>">
<input type="hidden" name="type_payment" value="<?=$type_payment?>">
<input type="submit" class="submit" name="submit" value="Оплатить из кошелька <?=$koshel[$type_payment]?> руб." />
</form>