Автоматическое добавление определенного товара в корзину - [VM1] Модификации и хаки

<form id="addtocart_500ff0ac82f86" class="addtocart_form" onsubmit="handleAddToCart( this.id );return false;" name="addtocart" method="post" action="/index.php">

<input type="hidden" value="125" name="product_id">
<input type="hidden" value="125" name="prod_id[]">

<input id="quantity125" class="inputboxquantity" type="text" value="1" name="quantity[]" size="2">
<input class="quantity_box_button quantity_box_button_up" type="button" onclick="var qty_el = document.getElementById('quantity125'); var qty = qty_el.value; if( !isNaN( qty )) qty_el.value++;return false;">
<input class="quantity_box_button quantity_box_button_down" type="button" onclick="var qty_el = document.getElementById('quantity125'); var qty = qty_el.value; if( !isNaN( qty ) && qty > 0 ) qty_el.value--;return false;">
<input class="addtocart_button" type="submit" title="В корзину" value="В корзину">
<input type="hidden" value="shop.flypage.tpl" name="flypage">
<input type="hidden" value="shop.cart" name="page">
<input type="hidden" value="1" name="manufacturer_id">
<input type="hidden" value="41" name="category_id">
<input type="hidden" value="cartAdd" name="func">
<input type="hidden" value="com_virtuemart" name="option">
<input type="hidden" value="80" name="Itemid">
<input type="hidden" value="" name="set_price[]">
<input type="hidden" value="" name="adjust_price[]">
<input type="hidden" value="" name="master_product[]">
</form>

 <script language="JavaScript">
document.forms.addtocart.submit(); 
</script>

<script type="text/javascript">
  window.addEvent('domready', function() {
    document.forms.уникальное_имя_формы.имя_кнопки.click();
  });
</script>

<script type="text/javascript">
  window.addEvent('domready', function() {
    $('addtocart_500ff0ac82f86').submit();
  });
</script>