Question

inside the checkout onepage billing.phtml I have to do several checks and even remove or add stuff to the cart.
But I don’t seem to find how to do that

how can I change the cart from within an template?

Thanks,
Joe

Answer 1

From that file you can use $this->getQuote() to get a Mage_Sales_Model_Quote object. Methods you might find useful on that object are getAllItems(), addItem() and removeItem().