Is is like every product has its own currency? In that case, we have to chang...

Is is like every product has its own currency? In that case, we have to change this http://cgit.drupalcode.org/dc_ajax_add_cart/tree/dc_ajax_add_cart.module... and all other occurences of commerce_default_currency(). There must be some currency data associated with every product, we have to use that.