ecwid_addtocart

var product = {
  id: 33005,
  quantity: 1,
  options: {
        checkboxOption: "test",
        checkboxOption2: "111,222",
        checkboxOption3: ["aaa", "ccc"]
  },
  callback: function(success, product, cart) {
        console.log(success); // true or false
        console.log(product.name);
  }
}

Ecwid.Cart.addProduct(product);