Adding/removing items from a JavaScript object with jQuery

I have a JavaScript object as follows:

var data = {items: [
    {id: "1", name: "Snatch", type: "crime"},
    {id: "2", name: "Witches of Eastwick", type: "comedy"},
    {id: "3", name: "X-Men", type: "action"},
    {id: "4", name: "Ordinary People", type: "drama"},
    {id: "5", name: "Billy Elliot", type: "drama"},
    {id: "6", name: "Toy Story", type: "children"}
]};

If I wanted to add/remove items to this list, how would I go about it using jQuery? The client wants this list to be dynamically modifiable.