parsing multi dimensional json array

Can anyone help me how to parse this json string using javascript or jQuery:

"[{"name":"null","id":"1","isLazy":true,"children":
    [    {"name":"Appliances","id":"2","isLazy":true,"children":
        [
            {"name":"Aircon","id":"4","isLazy":false},
            {"name":"Oven","id":"7","isLazy":false},
            {"name":"Freezer","id":"8","isLazy":false}
        ]
},
        {"name":"SUV","id":"3","isLazy":true,"children":
            [
                {"name":"Car1","id":"9","isLazy":false},
                {"name":"Car2","id":"10","isLazy":false}
            ]
        }
    ]
}]"

Code (JavaScript):

this json came from dynamic record from database. THanks in advance, i hope someone help me.