What is wrong with this array?

I have swapped the one I modified with the original in the jcarousel dynamic load via javascript exmple. The error in IE which happens when the next button has reached the end of the items ‘url’ is null or not an object.

mine throws error in IE only when you hit the last item with the next button, and press again

var mycarousel_itemList = [
     {url: "02745710_zi.jpg", title: "shoe1"},
     {url: "02768399_zi.jpg", title: "shoe2"},
     {url: "02774522_zi.jpg", title: "shoe3"},
     {url: "sjp197_zi.jpg", title: "shoe4"},
     {url: "sjp203_zi.jpg", title: "shoe5"},
     {url: "sjp274_zi.jpg", title: "shoe6"},
     {url: "sjp276_zi.jpg", title: "shoe7"},
     {url: "sjx481_zi.jpg", title: "shoe8"},
     {url: "swp969_zi.jpg", title: "shoe9"},
     {url: "swy371_zi.jpg", title: "shoe10"},
     {url: "swy832_zi.jpg", title: "shoe11"},
     {url: "swy897_zi.jpg", title: "shoe12"}
];

demo example, no error

var mycarousel_itemList = [
    {url: "http://static.flickr.com/66/199481236_dc98b5abb3_s.jpg", title: "Flower1"},
    {url: "http://static.flickr.com/75/199481072_b4a0d09597_s.jpg", title: "Flower2"},
    {url: "http://static.flickr.com/57/199481087_33ae73a8de_s.jpg", title: "Flower3"},
    {url: "http://static.flickr.com/77/199481108_4359e6b971_s.jpg", title: "Flower4"},
    {url: "http://static.flickr.com/58/199481143_3c148d9dd3_s.jpg", title: "Flower5"},
    {url: "http://static.flickr.com/72/199481203_ad4cdcf109_s.jpg", title: "Flower6"},
    {url: "http://static.flickr.com/58/199481218_264ce20da0_s.jpg", title: "Flower7"},
    {url: "http://static.flickr.com/69/199481255_fdfe885f87_s.jpg", title: "Flower8"},
    {url: "http://static.flickr.com/60/199480111_87d4cb3e38_s.jpg", title: "Flower9"},
    {url: "http://static.flickr.com/70/229228324_08223b70fa_s.jpg", title: "Flower10"}
];