var mycarousel_itemList = [
    {url: 'images/gym-tour-1.jpg', title: ''},
    {url: 'images/gym-tour-2.jpg', title: ''},
    {url: 'images/gym-tour-3.jpg', title: ''},
    {url: 'images/gym-tour-4.jpg', title: ''},
    {url: 'images/gym-tour-5.jpg', title: ''}
];

function mycarousel_itemVisibleInCallback(carousel, item, i, state, evt)
{
    // The index() method calculates the index from a
    // given index who is out of the actual item range.
    var idx = carousel.index(i, mycarousel_itemList.length);
    carousel.add(i, mycarousel_getItemHTML(mycarousel_itemList[idx - 1]));
};

function mycarousel_itemVisibleOutCallback(carousel, item, i, state, evt)
{
    carousel.remove(i);
};

/**
 * Item html creation helper.
 */
function mycarousel_getItemHTML(item)
{
    return '<img src="' + item.url + '" width="500" height="334" alt="' + item.title + '" />';
};