Javascript 向连续滚动的旋转木马添加滚动条

我目前有一个图像滚动器，它使用连续滚动的旋转木马，在

MouseOver

上停止，类似于fitbit在其工作页面上的第一件事：

除非我不知道如何添加滚动条，如果你把它滚动到一边的末端，滚动条会以另一种方式出现

这是我目前的代码，非常简单：

HTML

<div id="wrapper">
    <div id="carousel">
        <div>
            <img src="img/fruit1.png" alt="fruit1" width="200" height="200" />
            <span>Apple</span>
        </div>
        <div>
            <img src="img/fruit2.png" alt="fruit2" width="200" height="200" />
            <span>Mandarin</span>
        </div>
        <div>
            <img src="img/fruit3.png" alt="fruit3" width="200" height="200" />
            <span>Banannas</span>
        </div>
        <div>
            <img src="img/fruit4.png" alt="fruit4" width="200" height="200" />
            <span>Cherries</span>
        </div>
        <div>
            <img src="img/fruit5.png" alt="fruit5" width="200" height="200" />
            <span>Orange</span>
        </div>
        <div>
            <img src="img/fruit6.png" alt="fruit6" width="200" height="200" />
            <span>Melon</span>
        </div>
        <div>
            <img src="img/fruit7.png" alt="fruit7" width="200" height="200" />
            <span>Lemon</span>
        </div>
        <div>
            <img src="img/fruit8.png" alt="fruit8" width="200" height="200" />
            <span>Grapes</span>
        </div>
        <div>
            <img src="img/fruit9.png" alt="fruit9" width="200" height="200" />
            <span>Peach</span>
        </div>
        <div>
            <img src="img/fruit10.png" alt="fruit10" width="200" height="200" />
            <span>Pear</span>
        </div>
        <div>
            <img src="img/fruit11.png" alt="fruit11" width="200" height="200" />
            <span>Strawberry</span>
        </div>
        <div>
            <img src="img/fruit12.png" alt="fruit12" width="200" height="200" />
            <span>Melon</span>
        </div>
    </div>
</div>

使用此库扩展：

jquery.carouFredSel-6.0.4-packed.js

html, body {
    height: 100%;
    padding: 0;
    margin: 0;
}
body {
    background-color: #eee;
    position: relative;
    min-height: 300px;
}
body * {
    font-family: Arial, Geneva, SunSans-Regular, sans-serif;
    font-size: 14px;
    color: #333;
    line-height: 22px;
}

#wrapper {
    background-color: #fff;
    border-top: 1px solid #ccc;
    width: 100%;
    height: 50%;
    margin-top: -1px;
    position: absolute;
    left: 0;
    top: 50%;
}
#carousel {
    margin-top: -100px;
}
#carousel div {
    text-align: center;
    width: 200px;
    height: 250px;
    float: left;
    position: relative;
}
#carousel div img {
    border: none;
}
#carousel div span {
    display: none;
}
#carousel div:hover span {
    background-color: #333;
    color: #fff;
    font-family: Arial, Geneva, SunSans-Regular, sans-serif;
    font-size: 14px;
    line-height: 22px;
    display: inline-block;
    width: 100px;
    padding: 2px 0;
    margin: 0 0 0 -50px;
    position: absolute;
    bottom: 30px;
    left: 50%;
    border-radius: 3px;
}

jquery.carouFredSel-6.0.4-packed.js