HTML

首先我们先放四张图片：

<ul class="tb-thumb" id="thumblist">
    <li class="tb-selected">
        <div class="tb-pic tb-s40">
            <a href="#">
                <img src="images/01_small.jpg" mid="images/01_mid.jpg" big="images/01.jpg"
                />
            </a>
        </div>
    </li>
    <li>
        <div class="tb-pic tb-s40">
            <a href="#">
                <img src="images/02_small.jpg" mid="images/02_mid.jpg" big="images/02.jpg"
                />
            </a>
        </div>
    </li>
    <li>
        <div class="tb-pic tb-s40">
            <a href="#">
                <img src="images/03_small.jpg" mid="images/03_mid.jpg" big="images/03.jpg"
                />
            </a>
        </div>
    </li>
    <li>
        <div class="tb-pic tb-s40">
            <a href="#">
                <img src="images/04_small.jpg" mid="images/04_mid.jpg" big="images/04.jpg"
                />
            </a>
        </div>
    </li>
    <li>
        <div class="tb-pic tb-s40">
            <a href="#">
                <img src="images/05_small.jpg" mid="images/05_mid.jpg" big="images/05.jpg"
                />
            </a>
        </div>
    </li>
</ul>

jQuery

接着我们对大图带有样式.jqzoom进行插件调用。当点击缩略图的时候，切换大图的图片。

$(function() {
    $(".jqzoom").imagezoom();
    $("#thumblist li a").click(function() {
        $(this).parents("li").addClass("tb-selected").siblings().removeClass("tb-selected");
        $(".jqzoom").attr('src', $(this).find("img").attr("mid"));
        $(".jqzoom").attr('rel', $(this).find("img").attr("big"));
    });
});