如何在点击锚标记图像时弹出div

我创建了一个主图像和四个垂直缩略图。主图像顶角有一个锚标记图像。当我点击锚标记图像时，整个主图像及其拇指指甲在同一页面中显示为弹出窗口。

为此提供任何示例。

I have created one main image and four vertical thumbnails.one anchor tag image at top corner of main image. when i clicked on anchor tag image the whole main image and its thumb nails show as popup in the same page.
give any example for this.