分享一款jQuery焦点图插件，这款焦点图是全屏的，看上去十分大气，另外，焦点图的每一张图片都带有文字描述，并且鼠标滑过图片时文字描述可以上下滚动。(Share a jQuery focus map plug-in. This focus is full screen. It looks very atmospheric. In addition, each picture of the focus graph has a text descr iption, and the text desc