行的单元格有一组脚本*作——onmouseover和onmouseout——完成鼠标划过的效果。
In this case, there were 20 images in a gallery, and each had that onmouseover event handler.
在这个例子中，图库中有20个图像，每个都有onmouseover事件处理程序。
The row cell has a couple of script handlers—onmouseover and onmouseout—to provide rollover effects.
