Windows媒体播放器对象z索引。

What makes windows media player layer over my drop menu page elements? It doesn't seem to help if I change the z-index for the media player object. I have a z-index of 99 for my drop down menu page elements and of 40 for the object. This problem only happens when the video is running. When it isn't running the drop down menu elements show on top of the object. Here is the HTML.What makes windows media player layer over my d