MediaPlayer 的问题 。。。。。。。。。。。。在线等。

 function IndexClick(Index) {

                         var WmvPlayer = parent.PlayerDisplay.document.getElementById("MediaPlayer");

                         WmvPlayer.controls.currentMarker = Index;

                         alert(WmvPlayer.controls.currentMarker)

                         alert(WmvPlayer.controls.markerCount)

                         if (WmvPlayer.playState != "Playing") WmvPlayer.controls.play();

                         VisitJyorFy(m_MarkerTimes[Index - 1]);

                     }

  index==2
WmvPlayer.controls.currentMarker  的值 是0
WmvPlayer.controls.markerCount 的值是undefined
  不知道  currentMarker   这个是怎么用的 。求解 。。。。。。。。。。。。。
------解决方案--------------------
Player.controls.currentMarker就这么用的
http://msdn.microsoft.com/en-us/library/windows/desktop/dd562644%28v=vs.85%29.aspx