Control two FLVPlayback by one seekBar or another controller

Hii
i have two FLVPlayback on stage i need to control the both videos by one controller when back or skip some second the both videos moved to the same second , i have created seekBar "seekbar_mc" at stage and typ the code
myflv1.seekBar =myflv2.seekBar =seekbar_mc;
it give me 2 slider on seekBar but i need one only can controlling the 2 FLVPlayback
any one can help me please ?!

1. add an EnterFrame eventlistener to the stage that checks if any seekbar is being scrubbed
http://help.adobe.com/en_US/FlashPlatform/reference/actionscript/3/fl/video/FLVPlayback.ht ml#scrubbing
2.If yes:use
http://help.adobe.com/en_US/FlashPlatform/reference/actionscript/3/fl/video/FLVPlayback.ht ml#playheadTime
to get the value the user scrubbed to
3.use at last: the seek function on the other flvComponent:
http://help.adobe.com/en_US/FlashPlatform/reference/actionscript/3/fl/video/FLVPlayback.ht ml#seek%28%29
to synchronize both videos
when synchronized the seekbars should be in synch to
you should be able to translate that to the case were you have a third, central seekbar on stage:
Caveat: its highly unlikely that this double streaming will work efficiently in a web based environment.
If you want to have it functioning reliably you should abandon the flvplayback component (which is only good when it comes to streaming)
and preloading both your videos in total, before you allow the user to scrub.

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