How to stop FLV after going different frames?

Hi everyone!
I have three FLV files and I created a movieclip and put these FLV files.
My problem is that after viewing FLV and I go to different frames, then FLV is still playing. How to stop this?

This is how I wrote AS3:

stop();

function vid1(e:Event):void{
vidPlayer.source = “http://www.funrise.com/flash/BBQ.flv
}
vid1_btn.addEventListener(MouseEvent.CLICK,vid1);

function vid2(e:Event):void{
vidPlayer.source = “http://www.funrise.com/flash/GAZOOKA.flv
}
vid2_btn.addEventListener(MouseEvent.CLICK,vid2);

function vid3(e:Event):void{
vidPlayer.source = “http://www.funrise.com/flash/TYPHOON.flv
}
vid3_btn.addEventListener(MouseEvent.CLICK,vid3);

Hope someone helps this.

Thanks,