391     muteFlag = 0
393         muteFlag = SetMute(jet_event.track_num, muteFlag)
394     return muteFlag
398     muteFlag = 0
403             muteFlag = SetMute(track_num, muteFlag)
405             muteFlag = ClearMute(track_num, muteFlag)
406     return muteFlag
419 def SetMuteFlag(track, muteFlag, mute):   argument
422         SetMute(track, muteFlag) 
424         ClearMute(track, muteFlag)  
426 def SetMute(track, muteFlag):  argument
429         muteFlag |= 1 << (track)
430         return muteFlag
433         return muteFlag
435 def ClearMute(track, muteFlag):  argument
438         muteFlag &= ~(1 << (track))
439         return muteFlag;
442         return muteFlag
444 def GetMute(track, muteFlag):  argument
447         if (muteFlag & ( 1 << (track))) == 0: