playFrames('start','stop') on javascript

[Abenezer]

i would like to play frames between 'start' and 'end' , i know i clould add gotoAndPlay('start') to 'stop' frame action but the 'stop' frame is dynamic input from java script
this is more like a feature request
is it possible to add playFrames('start','stop') on the api, so that we could use something like
var start = x, stop = 'get from somewhere'); _anim.mc.playFrames(start,stop)