Webcam recording in Action script 3

I am using mr-webcams code for recording from a webcam. This is the source code of main functions.

//functions for recording
function doRecord() {
 if (Record_btn.getLabel() == "Record" && archiveName_tx.text != "") {
  archiveName_tx.type = "dynamic"
  // show live video feed.
  Live_video.attachVideo(client_cam);
  Live_video.attachAudio(client_mic);
  // Start publishing the camera output as a recorded stream
  record_ns.attachVideo(client_cam);
  record_ns.attachAudio(client_mic);
  record_ns.publish(archiveName_tx.text, "record");// record stream
  // Change the button label
  Record_btn.setLabel("Stop");
  nTimer = setInterval(stopRecording, 30000);//does it WORK???
 } else if (Record_btn.getLabel() == "Stop") {
  // Close output stream
  record_ns.close();
  //
  record_ns.attachVideo(null);
  record_ns.attachAudio(null) 
  //
  Live_video.attachVideo(null)
  Live_video.attachAudio(null) 
  //
  liveStreamInfo_so.data.broadcastStatus = null
  liveStreamInfo_so.data.currentBroadcast = ""
  // Change the button label
  Record_btn.setLabel("Record");
  editList(archiveName_tx.text, "newOne")
  archiveName_tx.text = ""
  archiveName_tx.type = "input"
 }
}
function playArchive(){
 if(Record_btn.getLabel() != "Record"){return;}
 Live_video.clear()
 Live_video.attachVideo(live_ns)
 live_ns.play(archiveView_tx.text)
}
// deletes archive flv and shared object reference
function deleteArchive(){
 editList(archiveView_tx.text, "removeOne")
 // calls the function on the ASC called delStream, send over the name of the flv
 client_nc.call("delStream", null, archiveView_tx.text)
 archiveView_tx.text = ""
}


function stopRecording():Void{ //may own code
   // Close output stream
  record_ns.close();
  //
  record_ns.attachVideo(null);
  record_ns.attachAudio(null) 
  //
  Live_video.attachVideo(null)
  Live_video.attachAudio(null) 
  //
  liveStreamInfo_so.data.broadcastStatus = null
  liveStreamInfo_so.data.currentBroadcast = ""
  // Change the button label
  Record_btn.setLabel("Record");
  editList(archiveName_tx.text, "newOne")
  archiveName_tx.text = ""
  archiveName_tx.type = "input"
  clearInterval(nTimer);
 

}