gistfile1.js

function _parseTime(time){ // convert float second to integer milliseconds
  return Math.max(0, parseInt(parseFloat(time)*1000));
}

function _handleCallBack(cb, ev){
  try {
    if(ev){
      cb(ev);
    }
    else{
      cb();
    }
  } catch (e){
    log(e.message);
  }
}