function FindProxyForURL(url, host){
  if (dnsDomainIs(host, "youtube.com"))
    if (weekdayRange("MON","FRI"))
      if(timeRange(9,19))
        return "PROXY 127.0.0.1:80";
      else
        return "DIRECT";
    else
      if(timeRange(9,15))
        return "PROXY 127.0.0.1:80";
      else
        return "DIRECT";
  else
    return "DIRECT";
}