void *aClosure, PRUint32 aDelay)
void *aClosure, PRUint32 aDelay, PRUint32 aPriority, PRUint32 aType )
nsresult TimerImpl::Init(nsTimerCallbackFunc aFunc,                          void *aClosure,                          PRUint32 aDelay)//----------------------------------------------------------------------------------------{  mCallbackFunc = aFunc;  mClosure = aClosure;  SetDelaySelf(aDelay);  return TimerPeriodical::GetPeriodical()->AddTimer(this);}