function decDay(/*int*/$days=1) {
$this->setTimestamp(@mktime($this->mHour, $this->mMinute, $this->mSecond, $this->mMonth, $this->mDate - $days, $this->mYear));
}
function decDay(/*int*/$days=1) {
$this->setTimestamp(@mktime($this->mHour, $this->mMinute, $this->mSecond, $this->mMonth, $this->mDate - $days, $this->mYear));
}