function setValue($value)
{
if (is_array($value)) {
if ($value['u'] == 'lifetime') {
$this->period = Am_Period::getLifetime();
} else {
if ($value['c'] && $value['u']) {
$this->period = new Am_Period($value['c'], $value['u']);
} else {
$this->period = new Am_Period();
}
}
} else {
$this->period = new Am_Period($value);
}
$value = $this->period->__toString();
parent::setValue($value);
}