function chooseRandomElement($array)
{
$rand_element = $array[rand(0, count($array) - 1)];
if (is_array($GLOBALS['CHOSEN_ITEMS']) && in_array($rand_element, $GLOBALS['CHOSEN_ITEMS']) && count($GLOBALS['CHOSEN_ITEMS']) < count($array)) {
return PSUFiles::chooseRandomElement($array);
} else {
$GLOBALS['CHOSEN_ITEMS'][] = $rand_element;
return $rand_element;
}
//end else
}
/**
* selects a random file from a given directory
*/
public function _random()
{
if ($this->type == 'image') {
$files = PSUFiles::getImageArray($this->base_dir . $this->dir, 0, $this->depth);
} else {
$files = PSUFiles::getImageArray($this->base_dir . $this->dir, 0, $this->depth, array('txt', 'html'));
}
//end if
$this->set(PSUFiles::chooseRandomElement($files));
}
