public function camelize($lowerCaseAndUnderscoredWord)
{
$_this =& self::getInstance();
if (!($result = $_this->_cache(__FUNCTION__, $lowerCaseAndUnderscoredWord))) {
$result = str_replace(' ', '', self::humanize($lowerCaseAndUnderscoredWord));
$_this->_cache(__FUNCTION__, $lowerCaseAndUnderscoredWord, $result);
}
return $result;
}