/**
* @link http://code.google.com/p/gaforflash/source/browse/trunk/src/com/google/analytics/ecommerce/Transaction.as#76
*
* @return \UnitedPrototype\GoogleAnalytics\Internals\ParameterHolder
*/
protected function buildParameters()
{
$p = parent::buildParameters();
$p->utmtid = $this->transaction->getOrderId();
$p->utmtst = $this->transaction->getAffiliation();
$p->utmtto = $this->transaction->getTotal();
$p->utmttx = $this->transaction->getTax();
$p->utmtsp = $this->transaction->getShipping();
$p->utmtci = $this->transaction->getCity();
$p->utmtrg = $this->transaction->getRegion();
$p->utmtco = $this->transaction->getCountry();
return $p;
}