* @param Societe $seller Thirdparty seller (we need $seller->country_id property). Provided only if seller is the supplier, otherwise $seller will be $mysoc.
* @param array $localtaxes_array Array with localtaxes info array('0'=>type1,'1'=>rate1,'2'=>type2,'3'=>rate2) (loaded by getLocalTaxesFromRate(vatrate, 0, ...) function).
* @param integer $progress Situation invoices progress (value from 0 to 100, 100 by default)
* @return result[ 0=total_ht,
* @return array [ 0=total_ht,
* 1=total_vat, (main vat only)
* 2=total_ttc, (total_ht + main vat + local taxes)
