public function getTypeById( $id, $prefix = null )
	{
		if ( ! isset( $this->typeIds[ $id ] ) ) return false;
		return isset( $this->typeIds[ $id ]['istype'] ) && $this->typeIds[ $id ]['istype']
			? $this->getType( $this->typeIds[ $id ]['name'], $prefix )
			: $this->getElement( $this->typeIds[ $id ]['name'], $prefix );
	}