761 	function SetWeights ( $weights )  argument
763 		assert ( is_array($weights) );
764 		foreach ( $weights as $weight )
767 		$this->_weights = $weights;
771 	function SetFieldWeights ( $weights )  argument
773 		assert ( is_array($weights) );
774 		foreach ( $weights as $name=>$weight )
779 		$this->_fieldweights = $weights;
783 	function SetIndexWeights ( $weights )  argument
785 		assert ( is_array($weights) );
786 		foreach ( $weights as $index=>$weight )
791 		$this->_indexweights = $weights;