public static function buildTableRow( $attribs, $cells ) {
		$s = self::openElement( 'tr', $attribs );

		foreach( $cells as $id => $cell ){
			$attribs = array();

			if( is_string( $id ) ) {
				$attribs['id'] = $id;
			}

			$s .= self::element( 'td', $attribs, $cell );
		}

		$s .= self::closeElement( 'tr' );

		return $s;
	}