ntwb / wordpress

			$position = explode( ' ', $_POST['background-position'] );

			if ( in_array( $position[0], array( 'left', 'center', 'right' ), true ) ) {

				$position_x = $position[0];

			} else {

				$position_x = 'left';

			}

			if ( in_array( $position[1], array( 'top', 'center', 'bottom' ), true ) ) {

				$position_y = $position[1];

				$position_x = 'left';

			}

			if ( in_array( $position[1], array( 'top', 'center', 'bottom' ), true ) ) {

				$position_y = $position[1];

			} else {

				$position_y = 'top';

			}

			set_theme_mod( 'background_position_x', $position_x );

			set_theme_mod( 'background_position_y', $position_y );