if ( $postData [ 'A' ] == 'on' ) $this -> optin ( 'A' , $fields ) ;

if ( $postData [ 'B' ] == 'on' ) $this -> optin ( 'B' , $fields ) ;

if ( $postData [ 'C' ] == 'on' ) $this -> optin ( 'C' , $fields ) ;

if ( $postData [ 'D' ] == 'on' ) $this -> optin ( 'D' , $fields ) ;

if ( $postData [ 'E' ] == 'on' ) $this -> optin ( 'E' , $fields ) ;

if ( $postData [ 'F' ] == 'on' ) $this -> optin ( 'F' , $fields ) ;

if ( $postData [ 'G' ] == 'on' ) $this -> optin ( 'G' , $fields ) ;