Forums Scripts & Popups Dialog Checkboxes. How to 'bind' them?

ON *:DIALOG:name:*:*: {

  if ( $devent == sclick ) {
 
   if ( $did == N ) ;; ID of the checkbox

    if ( $did( $dname, N ).state == 1 ) {
      echo -s checked!
    } 
    else {
      echo -s unchecked!
    }
  }
}