html validator

hi i was wondering about — and ™ and onSubmit for xhtml 1.0
transitional
 
— is the mdash but it doesn't validate: Error: reference to non-SGML
character 
 
— will validate, however netscape 4 and below does not recognize it
 
same for –
 
and ™
 
i guess you can just call it a netscape issue, however...
 
i sent and e-mail to gerald before and it was corrected to validate recently
but after the last update it doesn't validate anymore.
 
is there a reason why? or did the previous change not come over in the new
version?
 
also onSubmit in the body tag does not validate
is there some other way to do this in JavaScript that will validate?
 
thanks.
jim.