Disable Enable BUTTON using query

Disable Enable BUTTON using query :

Disable :
      Using Id :
             $('#ButtonId').attr('disabled', 'disabled');
      Using Class:
              $('.ButtonClass').attr('disabled', 'disabled');

Enable :
     Using Id :
              $('#ButtonId').removeAttr('disabled');
     Using Class:
              $('.ButtonClass').removeAttr('disabled');


Cheers,