if (Drupal.jsEnabled) {
  $(document).ready(function(){
    $('#node-form .jstabs a').click( motocidTinyBump() );
  });
}

// this works from firebug's console, but not here... why?
function motocidTinyBump() {
  $('table.mceEditor').attr('width','100%');
  $('table.mceEditor').attr('style','');
  $('table.mceEditor iframe').attr('width','100%');
  $('table.mceEditor iframe').attr('style','');
}