[jQuery] Add callback to plugin?

[Nic Hubbard]

What is the best way to add a callback to a plugin that I wrote?  Do I
just add it as an additional option?

So, after the ajax function is run, how would I allow a custom
callback or function to be added by the user?

  $.fn.testStatus = function(options) {
    var defaults = {
      status: '?action=live'
    };

    var options = $.extend(defaults, options);

    return this.each(function() {

      var obj = $(this);
      var itemId = obj.attr('id');
      var itemHref = obj.attr('href');
      obj.click(function() {
        var question = confirm('Are you sure you want change the
status?');
        if (question) {
          $.ajax({
            type: 'POST',
            url: itemHref + defaults.status
          });
        }
        return false;
      });
    });
  };