"Proper" handling of MVC3 Ajax links

ajaxlink.js

(function($) { 
  /**
    * Ajaxify MVC3 ActionLinks
    *
    * @params {  
    *   *success : result handling function(data, textStatus, jqXHR)
    *   *data : Data to send (accepts json data as default)
    *    verb : Http verb to use ('POST', 'GET', ..) Defaults to 'POST'
    *    type : dataType expected from server, Defaults to 'html'
    *    contentType : contentType sent TO server Defaults to 'application/json'    
    *    error : error handling function(jqXHR, textStatus, errorThrown)
    * }
    *  
    *
    * Usage: 
    * $('#ajaxstuff').ajaxLink({
    *    data: { foo: 'Fooinator' },
    *    success: function (data) { console.log(data); }
    * });
    *
    */
  $.fn.ajaxLink = function (params) {
    if (!params || !params.data || !params.success) 
    throw new Error('ajaxLink parameters missing');

    //this is equal to $(this) in the current scope
    //save this reference for use inside nested scopes
    var link = this,

    //Defaults to type:html, verb:POST, 
    //content: 'application/json'
    verb = params.verb || 'POST',
    type = params.type || 'html',            
    contentType = params.contentType || 'application/json',

    //If contentType is set, do not assume json
    data = (params.contentType ? params.data : JSON.stringify(params.data));

    //Attach eventhandler to (this) link
    link.click(function () {
      $.ajax({
        url: params.url || link.attr('href'),
        type: verb,
        data: data,
        contentType: contentType,
        dataType: type,
        success: function (result, status, xhr) {                    
          params.success(result, status, xhr);                    
        },
        error: function (xhr, status, error) {
          if (params.error) params.error(xhr, status, error);
        }
      });

      //Stop the click from actually posting the page
      return false;
    });

   
  };

})(jQuery);

AjaxStuff.cshtml

@Html.ActionLink("Click me!", "AjaxStuff", null, 
  new { id = "ajaxstuff" })    

donotwant.cs

@Ajax.ActionLink("Hurf", "Durf", "Controllurf", 
  new { param = somestuff }, 
  new AjaxOptions { 
    HttpMethod = "Post", 
    OnSuccess = "Somejs" 
  })

Somecontroller.cs

public ActionResult AjaxStuff(object foo) {
  var stuff = new { Name = "Stuff" + foo };

  ViewBag.Stuff = stuff.Name;

  return View();
}

usage.js

$('#ajaxstuff').ajaxLink({              
  data: { foo: 'Fooinator' },
  success: function (data) {             
    $('#ajaxdiv').html(data);
  }         
});