ajaxForm_with_fancybox - pulled from a project for dissection

ajaxForm_with_fancybox.js

$.fn.ajaxForm_with_fancybox = function(options) {
  $("<input>").attr("type", "hidden").attr("name", "lightbox").val("1").appendTo(this);

  var url = jQuery(this).attr("action");

  this.ajaxForm({
    url: url + ".json",
    
    beforeSend: function(request){
      $.fancybox.showLoading();
    },
    error: function(request, textStatus, errorThrown){
      $.fancybox.hideLoading();
    },
    success: function(data, textStatus, request){
      var location = data.location;
      if (location !== null && location !== "" && location !== undefined) {
        window.location = location; // redirect to page
      } else {
        // check if main site content, if yes, close and redirect to naked site
				if ($(data).find(".logged-in").length > 0) {
				  $.fancybox.close(true);
				  window.location = "/";
				}
				else {
	        $.fancybox({
	          'content' : data
	        });
				}
      }
    }

  });
};