Ajaxify links

ajaxLink.js

(function($) {
    // Ajaxify links.
    // $('a.xxx').ajaxLink('.where-to-load-new-content',
    //      '.where-to-display-loading-splash',
    //      'html to display in loadingContainer (will be appended)',
    //      function to invoke when loading is complete)
    $.fn.ajaxLink = function(containerSelector, loadingContainer, loadingHtml, callback) {
        var $this = this;
        $this.click(function() {
            var href = $(this).attr('href');
            $(loadingContainer).append(loadingHtml);
            $.ajax(href, {
                dataType: 'html',
                success: function(data) {
                    var loaded = $(data).find(containerSelector);
                    $(containerSelector).html(loaded.html());
                    callback();
                }
            });
            return false;
        });
    };
})(jQuery);