In Prototype I can show a "loading..." image with this code: var myAjax = new Ajax.Request( url, {method: 'get', parameters: pars, onLoading: showLoad, onComplete: showResponse} ); function showLoad () { ... } In jQuery, I can load a server page into an element with this: $('#message').load('index.php?pg=ajaxFlashcard'); but how do I attach a loading spinner to this command as I did in Prototype?