I found the following code on the internet. By using this code, a spinner is showed automaticly if an Ajax request is running. Very nice!
// registreer een algemene spinner
Ajax.Responders.register({
onCreate: function() {
if (Ajax.activeRequestCount > 0)
Element.show('spinner');
},
onComplete: function() {
if (Ajax.activeRequestCount == 0)
Element.hide('spinner');
}
});
Didn't know prototype had this global register method. I should take a better look at the API!