//Prototype init string
Ajax.Responders.register({
	onCreate: function() {
		if($('busy') && Ajax.activeRequestCount>0)
		 	$('busy').innerHTML = "<img src='images/searching.gif'>";},
	onComplete: function() {
		if($('busy') && Ajax.activeRequestCount==0)
			$('busy').innerHTML = "<img src='images/blank.gif'>";}});