var previous = "audible";
function swapTopTen(id) {
if (previous != id) {
	//swap content
	var toUpdate = $('topTenList');
	var toptenreq = new Request.HTML({
		method: 'post',
		url: '../toptenswap.php',
		link: 'cancel',
		update: toUpdate,
		onRequest: function(){
			toUpdate.set('text', 'loading...');
			toUpdate.addClass('ajax-loading');
		},
		onComplete: function(response){
			toUpdate.empty().removeClass('ajax-loading').adopt(response);
		}
	});
	toptenreq.send('list='+id);
	//rollovers
	$$('#rollover_'+previous+' a').removeClass("current");
	$$('#rollover_'+id+' a').addClass("current");
	previous = id;
}
return false;
}