Recursion on an array of URLs in JavaScript until one succeeds or the end is reached

recurse.js

var urls = [
	'http://getspaz.com/nosir!',
	'http://funkatron.com/',
	'http://getspaz.com/nosir!'
];

var index = 0;

function tryme() {
	if (index < urls.length) {
		
		$.ajax({
			'url':urls[index],
			'error':function() {
				alert('failed! on '+urls[index]);
				index++;
				tryme();
			},
			'success':function() {
				alert('succeeded! on '+urls[index]);
				return;
			}
		});
		
	} else {
		alert('no more URLs to try!');
	}
}

tryme();