The worlds most awesome AJAX implementation. Every 2 seconds request the documents URL from the server and replace the entire DOM with the response.

gistfile1.js

$(document).ready(function() {
	setTimeout(function() {
		$.ajax({
			cache: false
		}).done(function(html) {
			var newDoc = document.open("text/html", "replace");
			newDoc.write(html);
			newDoc.close();
		});
	}, 2000);
});