In this example, a view change mbox fires off the hash change event when you click Profile2 below. The response will deliver a Target offer which will replace the main content.
profile 1
Lorem ipsum dolor sit amet, consectetuer adipiscing elit.
Aenean commodo ligula eget dolor. Aenean massa.
Welcome
profile 2
Donec sodales sagittis magna. Sed consequat, leo eget
bibendum sodales, augue velit cursus nunc.