The pui.ontimeout event, if defined, is a function that fires after a client-side session timeout occurs in a Genie or a Profound UI application. At this point, the session is over and an information screen displays. This event could be used, for example, to navigate to another page, close the browser window (where allowed), etc.
Example:
pui.ontimeout = function() {
location.href = "/my_timeout_page.html"
}