In Flex you wouldn't want to refresh the browser; only the
data displayed in the Flex application that is currently loaded.
This is more like sending a periodic Ajax request to update certain
parts of a HTML page instead of refreshing the whole page from the
Now coming back to your requirement, goole "Flex Timer" and
you should find plenty of examples on how to set up a Timer and
listen for it's events and take some action when these events fire.