Update browser every 2 hour (if there is connection)?

Question

I'm experimenting with a digital signage solution that just view a flash-player on repeat in Firefox (R-kiosk installed)

Now I run a that makes the player update every 2 hour (I use remote update)

The problem is that sometimes the router loses its connection. The browser only says "Your internetconnection is lost..." or something.. Is there any possibility to: check if there's internet connection (every 2 hour) and if it is, update. Else don't. I use php.

Thanks!

Answer 1

Use an ajax request in the background to keep connection alive or test:

$.ajax({
    statusCode: {
        404: function() {
            alert("page not found");
        }
    }
});

You can use this portion of code to supplement your own ajax status detector. Just find out which code you get when connection is lost and build from there...

http://api.jquery.com/jQuery.ajax/