make possible to use restart with autostart and cookies

I'm using autostart and cookies, so if you return to my page you don't get the hints again.
But I use a button so if you want to see the hints again, you can restart it.

But since your having a cookie and the plugin does not get rendered completely, there are some elements missing.
I create the tips if they don't exist yet. And check if some elements exist so there is no js error.