Is there a Javascript or Jquery script that emulates Stack Overflow's flash message (the orange bar on top)?

Answer 1

Look at the stackoverflow source when you get one of those. Turn your cookies off to get the "first time" message, if you want an easy way. The page references:

http://sstatic.net/so/js/master.js?v=4700

And there's a bit of script that calls

<script type="text/javascript"> 
    $(function() { notify.showFirstTime(); });
</script>

That's the script that does it. Go into that master.js file and find that method.

Answer 2

Like this (jquery notifications plugin)?