>>>>Check this out http://www.memail.com/fotos/Shaker.html
>>>
>>>I don't know how they do this. It locks the task until it finishes.
>>
>>I can't see any code that prevents keyboard and mouse interaction. It's a mystery. The funny part is at the bottom "Seattle Police distribute free steamed milk and espresso shots to shaken survivors" :-D
>
>I mean, it responds. However, if you try to switch task while it is running, it does not work.

I was able to switch tasks using NT. However, anything that needed that process to respond (i.e. mouse click in window or hot key) had to wait for the Javascript code to stop before it responded.