[js / jQuery]  Button with Progress Bar

Can you remember the new UI concept for buttons called "Ladda" by Hakim El Hattab? Yes that was a very attractive approach to display progress of a process right inside the button. Rethinking the concept with an optimal way here is a demonstration of the same using minimal coding. Let me know how you guys like it:

Button with Progress Bar by @effone.

There is also a jQuery plugin made by me called 'thrive'. If you are facing trouble or need guidance to implement - effone is here.