I did right click your pic, Kiwi, expecting it to be flash and was hoping to zoom in for a closer look, that's why I'm surprised to find out that it's a gif file . And yes, a copy is stored away in my "RightClicked" folder ready to be dismantled and reverse engineered...
Even if I managed to decipher the effect and timing, I doubt if I could come up with a better animation to top that one, Kiwi.