Kirupa please help me with this one!

How do you accomplish the blur picture/masking alpha effect on this page -

  1. how is the blur accomplished
  2. what is done to make the masking effect clear so that you can see the real pic once the slider goes across the blurred pic - I know masking - I know how to use the alpha/tint etc - but I believe there dong something a little different

See my post in the other thread where we mentioned this.
If you need more of an explination, I’ll try to explain it better, but I think it’s pretty straight forward.

Where is the thread?