Aaaaarrrggghhhhhh

[Seafront Plodder]

Help me solve this puzzle; it's driving me nuts!!

http://www.datacraft.co.jp/takagism/index_e.html

[El Gordo]

That's an excellent puzzle. I should have gone out running an hour ago but I've spent it trying to solve this instead.

I just cheated and looked up the solution, though I've not got there yet.

How far have you got?

[Seafront Plodder]

I've found the safe, but don't know the combination...

[El Gordo]

I haven't got as far as the safe. I guess this is what appears when the animation finishes? Haven't managed to click on the x yet.

But anyway, what I've read is that the combination is contained in the URL that is mentioned on the note or whatever it is. To save you going there, it's 1994.