What is the biggest number your browser can stand? :D
then press F12 and type in: load(-yournumber/2, -yournumber/2, yournumber, yournumber, false) - it'll take a bit to load but you will see when it finished :)

Yes I am working at the performance(I am having 1,5-3 FPS @ yournumber = 6) :)

Mousemove+Click = move map
Mousemove+Click+Control = rotate map

104497409s ago, by Antonio