Cool JavaScript Magnifier
We are developing an application which should display map to the user, allowing him to click on a specific regions on it. Problem is - the map is big, the screen is small (relatively, that is...). We didn't want to have a big scroller, because the user won't have a full prespective on the map.
I've started googling on the net, and found this. Undoubtly, one of the coolest Javascript snippets I've ever seen.