Virtual visit

Hello, does anyone know how to make a virtual visit in flash ??
i mean to have some controlers or from the keyboard and when you move right or left up or down… you can see the rest of the image… i don’t know if you understand

I think you can make it if you have an oversized image and a smaller square as mas in the center… and as you click on the controller buttons or keyboard… the mask moves and you can see the rest of the image… hope understand what i mean …
heres an example of what i want but in flash …
http://www.thehidingroom.com
any tutorial or a fla…
thanks.