Move:
  - Left mouse button & drag
  - Arrow keys (click on image to activate)

Zoom in:
  - Right mouse button & drag up
  - Shift or Ctrl key with mouse & drag up
  - Mouse wheel up

Zoom out:
  - Right mouse button & drag down
  - Shift or Ctrl key with mouse & drag down
  - Mouse wheel down

Exit fullscreen: Press escape key

Viewing Panoramic Requires Java
GetJava Download Button