gistfile1.txt

REBOL [title: "Video"]
url: http://cam.luzern.org/axis-cgi/jpg/image.cgi?resolution=320x240
view layout [
    image 640x480 rate 0 feel [
        engage: func [f a e] [
            if a = 'time [
                f/image: load url
                show f
            ]
        ]
    ]
]