Get a gif

Create an active background window
Well now you can change your background as often
as you want with the 'Getagif' CGI script.
It uses the cataloged library of images
at Washington University Data Archive.
First create an extra browser window (Press CTRL + N).
Then maximise this window.
Next make a selection from a category that interests you.
Lastly leave this window to load different backgrounds,
so switch away from this browser window (try CTRL + TAB).
Canned selections
Cars,Aircraft,Ships,Trains
Nature,Scenery,Climbing,Plants
War,Military,Vietnam
TV,Movies
SF,Space,Astronomy
Custom selections
You can select categories to include or exclude, there is no
need to do both.
If you select TV and Movies to include then
all the other categories
will be automatically excluded. If you
select Women to excluded
(many are swimsuit type pictures and
may be inappropriate)
then all categories but Women will be used.
To select an entry or group of entries use the
Mouse button. Use the key and the Mouse button to
select or unselect an entry while not clearing previous selections.
After you have made your selections click on Start now! and you
will be sent a randomly chosen picture from the library, and it will
change after the specified time or every time you click on the image.