http://jermolene.wordpress.com/2007/06/08/links-for-2007-06-08/
Cross-browser Base-64 Images
Haven't time to look at this properly, but I'm hoping that Hedgerwow
has squared the circle with an implementation that works in IE, and
is adaptable to TiddlyWiki
http://www.hedgerwow.com/360/dhtml/base64-image/demp.php
This is certainly of interest to the TW community...
-- F.
* exhibit A: TiddlyBookmarklets
(http://jermolene.wordpress.com/2007/05/05/tiddlybookmarklets/)