The problem is only, always to have mono, crossed, parallel and red/cyan might be a bit cumbersome (to create, maintain, and read).
I dont know whether the stereo photo viewer applet (free of use for noncommercial sites) can be used to simplify handling of the different stereo techniques. As I have understood it, you simply make a jpg with a view of the left and the right eye, and this applet creates the stereo image of your choice, for example crossed eye, parallel eye, red/cyan, various other anaglyph, interlaced, or Sharp 3dlcd.
For general use I only find its size (1.5MB) and processing time a bit problematic. What do you (especially quickfur) think?