This question seems to be a troll-kind, but I'd really like to know
what would be the supported set of browsers so you can call your script
product "overall universal"?
I know that the current standards is the guideline. So putting it under
another angle:
While following the standards, whose "features", bugs, underdones,
curved-dones etc. should be taken into account to not loose a
*mesurable* part of your audience?
IMveryHO as of summer 2005 there are:
1) Firefox 1.0.4 / 1.0.5
2) Internet Explorer 5.5 / 6.0 / 6.0 SP1 (for Windows)
3) Internet Explorer 5 (for Mac)