I just subscribed to let know 3 things about this code.... 1.- I've been looking for such a code for MONTHS already, a JS solution helped me but gave lots of trouble in time delays on the page displaying. 2.- THIS ONE WORKS GREAT, only request, the PNG should be placed in html, NOT in CSS url(). That way won't work. 3.- I got some error image above mi images because I never noticed a transparent.gif was needed, so I created it an located it, but you know what?? it works better with a transparent.png (8, NOT 24 ! ).

That's it! I'm changing all my PNG 24 based websites to this solution, Thanks!

Pal's, remember, just for HTML declared png's (not CSS).