Need Help with Interoperability?

If you are a web developer and you are having problems with interoperability problems, mainly cross browser code, perhaps you can view Doron's article about Migrate apps from Internet Explorer to Mozilla. He is IBM's Software Engineer Staff and he has worked for Mozilla Project for over five years. This article will mainly discuss about IE and Mozilla, so Opera users will have to try the code used in this article by themselves, but i don't think that as a big obstacles.