Mandatory? For everybody? There's a cost to supporting IE6, and a cost to not supporting it. Depending on what you're doing, it might make much better sense to

Mandatory? For everybody? There's a cost to supporting IE6, and a cost to not supporting it. Depending on what you're doing, it might make much better sense to do something like: http://code.google.com/p/ie6-upgrade-warning/ http://code.google.com/p/ie6-upgrade-warning/ IE6 usage is falling fast, even in China.