If you search for the title of this tip you will found lot of hits. Actually, my last search returned 6.6 millions of hits! Apparently lot of people are having with - or has fears on this subject. When I first published this tip, back in 2005, there was no such amount of answers/references, and I think, that this real flood of sites about this potential issue is not because lot of people would having problems, but because more and more people are getting into building interactive sites.
So, do You have problems?