Imagine if every Thursday your shoes exploded if you tied them the usual way. This happens to us all the time with computers, and nobody thinks of complaining. -- Jef RaskinRecently we had a forum question on eggheadcafe.com where the user indicated they were losing Session because of the use of FRAMESET or an IFRAME.If you implement a FRAMESET where frames point to other Web sites on the networks of your partners or inside your network, but you use different top-level domain names, you may notice in Internet Explorer 6 that any cookies you try to set in those frames are lost. This is most frequently experienced as a loss of session state in an Active Server Pages (ASP) or ASP.NET Web application. You try to access a variable in theobject that you expect to exist, and it is null. You can also see this problem in a FRAMEs context if your Web pages alternate between the use of Domain Name System (DNS) names and the use of Internet Protocol (IP) addresses. The fix is very simple…