I’ve just had an article on DotNetSlackers published on porting ASP.NET AJAX Control Extenders to multiple browsers.

Porting a control extender that I am working to contribute to the ASP.NET AJAX Control Toolkit turned out to far more involved than I initially thought it would be. If you are a hardcore JavaScript developer then a lot of this may be familiar. But if you are like me, and JavaScript is just one of many technologies you are using, read on to learn from my mistakes.

More at:

http://dotnetslackers.com/articles/ajax/CrossBrowserAjaxControlExtenderTips.aspx