UI framework?

[eluser]Scriptor[/eluser]
Did you mean "an app" instead of "ab app", sorry, just making sure since license issues can get messy if everything's not 100% clear.

Actually, now that I'm looking at their site, it seems a bit vague. They use between words like "commercial advantage from your app" and just "distrubute". I recommend that you send them an email and give them the exact description of what you want to do. I remember not too long ago that there was a stir in the Javascript community over extjs's license. Still, as long as you're only using it in your website, you shouldn't have to release your code. Otherwise, there's something really messed up.