You are the best choice - these are the tools for creating JS. This is a Flash Professional plugin that allows you to publish Flash content in HTML5.
Link: http://www.adobe.com/products/flash/flash-to-html5.html
Also, take a look at Lee Brimelou's tutorial:
http://gotoandlearn.com/play.php?id=174 --- Flash Toolkit for CreateJS
and
http://gotoandlearn.com/play.php?id=172 --- Convert ActionScript to JavaScript
As you will see, you can do some awesome things using Flash Professional to do design / art, but you will also see that you will also need to do some encoding, so this is not an ideal solution.
If you are interested in creating games / applications that will run in Flash (.swf), JavaScript (.html, .js) and most other popular platforms, it is best to check out Haxe ( http://haxe.org ). In addition, it supports OpenFL, which uses Haxe as a programming language ( http://www.openfl.org ). Haxe is a different language, but it is 98% like a script action, so it will be easy for you to get started.
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