AS Tag Addition

Would it be possible add the version number to header of an AS block? Instead of the usual ActionScript Code created from [noparse]


[/noparse] you could write [noparse][as=3]

[/noparse] and it would give you *ActionScript 3 Code. *In the future, this could even be used to determine what type of syntax highlighting to use (AS1/2 vs 3).
 
Also, could a button for the AS tags be added to the editor mode also, along side PHP, HTML and code?