I've created this Code Color Formatter HTML generator that converts plain text specifically ActionScript code into color coded text through CSS. Try it yourself, paste a piece of code into the TextArea below and click the link below to see the highlighted output.
The list of keywords identified during the conversion may not be complete. Please do let me know if there are any bugs you find or any very common keywords i missed to include. Email me at harrykunz(at)hkunz.com.