Switching between Configuration languages in ScintillaNet?

We're trying to implement an editor for a mix between javascript and HTML based on ScintillaNet.

The javascript code is embedded in between <SCRIPT> </SCRIPT> tags...

What I'd like to do is to be able to switc开发者_高级运维h between the html and javascript configurations. Is this possible ? (I've seen the StyleNeeded event but I'm sure that this is the right event to catch)...