[TxMt] Question regarding scoping

[Branko]

I don't really know how to ask this question in a simple manner so here 
it goes:

I'm doing some HTML coding and need to add JavaScript using the 
Prototype framework. In this early develpment phase I like to write 
JavaScript embedded in HTML. When I write a script tag, 
"source.js.embedded.html" gets added to the scope. How can I tell 
TextMate to use features from the Prototype & Scriptaculous bundle in 
addition to the JavaScript default one? Shifting languages is tedious 
and messes up the highlighting.