Well, since we started working on SEO tools this is one of the type of things we are looking to do. I am not sure this specifically will be added to our library but it is worth looking at for the grand scope and power of tools. (Esp. since this weeks blogs have been full of jQuery stuff. ) Check out this page for details and examples. It is actually some very amazing concepts wrapped up into this plugin.
I am looking at doing it this way or considering what it might take to do the same thing in ColdFusion. Of course there is one other issue that we are looking at building some of our tools as AIR applications. This means they may not need ColdFusion for this part of the application at all. (That is scary... imagine building something outside the power of ColdFusion?)