There are quite a few Lisp/Scheme interpreters out there, just google "scheme in javascript" or "lisp in javascript". Here's two; http://www.joeganley.com/cod

There are quite a few Lisp/Scheme interpreters out there, just google "scheme in javascript" or "lisp in javascript". Here's two; http://www.joeganley.com/code/jslisp.html http://www.joeganley.com/code/jslisp.html http://www.crockford.com/javascript/scheme.html http://www.crockford.com/javascript/scheme.html They look very extendable too.