[funcall]

I believe clojurescript requires a patched Clojure implementation, and a JVM to support the generated Javascript at runtime, although I'm not 100% certain that these constraints are still true. And, I'm not sure how actively it's being developed. However, clojurescript is probably a better approach to this, with an appropriate intermediate representation (a nice byproduct of using the built-in compiler) etc.

clojurejs generates javascript which has no other dependencies (other than any in the source Clojure (subset) code itself) and should run on any reasonable browser.

FWIW, clojurejs is a much less ambitious effort born out of the necessity of one developer (me). You can read more about the current limitations and some of the things I'd like to improve on the project's github issues page and the Google groups discussion referenced elsewhere in these comments.