is a popular client-side web
scripting language. It has higher-order functions and is by many accounts a jolly nice scripting language.
parse-js is a simple ECMAScript 3 parser
is also needed to implement the client-side part
)-- a Common-Lisp implementation of which can be found as CL-AJAX
If XML seems too heavy-weight one can use cl-json or st-json to directly send JSON (Java Script Object Notation).