SlackBuildsOrg/development/casperjs

CasperJS is an open source navigation scripting & testing utility
written in Javascript and based on PhantomJS — the scriptable headless
WebKit engine. It eases the process of defining a full navigation
scenario and provides useful high-level functions, methods & syntactic
sugar for doing common tasks like filling & submitting forms,
clicking and following links, scraping Web contents, etc.