US-based startup is looking for a javascript developer to refactor/enhance an existing javascript library. MUST HAVE: - Strong javascript skills - Good knowledge of DOM and cross-browser development - Ability to tests on different platforms (IE, Firefox, Safari (Mac)..) - Appreciation for web standards - Ability to write good documentation OTHER SKILLS: - Ability to write test cases (jsunit or equivalent) a plus. - Good knowledge of PHP,Ajax a plus for future projects (not required for this...