Use the following link

CIW Web Development Series Certification

CIW Web Development Series Certification exam is a vendor neutral, entry-level credential designed for IT, marketing professionals, web site designers, and graphic artists in JavaScript language essentials, including program flow control, form validation, image animation, frame targeting and cookie creation; JavaScript code development, including writing programs and writing script for the JavaScript object model; web site implementation, including authoring and scripting, Web content creation, Web management and digital media tools; and much more.

Requirements for CIW Web Development Series Certification

Although there are no official prerequisites for this certification, both CIW and uCertify recommend that candidate should have hands-on-experience of JavaScript language.

You need to pass the 1D0-635 : CIW JavaScript Specialist exam to get CIW JavaScript Specialist certification.