kjs-5: kjs-5 (Javascript engine) kjs-5: kjs-5: The KJS library provides an ECMAScript compatible interpreter. The kjs-5: ECMA standard is based on well known scripting languages such as kjs-5: Mozilla's JavaScript and Microsoft's JScript. kjs-5: kjs-5: kjs-5: kjs-5: kjs-5: kjs-5: