JavaScript/JScript/ECMAScript

Scripting language of many names After some battles early in its history, this Netscape-invented (JavaScript) and Microsoft-copied (JScript) scripting language has been standardized by the ECMA (ECMAScript). Despite the name, JavaScript is neither as powerful nor as complex as Java.
JavaScript in the browser JavaScript is widely supported in Microsoft, Netscape, and Opera browsers. The set of objects and parsers with which these scripts operate are quite different, however.
JavaScript on the server JavaScript is supported in both Microsoft's Active Server Pages and Netscape's Server Side JavaScript (SSJS).
JavaScript and Unicode The latest ECMAScript draft specifies that strings are stored as sequences of UTF-16 characters. Older implementations may not support this.