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How is JavaScript different from Java?

The JavaScript programming language, developed by Netscape, Inc., is not part of the Java platform.

For additional information about JavaScript, visit

JavaScript Error javascript.JSException: Unknown name

When loading the webpage an error is displayed:
JavaScript Error javascript.JSException: Unknown name

Possible causes:
  1. JavaScript is not enabled in the browser.
  2. The browser does not support JavaScript technology.
  3. The web page has a JavaScript programming error.

If JavaScript is already enabled in the web browser, then the error message indicates that there is a programming error in the JavaScript code. Contact the webmaster of that site to report the error including:

  1. Error message
  2. Type and version of the browser used
  3. URL of the web page that displayed the error message
  4. Steps to reproduce the error

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