This is the home of the JavaScript ErrorHandler object. You can download it from here.
The purpose of this object is simply to report any JavaScript errors that may have accumulated during the parsing/execution of the JavaScript on your web page.
The JavaScript API documents that an engine will call the function that is bound to the
window.onError attribute, when a parsing error or an execution error
occurs in a piece of code. This little library snippet binds a handler function
to that attribute so that we capture every error on the page.
To use this library you should do something like:
<html> <head> <!-- load the error handler before doing anything else --> <script language="JavaScript" src="error_handler.js"></script> ... </head> <body> ... </body> </html>