function isUndefined(obj) {
		return typeof obj === "undefined";
	}
log4javascript

log4javascript is a logging framework for JavaScript based on log4j
for Java. This file contains all core log4javascript code and is the only
file required to use log4javascript, unless you require support for
document.domain, in which case you will also need console.html, which must be
stored in the same directory as the main log4javascript.js file.

Author: Tim Down <tim@log4javascript.org>
Version: 1.5 dev
Edition: log4javascript
Build date: 6 April 2009
Website: http://log4javascript.org