console.log patch for IE and class _debug or _d to use instead of console.xxx functions. Minimised version included

console.js

 if (typeof console === "undefined") { 
 	var console = { 
 		log: function() {}, 
 		info: function() {} , 
 		warn: function() {}, 
 		error: function() {} 
 	}
 }
 _debug = {
	log : function(message) {
		if(!config.debug) { return; }
		if(typeof console === 'undefined') { return; }
		if(typeof console.log === 'undefined') { return; }
		console.log(message);
	},
	warn : function(message) {
		if(!config.debug) { return; }
		if(typeof console === 'undefined') { return; }
		if(typeof console.warn === 'undefined') { return; }
		console.warn(message);
	},
	info : function(message) {
		if(!config.debug) { return; }
		if(typeof console === 'undefined') { return; }
		if(typeof console.info === 'undefined') { return; }
		console.info(message);
	},
	error : function(message) {
		if(!config.debug) { return; }
		if(typeof console === 'undefined') { return; }
		if(typeof console.error === 'undefined') { return; }
		console.error(message);
	},
	dir : function(obj) {
		if(!config.debug) { return; }
		if(typeof console === 'undefined') { return; }
		if(typeof console.dir === 'undefined') { return; }
		console.dir(obj);
	},
	l : function(message) {
		this.log(message);
	},
	w : function(message) {
		this.warn(message);
	},
	i : function(message) {
		this.info(message);
	},
	e : function(message) {
		this.error(message);
	},
	d : function(obj) {
		this.dir(obj);
	}
};
_d = _debug;

if (typeof console === "undefined") {var console = {log: function() {}, info: function() {} , warn: function() {}, error: function() {} } } _debug = {log : function(message) {if(!config.debug) { return; } if(typeof console === 'undefined') { return; } if(typeof console.log === 'undefined') { return; } console.log(message); }, warn : function(message) {if(!config.debug) { return; } if(typeof console === 'undefined') { return; } if(typeof console.warn === 'undefined') { return; } console.warn(message); }, info : function(message) {if(!config.debug) { return; } if(typeof console === 'undefined') { return; } if(typeof console.info === 'undefined') { return; } console.info(message); }, error : function(message) {if(!config.debug) { return; } if(typeof console === 'undefined') { return; } if(typeof console.error === 'undefined') { return; } console.error(message); }, dir : function(obj) {if(!config.debug) { return; } if(typeof console === 'undefined') { return; } if(typeof console.dir === 'undefined') { return; } console.dir(obj); }, l : function(message) {this.log(message); }, w : function(message) {this.warn(message); }, i : function(message) {this.info(message); }, e : function(message) {this.error(message); }, d : function(obj) {this.dir(obj); } }; _d = _debug;