Function.prototype.trace = function()
{
	var trace = [];
	var current = this;
	while(current)
	{
		trace.push(current.signature());
		current = current.caller;
	}
	return trace;
}
Function.prototype.signature = function()
{
	var signature = {
		name: this.getName(),
		params: [],
		toString: function()
		{
			var params = this.params.length > 0 ? 
				"'" + this.params.join("', '") + "'" : "";
			return this.name + "(" + params + ")"
		}
	};
	if(this.arguments)
	{
		for(var x=0; x<this.arguments.length; x++)
			signature.params.push(this.arguments[x]);
	}
	return signature;
}
Function.prototype.getName = function()
{
	if(this.name)
		return this.name;
	var definition = this.toString().split("\n")[0];
	var exp = /^function ([^\s(]+).+/;
	if(exp.test(definition))
		return definition.split("\n")[0].replace(exp, "$1") || "anonymous";
	return "anonymous";
}
/*
// An example of how to use this code:
function a(moo)
{
	var trace = arguments.callee.trace();
	document.getElementById("output").innerHTML = trace.join("<br/>\n");
}
*/