debug.js

var d = 0;
var stack = [];
var LOG = console.log;
Function.prototype.callMe = Function.prototype.call;
Function.prototype.call = function () {
	var depth = '';
	for (var i = 0; i < d; ++i) { depth = depth + '    '; };
	++d;
	LOG('>>' + arguments.callee.caller.name);
	stack.push(depth + '>> ' + arguments.callee.caller.name);
	var result = Function.prototype.callMe.apply(this, arguments);
	stack.push(depth + '<< ' + arguments.callee.caller.name);
	--d;
	return result;
};


stack = [ 'RESTART' ];
console.log('foobar');
stack.push('PAUSE');
console.log('barfoo');
stack.push('ENDLOG');
Function.prototype.call = Function.prototype.callMe;
console.dir(stack);