JSON conversion with functions

/*

 "unsafe" JSON converters, allows one to also include functions 
 (does nto support native functions but an example workaround is given)

*/

JSON.unsafeStringify = function(obj){
	if(typeof obj == 'object'){ 
		if(obj instanceof Array) for(var i=0;i<obj.length;i++) obj[i] = JSON.unsafeStringify(obj[i]);
		else for(var k in obj) obj[k] = JSON.unsafeStringify(obj[k]);
	};
	if(typeof obj == 'function') obj = obj.toString();
	if((/native code/).test(obj)) obj = 'function(){}';
	return JSON.stringify(obj);		
};

JSON.unsafeParse = function(str){
	var obj = JSON.parse(str);
	return JSON.unsafeParse.evalFunctions(obj);
};
// helper			
JSON.unsafeParse.evalFunctions = function(obj){
	if(typeof obj == 'object'){
		if(obj instanceof Array) for(var i=0;i<obj.length;i++) obj[i] = JSON.unsafeParse(obj[i]);
		else for(var k in obj) obj[k] = JSON.unsafeParse(obj[k]);
	};
	if(typeof obj =='string' && (/^function/).test(obj)) return (new Function('return '+obj+';'))();				
	return obj;
};

/* example */
// var json = {foo:'bar',fn:function(){ return "qwer"},a:Math.log}; // will not work with natives
var json = {foo:'bar',fn:function(){ return "qwer"},a:function(){return Math.log.apply(null,arguments)}}; // but this will
console.debug(JSON.unsafeParse(JSON.unsafeStringify(json)))