function obj2str(o){
var r = [];
if(typeof o ==”string”) return “\”"+o.replace(/([\'\"\\])/g,”\\$1″).replace(/(\n)/g,”\\n”).replace(/(\r)/g,”\\r”).replace(/(\t)/g,”\\t”)+”\”";
if(typeof o ==”undefined”) return “undefined”;
if(typeof o == “object”){
if(o===null) return “null”;
else if(!o.sort){
for(var i in o)
r.push(“\”"+i+”\”"+”:”+obj2str(o[i]))
r=”{“+r.join()+”}”
}else{
for(var i =0;i<o.length;i++)
r.push(obj2str(o[i]))
r=”["+r.join()+"]”
}
return r;
}
return o.toString();
}

/*
Object.prototype.toJSONString = function () {
……
// Join all of the fragments together and return.

a.push(‘}');
return a.join(”);
};
*/