function jsonRequest(url, map, cbFunction) {
	var str = "";

	for (var key in map) {
		str = str + key + "=" + map[key] + "&";
	}

	str = str + "cb" + "=" + cbFunction;

	url = url + "?" + str;

	var scriptObj = document.createElement("script");
	scriptObj.type = "text/javascript";
	scriptObj.src = url;

	var headObj = document.getElementsByTagName("head")[0];
	headObj.appendChild(scriptObj);
}