public static Hashtable hashtableFromJson(this string json)
 {
     return(MiniJson.JsonDecode(json) as Hashtable);
 }
 public static string toJson(this Dictionary <string, string> obj)
 {
     return(MiniJson.JsonEncode(obj));
 }
 public static ArrayList arrayListFromJson(this string json)
 {
     return(MiniJson.JsonDecode(json) as ArrayList);
 }
 public static string toJson(this Hashtable obj)
 {
     return(MiniJson.JsonEncode(obj));
 }