function Serialize(obj){   

switch(obj.constructor){   
        case Object:   
            var str = "{";   
            for(var o in obj){   
                str += o + ":" + Serialize(obj[o]) +",";   
            }   
            if(str.substr(str.length-1) == ",")   
                str = str.substr(0,str.length -1);   
             return str + "}";   
             break;   
         case Array:               
             var str = "[";   
             for(var o in obj){   
                 str += Serialize(obj[o]) +",";   
             }   
             if(str.substr(str.length-1) == ",")   
                 str = str.substr(0,str.length -1);   
             return str + "]";   
             break;   
         case Boolean:   
             return "\"" + obj.toString() + "\"";   
             break;   
         case Date:   
             return "\"" + obj.toString() + "\"";   
             break;   
         case Function:   
             break;   
         case Number:   
             return "\"" + obj.toString() + "\"";   
             break;    
         case String:   
             return "\"" + obj.toString() + "\"";   
             break;       
     }   
}