def search(self,lat=None,lng=None,height=None,lat_rng=None,lng_rng=None,height_rng=None,name=None):
     json_msg = jfac.createSearch(lat,lng,height,lat_rng,lng_rng,height_rng,name)  
     resp = requests.get("%s/search/?jsonMsg=%s&sid=90908978"%(self.service_url,json_msg))
     json_obj = json.loads('%s'%resp.content)
     if 'Error' in json_obj:
         return None
     else:
         return json_obj
     return str(json_obj)