update


  // Allow for unprompted response from the engine
  
          function update(str1,str2){
                  chatter[chatpoint] = " \n> " + str1;
                  chatter[chatpoint] += "\n> " + str2;
                  chatpoint ++ ; 
                  if( chatpoint >= chatmax ){ chatpoint = 0; }
                  return write();
          }