anchor.diff:    req.send(data);
     
     // Prevent to execute the default action for "submit"
  -  //event.preventDefault();
  +  event.preventDefault();
   }
   
   /**
  
positive.code:         
          query('#logout_button').style.display = '';
          query('#error').style.display = 'none';
          Date timeNew = new Date.now();
          var time = timeNew.millisecondsSinceEpoch - timeOld.millisecondsSinceEpoch;
          print(time);
        } 
        else if (req.status == 401) {
           print("Error: User/password is incorrect");
           query('#error_text').text = "User/password is incorrect";
           query('#error').style.display = '';
        }
        
        pets++;
        
        if(pets < 100) {
          login();
        }
      }
    });
    
  
negative.code: #import('dart:html');
  #import('dart:json');
  
  /** Main function. Intializes all the buttons and fucntions for future use. */
  void main() {
    query('#formulary').on.submit.add(newQuery);
    query('#form_login').on.submit.add(login);
    query('#logout').on.click.add(logout);
    query('#close').on.click.add(hideError);
  }
  
  /** 
  