In-game interface
This is the interface for Pokemon World Online.

Navigation:
These buttons are located in the bottom left of the interface. The features of each button are explained below. To close a box just click on the button again.

1. Bagpack
Allows you to view items in your backpack such as potions, pokeballs and badges. The tabs on the right provide more options.
2. Trainer
User is able to view their profiles. Includes rep, fishing level, pokemoney and playtime.
3. Pokedex
Currently not available.
4. Options
5. Map/Time
Displays player's current location and the ingame time.
6. Players/friends list
Allows you to view which players are online as well the current location of your friends. The friends list can be acessed by clicking the tab at the top of the box.
Pokemon list:

View your current pokemon team. Hovering over a pokemon will reveal their level, attack and defense.
Chat window:

Users can type in a message using the black box shown in the above image.
Channels
Users can use the tabs at the top of the chat box to go into channels. If a channels isn't displayed then click on 'Join channel' and enter the name of the channel you want to visit. For a list of channel commands go here. More info about channels are here.
Battle window:

This is the battle window for Pokemon World Online. Users have four options 'Fight', 'Bag', 'Pokemon' and 'Run'. A list of attacks, pokemon or items are shown in the box on the left when the user clicks on the selected button. The status of the battle eg. attacks are also shown in the box.
Pokemon switch window:

By going to the pc box in the pokecenter you can change the pokemon in your team. Hovering over the pokemon will give you information while right-clicking will bring out the pop up box shown. Items in grey are currently unavailable. Users can close it by pressing 'exit'.