How do i make my own Chat Gui and how do i get rid off the normal chat?

Please help, i want to know how to delete the normal chat and add my own chat gui.

http://wiki.roblox.com/index.php?title=How_to_Make_a_Pseudo_Chat_GUI

Either make the chat bubble chat and do this or you can use the following code to entirely rid of the chat.

game.StarterGui:SetCoreGuiEnabled(3, false)


--[[ Make a LocalScript and place it in the StarterGui. 
	0	PlayerList (The Leaderboard Gui on the right top of the screen.) 
	1	Health (The Health Bar Gui.)
	2 	Backpack (The Backpack Gui where the tools are stored in.) 
	3	Chat (The Chat Gui.) 
	4	All (All options: 0, 1, 2, 3, 4.) ]]