Intro GUI not working help??

I am making a game similar to Darkness, but only WAY different. I'm using GUIs for my main start screen, but when I put the script o that when the player clicks it, the script doesent work. The gui just stays. Im not an expert scripter, so this is probably wrong.

gui = game.StarterGui.IntroGui

function OnClicked()

wait(3)

gui.destroy()

Probably wrong, someone fix my errors please?

local gui = game.StarterGui.IntroGui
local button = game.StarterGui.Button --Change this to your button
button.MouseButton1Down:connect(function()
	gui.destroy()
end

You didn't define what OnClicked was

For the answer above me, what type of script did you put it in? LocalScript or Script? Try both.

Also, Im sure its :Destroy() not .destroy()