I don't understand what I'm doing wrong..?

So..I have 2 scripts that I'm working on. The first one is for making my gui button function...here's what I have, which doesn't seem to work:

player = game.Players.PlayerAdded
button = script.Parent
function click()
    if click then
        game.StarterGui.FNMain.Frame.Play.Transparency = 1
        wait(.2)
        game.StarterGui.FNMain.Frame.Play.Transparency = 0
    end
end
button.MouseButton1Click:connect(click)

and then theres my 2nd script which I have been working very hard to get to work and it isn't...so I have a Gui Image that I want to go from 1 transparency to 0 transparency decreasing by .5. I have 3 scripts I attempted which won't work. Here are both:

game.Players.PlayerAdded:connect(function(player)
    player.CharacterAdded:wait()
local x=game.StarterGui.FNMain.Frame.ImageLabel
for i=1,10 do
wait(0.5)
x.ImageTransparency = x.ImageTransparency-0.1
end 
end)

Here's the 2nd script:

--[[x=game.StarterGui.FNMain.Frame.ImageLabel
for i=1,10 do
wait(0.5)
x.ImageTransparency = x.ImageTransparency-0.1
end]]

Here's the 3rd script:

local a = game.StarterGui.FNMain.Frame.ImageLabel 

for _ = 0, 1, .1 do
a.ImageTransparency = _
end

SORRY THAT THIS IS SO BIG..!