How to put close animation on a GUI menu?

I created a script in which, when the GUI menu is clicked open, plays an animation and does the same animation in reverse when closing. However it only plays the open animation and not the closing one.

debounce=false

script.Parent.MouseButton1Click:connect(function()
    if not debounce then
        debounce=true
        if script.Parent.Image then
            -- OPEN ANIMATION --
            script.Parent.Parent.Frame.Visible=true
            for i=1,5 do
                -- Resize WIDTH --
                script.Parent.Parent.Frame.Size=script.Parent.Parent.Frame.Size+UDim2.new(0.05,0,0,0)
                wait()
            end
            for i=1,5 do
                -- Move UP --
                script.Parent.Parent.Frame.Position=script.Parent.Parent.Frame.Position-UDim2.new(0,0,0.05,0)
                wait()
            end
            for i=1,20 do
                -- Resize HEIGHT --
                script.Parent.Parent.Frame.Size=script.Parent.Parent.Frame.Size+UDim2.new(0,0,0.0225,0)
                wait()
            end
            script.Parent.Image="http://www.roblox.com/asset/?id=274812390"
        else
            -- CLOSE ANIMATION --
            script.Parent.Parent.Frame.Visible=false
            for i=1,5 do
                -- Resize WIDTH --
                script.Parent.Parent.Frame.Size=script.Parent.Parent.Frame.Size-UDim2.new(0.05,0,0,0)
                wait()
            end
            for i=1,5 do
                -- Move UP --
                script.Parent.Parent.Frame.Position=script.Parent.Parent.Frame.Position+UDim2.new(0,0,0.05,0)
                wait()
            end
            for i=1,20 do
                -- Resize HEIGHT --
                script.Parent.Parent.Frame.Size=script.Parent.Parent.Frame.Size-UDim2.new(0,0,0.0225,0)
                wait()
            end
            script.Parent.Image="http://www.roblox.com/asset/?id=274791999"

        end
        debounce=false
    end
end)

and no, I can't tween because I don't know how.