Disappearing Block Script!

enabled = 0
val = 0

function onTouched(part)



local h = part.Parent:findFirstChild("Humanoid")
 if (h ~=nil) then

if (enabled == 0) then
enabled = 1
val = val+0.1
script.Parent.Transparency = val
script.Parent.CanCollide = true
wait(.1)
val = val+0.1
script.Parent.Transparency = 0.1+val
script.Parent.CanCollide = true
wait(.1)
val = val+0.1
script.Parent.Transparency = 0.1+val
script.Parent.CanCollide = true
wait(.1)
val = val+0.1
script.Parent.Transparency = 0.1+val
script.Parent.CanCollide = true
wait(.1)
val = val+0.1
script.Parent.Transparency = 0.1+val
script.Parent.CanCollide = true
wait(.1)
val = val+0.1
script.Parent.Transparency = 0.1+val
script.Parent.CanCollide = true
wait(.1)
val = val+0.1
script.Parent.Transparency = 0.1+val
script.Parent.CanCollide = true
wait(.1)
val = val+0.1
script.Parent.Transparency = 0.1+val
script.Parent.CanCollide = true
wait(.1)
val = val+0.1
script.Parent.Transparency = 0.1+val
script.Parent.CanCollide = true
wait(.1)
script.Parent.Transparency = 1
script.Parent.CanCollide = false
wait(2)
val = 0
enabled = 0
script.Parent.Transparency = 0
script.Parent.CanCollide = true
end
 end
 end

script.Parent.Touched:connect(onTouched)