What's wrong with this If/Else Statement?

This statement isn't working or returning any errors. I posted more of the code below the problem lines if you need to look at it.

if humanoid then
	coroutine.resume(coroutine.create(function()
		hitPart.Decal:Destroy()
		particles.Texture = "rbxassetid://233246818"
		particles.Enabled = true
		wait(1)
		particles:Destroy()
	end))
	humanoid:TakeDamage(damage)
	print(damage)
else
	coroutine.resume(coroutine.create(function()
		particles.Texture = "rbxassetid://233246818"
		particles.Enabled = true
		wait(1)
		particles:Destroy()
	end))
end

Either way if humanoid exists or it doesn't it should change the texture of the particles and enable them. However it does not do either. When looking at the code below, hitPart is created and placed, decal is created, particle emitter is created.

--All of needed code below this line--

hitPart = Instance.new("Part")
			hitPart.Anchored = true
			hitPart.FormFactor = "Custom"
			hitPart.Size = Vector3.new(1,1,.1)
			hitPart.CFrame = SurfaceCFrame
			hitPart.Transparency = 1
			hitPart.Parent = workspace.IgnoreModel
			game.Debris:AddItem(hitPart,7)
			local decal = Instance.new("Decal",hitPart)
			decal.Face = "Front"
			particles = Instance.new("ParticleEmitter",hitPart)
			particles.Enabled = false
			particles.Size = .5
			particles.Texture = "rbxassetid://233246818"
			particles.Acceleration = Vector3.new(0,-10,0)
			particles.Lifetime = 1,1.2
			particles.Rate = 20
			particles.Rotation = 0,180
			particles.RotSpeed = 0,10
			particles.Speed = 5,5
			particles.VelocitySpread = 10
			
			
			if hit.Parent:FindFirstChild("Humanoid") then
				humanoid = hit.Parent.Humanoid
			elseif hit.Parent.Parent:FindFirstChild("Humanoid") then
				humanoid = hit.Parent.Parent.Humanoid
			else
				humanoid = nil
			end
			
		 	if humanoid then
				coroutine.resume(coroutine.create(function()
					hitPart.Decal:Destroy()
					particles.Texture = "rbxassetid://233246818"
					particles.Enabled = true
					wait(1)
					particles:Destroy()
				end))
				humanoid:TakeDamage(damage)
				print(damage)
			else
				coroutine.resume(coroutine.create(function()
					particles.Texture = "http://www.roblox.com/asset/?id=233246818"
					particles.Enabled = true
					wait(1)
					particles:Destroy()
				end))
			end

If humanoid a predefined statement on line one? If not, that would be the problem.