Move mouse out of frame?

How do I stop this when the mouse leaves the fame?

function tweentrans()

repeat wait()
print("OnFrame")
until Box.MouseLeave:connect()

print("leave")
end

script.Parent.MouseEnter:connect(tweentrans)

I would use a variable called inFrame, that becomes true when mouseEnter, and false on mouseLeave.

inFrame = false
function tweentrans()

repeat wait()
print("OnFrame")
until inFrame == false

print("leave")
end

script.Parent.MouseEnter:connect(function()
	inFrame = true
	tweentrans()
end)

script.Parent.MouseLeave:connect(function()
	inFrame = false
end)